key: cord-0746964-40car3jd
authors: Lambert, L.; Joshanloo, M.; Marquez, J. M.; Cody, B.; Arora, T.; Warren, M.; Aguilar, L.; Samways, M.; Teasel, S.
title: Boosting Student Wellbeing Despite a Pandemic: Positive Psychology Interventions and the Impact of Sleep in the United Arab Emirates
date: 2022-05-17
journal: Int J Appl Posit Psychol
DOI: 10.1007/s41042-022-00066-2
sha: d381f8906abf0f05095837ebd8c0cb45da20602d
doc_id: 746964
cord_uid: 40car3jd

Positive psychology interventions hold great promise as schools around the world look to increase the wellbeing of young people. To reach this aim, a program was developed to generate positive emotions, as well as improve life satisfaction, mental toughness and perceptions of school kindness in 538 expatriate students in Dubai, United Arab Emirates. Starting in September 2019, the program included a range of positive psychology interventions such as gratitude, acts of kindness and mental contrasting as examples. Life satisfaction and mental toughness at mid-year were sustained or grew by the end of the year. Positive affect, emotional wellbeing and social wellbeing increased at post-intervention 1, compared to baseline. However, this improvement reverted to baseline levels at post-intervention 2, when data were collected during the COVID-19 pandemic. Only psychological wellbeing, negative affect, perceptions of control, and school kindness were increased at post-intervention 2. During the lockdown, students moved less, but slept and scrolled more. Those who extended their sleep duration reported greater wellbeing. Boosting wellbeing through the use of positive psychology interventions works – even in a pandemic – and extended sleep duration appears to be a driving factor for this observation.

Positive psychology has grown since its debut, bringing with it a demand for programming designed to nurture wellbeing. An outgrowth of this is positive education, which considers schools to be apt settings in which psychological skills can be taught for increasing wellbeing (White & Kern, 2018) . One way to impart these skills has been through positive psychology programs where youth learn to capitalize on the positive and overcome the negative (Chodkiewicz & Boyle, 2017; White & Kern, 2018) . Such programs are growing globally (Hendriks et al., 2019; Kim et al., 2018) , including in the Middle East/North Africa (MENA) region. These developments are timely as reports show that youth wellbeing is a serious concern across many nations (Hawke et al., 2020; Huang & Zhao, 2020; Marques de Miranda et al., 2020) , with studies already recording increases in youth depression, anxiety, and suicidality (Lai et al., 2018; Lawrence et al., 2015; Twenge et al., 2019; World Health Organization, 2017) as well as declines in life satisfaction globally (Marquez & Long, 2021) .

The sleep habits of young people have also received much attention given the close connection they have to a wide range of health and wellbeing outcomes Palmer & Alfano, 2017; Roberts & Duong, 2014) , including depression, anxiety, emotional regulation and school performance (Marino et al., 2021; Orchard et al., 2020) . Adolescents commonly experience delayed circadian rhythmicity resulting in a preference for eveningness (Hagenauer et al., 2009; Hummer & Lee, 2016) ; consequently, later sleep timings are common in this age group. In fact, much evidence suggests a high proportion of teens globally are sleep deprived (Hysing et al., 2020; Matricciani et al., 2012) , and more so relative to early school starts, which do not take their biology into account. While sleep has gained notoriety in adolescent health research, it has not commonly been included in positive psychology studies or examined as a contributor to wellbeing.

Recently, the COVID-19 pandemic, a protracted global public health crisis with its widespread physical, psychological, social, economic, and societal toll has interrupted lives, families, and institutions. This context has had wide-ranging effects on young people; some experienced better mental health and wellbeing, while others experienced worse (e.g., Mitra et al., 2021) . While the current study was not intended to study the effects of the pandemic, its unexpected presence offered an interesting opportunity to examine the effects of such a program within this context. This event also allowed us to determine who did better and why, particularly with respect to other less commonly examined factors affecting youth, like sleep, as well as social media use/time online and physical activity.

