Sunday, May 23, 2021

Irrespective of COVID, improved mood, less perceived stress were significanlty associated with some personality traits like neuroticism (lower), extraversion (higher), agreeableness (higher), and conscientiousness (higher)

Rettew DC, McGinnis EW, Copeland W, Nardone HY, Bai Y, Rettew J, et al. (2021) Personality trait predictors of adjustment during the COVID pandemic among college students. PLoS ONE 16(3): e0248895. May 17 2021. doi:10.1371/journal.pone.0248895.

Abstract: Personality traits have been found to be related to a variety of health outcomes. The aim of this study was to examine how personality traits were associated with adjustment to the COVID pandemic in college students. The sample included 484 first-year university students (76% female) attending a northeastern university who completed the Big Five Inventory (BFI) personality assessment at the beginning of a semester that was disrupted by the COVID pandemic. Using a phone-based app, students completed daily ratings of mood, perceived stress levels, and engagement in a number of health promotion activities (exercise, mindfulness, adequate sleep, etc.) throughout the semester both before and after the onset of the pandemic (e.g., a within-person longitudinal design). Results, as expected, showed that mood and wellness indices generally declined during the COVID period, although stress levels actually decreased. Further, irrespective of COVID, improved mood, less perceived stress and greater participation in health promotion activities were significantly associated with a number of personality traits including neuroticism (lower), extraversion (higher), agreeableness (higher), and conscientiousness (higher). Of primary interest, mixed-effects models were used to test how major personality traits interacted with any changes in daily ratings from the pre-COVID to COVID period. Significant interactions terms were found suggesting differential impacts of the COVID epidemic for students with low versus high levels of particular traits. Higher levels of extraversion, for example, were found to be related to decreases in mood as the pandemic progressed in contrast to those with lower extraversion, for whom there was a slight increase in mood over time. These data support the conclusion that personality traits are related to mental health and can play a role in a person’s ability to cope with major stressful events. Different traits may also be more adaptive to different types of stressors.

Discussion

This study aimed to examine the link between major personality dimensions and change in mental health functioning through the COVID pandemic in a group of college students. We utilized daily ratings of subjective mood, stress levels, and engagement in wellness activities such as mindfulness, healthy eating, and exercise obtained from a smartphone app that started before students were sent home due to COVID concerns and then continued as they completed the semester at home.

As has been reported in many studies examining the association between personality traits and various indices of well-being and functioning, we found robust associations with many of the higher-order personality traits. Lower levels of neuroticism and higher levels of extraversion were generally found to be related to improved mood, lower stress levels and more engagement in healthy activities. Higher levels of openness, agreeableness, and conscientiousness were also significantly related to better mood and more wellness engagement but were not significantly related to stress levels. Some of these significant main effects need to be interpreted with caution given the interactions found for some of these traits as levels changed between the pre-COVID and COVID period. High levels of agreeableness and conscientiousness showed particularly strong associations with better mood across the study period while higher levels of neuroticism were prominently and expectedly related to higher levels of perceived stress. High conscientiousness was significantly related to more participation in wellness activities and healthy activities. Conscientiousness refers to the tendency to be both goal oriented and to abilities that help people obtain goals such as reliability and organization. As such, this trait has often been associated with better health and well-being [23] and has been called the “most valuable psychological asset” a person can have when it comes to major personality traits [10].

The COVID pandemic also appeared to have a negative impact on our mental health indicators, although not as uniformly as we had expected. Comparing ratings between the pre-COVID and COVID period, mood and engagement in wellness activities generally decreased. Stress levels, however, significantly fell across the study period, although the magnitude of this drop was quite modest. Such a drop was hypothesized for students high in the trait of neuroticism but was found more globally. These results underscore how stressful college life can feel for some students [24]. It also may suggest some independence between mood and stress, the latter of which may be described more closely as anxiety. While mood and anxiety levels typically are found to move together–so much so that the two areas in combination are considered the core of “internalizing” problems [25], the COVID pandemic may present an important example of conditions that can separate the two domains. The college experience for many students provides engagement and relationships but, as has been well documented of late, can also be quite challenging and anxiety provoking [26]. With many exceptions, it is possible that the college environment, for those who do not find the experience overwhelming, represents an example of “good stress” that might contribute to a higher mood [27]. The COVID pandemic brought more isolation and inactivity but also some relief from the regular stresses of this environment and this may have overall depressed both mood and perceived levels of stress. Of course, it is possible that a more prolonged duration of disruption in regular life from COVID, as is now occurring, will result in perceived stress levels to rise. Further investigations with this sample and others will help reveal the long-term impact of COVID on experienced stress levels.

For the most part, associations between personality traits and mental health/wellness were preserved across the time period from before the COVID pandemic in January 2020 through the end of the semester in May. As previously mentioned, however, some interactions effects were found, suggesting a differential response to the COVID epidemic based on levels of specific traits. The dimension of extraversion was especially involved, with significant interaction effects found for mood, stress, and wellness participation. For mood, we found that those with higher levels of extraversion experienced a decrease in their mood as the COVID period progressed while mood ratings among those with lower levels of extraversion rose slightly. When it came to stress levels, however, those in the high extraversion groups felt decreased stress during the COVID period while those with lower extraversion experienced slightly more. There isn’t a straightforward interpretation of this combination of findings, but we speculate that, as hypothesized, more extraverted people might find the stimulation and challenges of busy academic life to be more rewarding. Leaving this environment for home isolation thus could have resulted in feeling less stressed but more bored and lonely, resulting in a decrease in mood. This finding partially supported our hypothesis, although it is important to note that students with higher levels of extraversion, despite having a clear decrease in mood with COVID, still reported an overall more positive mood than their low extraversion peers.

A similar, though less pronounced, pattern was found with neuroticism in which those with lower levels experienced a larger drop in mood levels with COVID compared to students with high neuroticism (although the higher neuroticism group continued to report lower