As "wellbeing" is multidimensional and entails both feeling good and functioning well, it is often used as an umbrella term for a wide range of concepts. While we retain the term for ease of discussion, there are nonetheless major ways in which wellbeing is understood. With a focus on feeling good, hedonic wellbeing contributes to human flourishing (Huta & Ryan, 2010) and is often measured by the presence of positive emotions and an absence or low frequency of negative emotions. Equally important is eudaimonic wellbeing (Ryff & Singer, 2008) , more concerned with purpose in life, relationships, goal strivings and personal growth. While both forms of wellbeing are distinct, complementary (Huta & Waterman, 2014; Ryan & Huta, 2009 ) and necessary for a good life (Joshanloo, 2016) , an absence of poor functioning, i.e., mental health issues like depression and anxiety, is also vital. The presence of wellbeing and absence of illness are increasingly being integrated into a definition of mental health (Bohlmeijer & Westerhof, 2021) . At last, a cognitive appraisal of how satisfied individuals are with their lives as a whole (Diener et al., 2009 ) is another facet of wellbeing.

Positive psychology has done much to explore the benefits of wellbeing. For example, individuals with more positive affect and higher life satisfaction have a greater likelihood of obtaining a college degree and being employed (DeNeve & Oswald, 2012; Haase et al., 2012; Longhi et al., 2018; Turban et al., 2013) . With greater life satisfaction, academic performance tends to rise (Bücker et al., 2018; Durlak et al., 2011; Suldo et al., 2008 Suldo et al., , 2011 Zi Jia et al., 2015) , as do perceptions of academic ability and social support (Danielsen et al., 2009; Suldo & Huebner, 2006; Suldo et al., 2008) and school engagement (Heffner & Antaramian, 2016; Lewis et al., 2011) . Higher wellbeing protects against mental health issues and resulting academic declines (Lyons et al., 2013) . In particular, youth who demonstrate more social competence and engagement tend to experience less depression, loneliness, and anxiety into their twenties (Kansky et al., 2016; Richards & Huppert, 2011) . Associated socioemotional skills also boost labour market success and higher earnings (Anghel & Balart, 2017; Lundberg, 2019; Sørensen & Krassel, 2019; Walsh et al., 2018) .

While the presence of wellbeing contributes to a range of positive outcomes, mental health issues and its contributors, tend to do the opposite. Sleep has been consistently related to adolescent mental health Palmer & Alfano, 2017; Roberts & Duong, 2014) . Specifically, disturbed sleep predicts depression and anxiety, as well as their severity (Marino et al., 2021; Orchard et al., 2020) . Studies have shown difficulties in emotional regulation management in adolescents, with parents noting teens greater oppositionality after a few nights of poor sleep (Baum et al., 2014) . Lower quality and duration of sleep has also been associated with worse learning outcomes and school performance (Chaput et al., 2016; Hayes & Bainton, 2020; Hysing et al., 2016) . In contrast, longer sleep duration predicts subjective wellbeing and life satisfaction (Kalak et al., 2014; Lai & Ma, 2020; Ness & Saksvik-Lehouillier, 2018; Yang & Cha, 2018) , with one cross-sectional analysis (Thumann et al., 2019) observing that higher wellbeing scores initially were associated with longer sleep duration and fewer odds of sleep disturbances, suggesting a bi-directional relationship between the two factors.

A contributor to poor sleep is also time spent online (i.e., smartphone use, video games, social media, etc.) (Arora et al., 2014; Hysing et al., 2015; Lund et al., 2021) . Time-consuming, it generates psycho-physiological arousal due to its content and disrupts circadian rhythms (Illingworth, 2020) . Studies suggest that online activity is fueling low levels of wellbeing and mental health (Kleszczewska et al., 2018; Marques et al., 2017; Rees, 2017; Twenge et al., 2018; Vannucci et al., 2020) , although some studies show no, or positive effects Jensen et al., 2019; Kovess-Masfety et al., 2016; Orben & Przybylski, 2019) . For instance, during the pandemic, adolescents reporting more gratitude turned to social media more frequently to have meaningful peer conversations (Maheux et al., 2021) , while those who connected more often with their peers experienced less loneliness (Ellis et al., 2020) . The consensus seems to be that the impact of social media is dependent on how it is used, to what degree, by whom and with what pre-existing factors (Appel et al., 2020) .

During the pandemic, rates of physical activity were also impacted due to a variety of lockdown measures (e.g., Karageorghis et al., 2021 ); yet, studies show that those who maintained or increased their activity experienced better wellbeing (Chen et al., 2020; Nie et al., 2021; Tandon et al., 2021; Wright et al., 2021) . These findings are important in light of evidence showing that physical activity is known to reduce symptoms of mental disorders and improve life satisfaction (Chekroud et al., 2018; Lees & Hopkins, 2013; McDowell et al., 2019; Schuch et al., 2018; White et al., 2017) . The reverse is also true: suspending physical activity is associated with decreases in subjective wellbeing (Sokić et al., 2021; Weinstein et al., 2017) . How young people use their time appears to be impactful for wellbeing (Rees, 2017; Rees & Main, 2015) .

Positive psychology interventions (PPIs), are the behavioral and cognitive strategies designed to generate greater states of wellbeing, including positive emotions, as well as the actions and thoughts that underpin behaviors known to enhance it, including sleep. Examples of PPIs include acts of kindness (Kerr et al., 2015; Pressman et al., 2015) and self-compassion (Warren et al., 2016) . A systematic review that specifically explored the effect of gratitude interventions upon physical health revealed that, of eight, five reported a significant improvement to sleep quality (Boggiss et al., 2020) , with single studies showing the same (Alkozei et al., 2019; Jackowska et al., 2016) . Meta-analyses in clinical and general population samples (Carr et al., 2020; Chakhssi et al., 2018; Hendriks et al., , 2020 Hone et al., 2015; Weiss et al., 2016; White et al., 2019) have confirmed the efficacy of PPIs on both hedonic and eudaimonic measures of wellbeing, including appraisals of life satisfaction.

Yet, effect sizes of PPIs are generally small with inconsistent dose effects (Fischer et al., 2020) . For instance, Sin and Lyubomirsky's (2009) meta-analysis found PPIs to have moderate effects in decreasing symptoms of depression (r = .31) and enhancing wellbeing (r = .29). Bolier et al.'s (2013) meta-analysis found smaller effect sizes (r = .17; d = 0.34) for subjective wellbeing, for psychological wellbeing (r = .10; d = 0.20) and for depression (r = .11; d = 0.23). White et al. (2019) re-evaluated both, citing that these studies had small sample sizes, the bias of which was pronounced, and when taken into account, the effect size of PPIs on wellbeing were small but still significant (approximately r = .10). Fischer et al.'s (2020) meta-analysis of past reviews also compared the effectiveness of PPIs with other types of interventions such as CBT and mindfulness on anxiety, depression, wellbeing, and stress. They found that for anxiety, PPIs had comparable or slightly larger effects than CBT and others; for depression, some PPIs did more poorly than other interventions; for wellbeing, PPIs were comparable to others except for mindfulness which had stronger effects; and for stress, no differences across intervention types were found.

Multi-component PPI (MPPI; Hendriks et al., 2020) programs offering a battery of PPIs administered over time with many measures collectively assessed, have also been examined. For instance, Shoshani and Steinmetz (2014) compared PPI use in a middle school, where optimism, gratitude, character strengths, positive emotions, and strengthening relationships were the aim. PPI groups showed less distress, depression and anxiety a year later and gains in optimism, self-esteem and self-efficacy, with controls showing the opposite. Similarly, Shoshani and Slone (2017) evaluated 32 weeks of positive education modules across 12 classes: relative to controls, treatment groups showed more prosocial behavior, subjective wellbeing, and empathy, but no change to mental health. Finally, in Kuwait (Lambert et al., 2019b) a program delivering weekly PPIs to almost 1,000 university and secondary students, showed that relative to controls three months later, wellbeing also rose.

Finally, the COVID-19 pandemic focused attention to the remediation of negative emotional experiences as emerging studies showed that loneliness, anxiety, stress, insomnia, fear and depression rose (Killgore et al., 2020; Kokou-Kpolou et al., 2020; Loades et al., 2020; Palgi et al., 2020; Shigemura et al., 2020) . As PPI studies conducted during the pandemic are still forthcoming (i.e., Bono et al., 2020; Dominguez-Rodriguez et al., 2020; Prinzing et al., 2020) , they too showed promise. For instance, Brouzos et al. (2021) evaluated a six-week online PPI program with Greek adults showing that positive outcomes persisted two weeks later. Moreover, these sustained outcomes resulted in greater positive emotion and resilience, as well as a reduction in levels of perceived loneliness, depression and anxiety. Dennis et al. (2020) explored the role of time orientation, examining which present-, past-or future-focused PPI had the largest effect on wellbeing during the pandemic, with the Best Possible Self (futurefocused) exercise showing the strongest outcomes.

The purpose of this study, which incidentally occurred during the COVID-19 pandemic, was to determine whether the delivery of a MPPI program, developed by the primary author and components of which were previously tested in schools and universities (i.e., Lambert et al., 2019a, b) , could impact satisfaction with life, positive and negative affect, indicators of mental health, perceptions of school kindness, and levels of mental toughness. PPIs included for example, positive reminiscing (Speer & Delgado, 2017) , mental contrasting (Oettingen et al., 2015) , and self-compassion (Neff & Pommier, 2013 ) (see Appendix for full content). Changes in physical activity, sleep duration, social media use and time playing video/online games were also explored.

The MPPI program was delivered to 538 students (54.4% females) in grades 9 to 13 from a UAE private school. The breakdown was such: year 9 = 86 students (aged 13 to 14 years of age), year 10 = 118 (aged 14 to 15 years of age), year 11 = 109 (aged 15 to 16 years of age), year 12 = 115 (aged 16 to 17 years of age), year 13 = 101 (aged 17 to 18 years of age), and no response = 9. The school is host to mostly expatriate students, with the sample consisting of 18 Australians, 20 Canadians, six students from the Gulf Cooperation Council nations (GCC; Oman, Bahrain, Qatar, Saudi Arabia, UAE, or Kuwait), 99 Indians, 24 Pakistani nationals, 242 British, and 17 American students. An additional 127 students reported 'Other' nationalities, with nine reporting nothing. The sample sizes at post-intervention 1 (PO1) and postintervention 2 (PO2) were 375 (55.6% females) and 265 (60.7% females), respectively. As there was neither control group, nor randomization, this sample comprised the total number of students taking part in the MPPI program.

The MPPI program consisted of 15-to-20-minute weekly instruction. The program began in September 2019, when baseline measures were first taken, and were followed by post-test measures (PO1) at the end of December 2019, and a second set (PO2) at the end of June 2020. Measures were completed by students via a link provided by the counselling team, in which students provided their identification numbers to track scores over time. Identification numbers were removed at the end of the program and data were coded anonymously. No grades or incentives were given for participation. Ethical approval was granted by the primary author's former institution and students and their parents provided informed written consent.

The weekly PPI program, the only programming being offered to students at this time, was delivered by teachers assigned to individual student groups with whom they met weekly for non-instructional contact time dedicated to catching up on classroom tasks, homework, guidance, etc. Approximately 15 to 20 minutes of this 60-minute time block was dedicated to the PPI program, where students were provided a short lesson on the topic at hand and engaged in either a writing, reflection, action, or discussion activity to be done in the class and with practice throughout the week. As the school shifted its instruction online at the start of the COVID-19 lockdown in the third week of March (2020), the same groups remained intact and program delivery continued online. Students did not return to the physical school for the remainder of the academic year from this point onwards.

Hedonic and eudaimonic measures were used showing acceptable internal consistency levels ( Table 2) .

The Positive & Negative Affect Schedule for Children-Short Form (PANAS-C-SF; Ebesutani et al., 2012) assesses positive and negative affect in children six to 18 years of age. There are ten items (i.e., joyful, cheerful, happy, lively, proud, miserable, mad, afraid, scared, sad) rated on a five-point Likert scale where higher ratings indicate a greater level of the given emotion based on the previous week.

The Mental Health Continuum Short Form (MHC-SF; Keyes, 2009) measures social wellbeing (social integration, contribution, growth, social acceptance, social interest), emotional wellbeing (positive emotion and life satisfaction, considered hedonic wellbeing), and psychological wellbeing (autonomy, personal growth, selfacceptance, environmental mastery, positive relations, and life purpose, considered eudaimonic wellbeing). The 14-item scale has been validated across cultural contexts (Joshanloo et al., 2013; Khumalo et al., 2012) and has good test-retest reliability (Lamers et al., 2012) .

The Student Satisfaction with Life Scale (SSLS) (Huebner, 1991) ; This sevenitem measure of life satisfaction in children as young as eight years has acceptable internal consistency, a unidimensional factor structure, and adequate temporal stability. An item example includes, "My life is better than most kids," and "I have what I want in life."

The (2) Commitment: remaining steadfast in the face of goal pursuit despite difficulty;

(3) Challenge: accepting threat as opportunities for growth; (4) Confidence: having faith in one's personal and interpersonal abilities (Clough et al., 2002) . Internal consistency (alpha) estimates range from 0.70 to 0.79 (Gerber et al., 2018; Lang et al., 2019; McGeown et al., 2018) .

Time-use was measured using five-point Likert scales for a. physical activity ("In an average week, how many minutes of physical activity do you do? 1) 30 minutes or less; 2) 60 minutes or less; 3) 90 minutes or less; 4) 120 minutes or less; 5) More than 120 minutes"); b. hours of sleep ("How many hours of sleep, on average, do you get each night? 1) Less than 5; 2) Between 5 -7; 3) Between 7 -9; 4) More than 9"); c. social media use ("How much time do you spend on social media each day? 1) None; 2) Less than 1 hour; 3) Up to 3 hours: 4) Between 4 and 6: 5) More than 6"); and d. time playing video/online games ("How much time do you spend playing video or online games each day? 1) None; 2) Less than 1 hour; 3) Up to 3 hours; 4) Between 4 -6; 5) More than 6").

To examine if the intervention had a significant effect on the outcomes of the study at PO1, we performed paired-sample t-tests for all the variables of the study. Next, to examine if the intervention had a significant effect on the study's variables at PO2 (compared to pre-intervention), we performed another set of paired-sample t-tests. To study changes in students' daily activities as a consequence of the lockdown measures (i.e., between PO1 and PO2), we performed another set of paired-sample t-tests for variables reporting on daily activities. Finally, to study how changes in daily habits impacted the likelihood of experiencing increased wellbeing, we created a binary variable for each of the wellbeing items and scales studied (1= the score in the wellbeing item/scale increased; 0= the score in the wellbeing item/scale did not increase) and estimated logistic regression models. Data was analyzed using the SPSS 26 and JASP 0.12.2.0.

Descriptive statistics for the variables of the study at the three time points are presented in Table 1, while Table 2 presents the intercorrelations between all studyrelated variables at the pre-intervention phase. All variables were positively correlated with each other, except for Negative Affect which showed an inverse relationship with all other variables (as expected).

Overall, the mean levels of the positive outcomes of the study increased as a result of the intervention, whereas negative affect declined post-intervention. The results (Table 3) suggest that the post-intervention increases in nine of the variables were statistically significant: MHC total, MHC emotional (hedonic), MHC social, Positive affect, MTS total, interpersonal confidence, emotional control, life control, and student life satisfaction. Effect sizes (Cohen's ds) ranged between 0.111 and 0.212. A Cohen's d smaller than .20 is considered small, between .20 and .50 is considered medium, and greater than .80 is considered large (Valladares-Neto, 2018). Thus, these effect sizes are in the small range.

In Table 4 , increases in nine of the variables were statistically significant when comparing baseline to PO2: MHC psychological (eudaimonic), Negative affect, MTS total, challenge, interpersonal confidence, emotional control, life control, student life satisfaction, and school kindness. Effect sizes (Cohen's ds) ranged between 0.139 and 0.289, and were bigger on average at PO2.

The results show that the increases in life satisfaction and four MTS variables (MTS total, interpersonal confidence, emotional control, and life control) at PO1 were sustained or grew at PO2. Positive affect and three of the MHC variables (MHC total, MHC emotional (hedonic), and MHC social) significantly increased at PO1 but reverted near to their pre-intervention levels at PO2. Interestingly, four of the variables did not increase significantly at PO1; yet, showed significant increases at PO2: MHC psychological (eudaimonic), PANAS negative affect, MTS challenge, and school kindness scale.

Further, , on average, the lockdown meant less physical activity, but more sleep, social media use, and playing video/online games. Out of those who responded both in PO1 and PO2, the numbers for these time-use variables were the following: sleep Table 6 results, reported in odds ratios (OR), shows that most of the statistically significant effects are observed for changes in hours of sleep. Compared to those who did not report sleeping more during the lockdown (i.e. PO2), those who did were three times more likely to report agreement with the statement 'My life is going well' compared to the pre-lockdown situation (i.e. PO1). They were three times more likely to report positive affect, twice less likely to report more negative affect and 4.45 times more likely to report greater emotional (hedonic) wellbeing. Statistically significant effects were absent for other activities, with a few exceptions for some specific items. For example, students who increased their physical activity in lockdown seemed more likely to report greater psychological (eudaimonic) and social wellbeing, although effects were statistically significant for three social wellbeing items only. Out of those who responded both in PO1 and PO2, these are the numbers for the time-use variables: 

This study sought to determine the effects of a PPI program on student wellbeing, while also considering the impacts of sleep, physical activity and time spent online. The COVID-19 pandemic transpired during this time, but nonetheless allowed interesting insights to emerge. For instance, students reported greater life satisfaction and decreases to negative affect (from pre, PO1 to PO2) despite experiencing a pandemic, albeit with smaller effect sizes than those presented in prior studies (Chakhssi et al., 2018; Hendriks et al., 2020; Weiss et al., 2016; White et al., 2019) . This suggests that PPIs may have counteracted at least some associated pandemic challenges. Scores on overall mental toughness and its sub-components (interpersonal confidence, emotional control, life control) increased over the two follow up time points, suggesting that coping with pandemic-related stressors may have equipped adolescents with necessary skills pertaining to resilience, which the intervention may also have reinforced. Gains in the areas of positive affect on the PANAS and MHC, overall mental health functioning and social wellbeing (i.e., social integration, contribution, growth, social acceptance, social interest) significantly increased by PO1 (prior to the pandemic). Yet, these were lost by PO2 (during the pandemic), with scores returning close to baseline. At PO2 in June, three variables which had not increased at the first post-test did, including scores on psychological wellbeing (eudaimonic; autonomy, personal growth, self-acceptance, environmental mastery, positive relations with others, purpose in life), perceptions of school kindness, and feeling in control of challenge. It is likely that teachers showed more compassion to students, impacting their perceptions. Feeling in control of challenge may be explained by the fact that students adjusted to the lockdown and/or online learning conditions, or used the PPIs to a greater degree. It may also be that the impact of the PPIs took longer to emerge, or that students included in the pre-PO2 analyses (a subset of those in the pre-PO1 analysis) were more diligent in completing all three assessments.

While these factors may not have been affected by the pandemic, studies during this time suggest that adolescents were at high risk for low life satisfaction, symptoms of depression and anxiety, and loneliness and boredom (COVID datah ub. com; Guessoum et al., 2020; Loades et al., 2020; Rodríguez-Rey et al., 2020) , although other studies showed that anxiety decreased and wellbeing, as well as sleep, increased (Mitra et al., 2021; Widnall et al., 2020) . As older students tend to score lower on measures of wellbeing, especially as their relationships with teachers weaken across adolescence and become strained during online learning (Danielsen et al., 2011; Diseth & Samdal, 2014; García-Moya et al., 2015; Moore et al., 2018; Newland et al., 2018; Rapee et al., 2019) , our results raise interesting avenues of investigation.

Mental toughness (MT) was not an explicit part of the program; yet, the use of PPIs generated increases in its components. It is possible the skills underlying the PPIs overlapped with those used in MT, as it too, aims to enable psychological resources to support positive functioning Lin et al., 2017; Papageorgiou et al., 2019) . As MT is correlated with life satisfaction, it may also tap onto perceptions relative to this factor (i.e., Crust & Clough, 2005; Dagnall et al., 2019; Gerber et al., 2013; Marchant et al., 2009) . It is even possible that the pandemic, rather than our program, brought forward the skills of MT.

In the lockdown period, students spent less time doing physical activity and more time sleeping, using social media and playing video/online games. Our data show that more screen-based activity was not associated with wellbeing. While research suggests negative effects on wellbeing (Kleszczewska et al., 2018; Marques et al., 2017; Rees, 2017; Twenge et al., 2017 Twenge et al., , 2018 , the extraordinary context may explain our results. In lockdown, the only way for students to connect with friends was through social media, which may have buffered against negative effects, as prior studies have shown (Magson et al., 2021) . Conversely, students who increased their hours of sleep and physical activity were more likely to experience greater wellbeing, also in line with previous studies (Chen et al., 2020; Kalak et al., 2014; Lai & Ma, 2020; Ness & Saksvik-Lehouillier, 2018; Wright et al., 2021; Yang & Cha, 2018) . For physical activity, effects were only found for increased psychological (eudaimonic) and social wellbeing.

Finally, our findings showed significant associations between increased sleep duration and several positive outcomes including one component of life satisfaction, as well as a significant decrease in the odds of negative affect (total score as well as sadness). The most striking observation was the association between extended sleep duration and positive mood, where the odds for the total positive affect was threefold. The odds for all positive mood states assessed, except for one (proud), were significantly elevated where the ORs ranged from 2.30 (joyful) to 3.47 (happy). Increased sleep duration was also associated with a 2.66 odds of being good at managing the responsibilities of life and a 2.10 odds of having direction/meaning in life (components of psychological (eudaimonic) wellbeing). As previous research has identified positive effects on subjective sleep quality following engagement in gratitude interventions (i.e., Alkozei et al., 2019; Boggiss et al., 2020; Jackowska et al., 2016) , it is possible that greater wellbeing derived from our PPIs may have contributed to enhanced sleep duration as Thumann et al. (2019) showed, although PPIs themselves may have contributed to greater sleep duration directly. Extra time in bed in the absence of a school commute may also have contributed.

Our study was impacted by the global COVID-19 pandemic, which altered its delivery from in-person to online. Program gains after PO1 may have been influenced by the kindness of teachers or greater sleep; equally, better relationships with parents, and less pressure to excel academically. We cannot dismiss the possibility that our results were obtained solely due to students receiving positive attention during this time (Ciarrochi et al., 2016) , particularly as good teacher-student relationships impact student wellbeing (García-Moya et al., 2015; Moore et al., 2018; Newland et al., 2018) . Further, as is often the case with school-wide programs (i.e., Mackenzie & Williams, 2018) , our lack of control group and randomization of participants make our results difficult to generalize. These are threats to the internal validity of our study, given that the switch to online learning and the pandemic also acted as confounding variables. We are still confident that the program was impactful as its outcomes were evident at PO1, although levels of missing data in PO1 and PO2 were high for most variables studied as less than half of all the participants (n= 538) responded to the questionnaire in both PO1 and PO2.

The restrictions imposed during the pandemic also significantly influenced the behavior of students; a total shutdown was experienced for several weeks whereby, as an example, electronic permissions were required to leave the home for 90 minutes per week and this was restricted to two household members for the purpose of grocery shopping only. Curfews were strictly enforced. While restrictions eased over time, the lack of ability to do anything but sleep, engage in social media and exercise should be kept in mind. The high socioeconomic status of students may also have buffered some of the negative effects generated by the restrictions and afforded them the ability to take part in more physical activity due to having a backyard or pool, for instance (i.e., Fegert et al., 2020) .

MPPI programs contribute to wellbeing; however, in the case of our study, PPIs had small effect sizes for a range of reasons described and perhaps others still unknown. Nonetheless, greater wellbeing, given its positive impacts on educational, health and social outcomes as examples, remains a worthy endeavor for schools to consider. What was more surprising in our results was the significant impact of sleep and its potential as an inexpensive intervention. Adjusting school start times, 8:30am onwards, and introducing sleep hygiene programming are policy-driven solutions that have shown positive academic and mental health outcomes (Dunster et al., 2018; Gee et al., 2019; Gruber, 2017; Hayes & Bainton, 2020; Marino et al., 2021; Orchard et al., 2020; Scott et al., 2021; Troxel & Wolfson, 2017) . We further echo findings recommending that teacher wellbeing be addressed (Lawler et al., 2017; Marquez & Main, 2021) , given its links to student wellbeing and academic performance (Harding et al., 2019; Milkie & Warner, 2011; Oberle & Schonert-Reichl, 2016) . Overall, a more systemic view of wellbeing must be promoted where MPPI programs are extended to improve the overall school climate so that the wellbeing of all stakeholders is supported (Marquez & Inchley, 2020) .

The factors leading to wellbeing needed attention prior to the pandemic and for many students, schools continue to be the only place where wellbeing needs can be met (Golberstein et al., 2020) . Our study indeed documented the effects of PPIs on student wellbeing in the UAE and given its timing, our results showed they can also be useful in trying times. However, for positive psychology to become globally relevant and locally useful, more research will contribute to the regional pool of data sorely needed and currently unavailable in Dubai (OECD, 2021), towards the development of school-based wellbeing policies. Yet, our study also highlights that schools need not make expensive interventions, attention to sleep is also compelling. As mental health concerns are set to outlive the pandemic (Brooks et al., 2020) , wellbeing instruction through the use of PPIs in the classroom, as well as sleep-promoting programs, are essential for schools to adopt if students are to thrive, perform and be well going forward. Conversation stations Authentic conversations lead to greater social trust and connections Ask the person next to you, "What's your greatest life joy?" It's deep, but helps to know people. What other meaningful positive questions have you wanted to ask? This week, we'll set up conversation stations to have more of these talks.

Mid-term report Awareness of personal positive qualities; Commit to using them more often What qualities are you using these days? From a list including honesty, kindness, persistence, etc., rate yourself from 1-10.

Can you use those in other places, with other people, and more often? Are there any you would like to improve? How?

8 Make it as bad as you can Use mental contrasting to increase realistic optimism and readiness for difficulty Stress & assignments go together. What's the worst scenario for you in this time? Exaggerate it much as you can; imagine it happens. What actions (and thoughts) could you take to fix it? If it came to this situation, would your plan work? Could you handle it? Add real solutions until you feel confident that you could.

Bad to better Normalizing negative emotions; Gaining control over negative moods Feeling low happens but there are things we can do to lessen how negative moments feel. List three things you do to go from a bad mood to better on the board. Once you've written yours, read the strategies of others and rate them to see which might work for you too. Try a new one this week as an experiment.

Week Title Description of PPI 14 See others Affirming others We all know someone who could use a boost, but get so busy we forget to send a "hello, I see you" message. Yet, being seen is a powerful validation. Who needs you to see them? Send a note to that person saying, I'm thinking of you, I see you, or whatever would make them feel they matter. Note how you feel doing it.

Strengths Spotting Finding the goodness in others; Developing awareness that others see us Remember the positive qualities list? Here's your chance to see them in others. As you move from desk to desk, where you can, comment on other's positive qualities on the list by using an example of where you saw them use it. Be real, specific and kind.

Be the weirdo Acknowledge others to boost one's sense of self; Talking to strangers We worry that strangers are well, strange. We also worry they'll think we are too. But most people are open to being talked with and pleased someone did. Go on, say hello, strike up a conversation and see whether you can make a connection and boost your networking and social skills. Was it as bad as you thought?

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The impact of a brief gratitude intervention on subjective well-being, biology and sleep

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Revisiting the empirical distinction between hedonic and eudaimonic aspects of well-being using exploratory structural equation modeling

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The association between physical activity and general life satisfaction in lower secondary school students: The role of individual and family factors

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Is time spent playing video games associated with mental health, cognitive and social skills in young children?

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A multidimensional PERMA-H positive education model, general satisfaction of school life, and character strengths use in Hong Kong senior primary school students: Confirmatory factor analysis and path analysis using the APASO-II

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Adolescents personal beliefs about sufficient physical activity are more closely related to sleep and psychological functioning than self-reported physical activity: A prospective study

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Acknowledgments We wish to thank Dubai College for its full support and collaboration in implement-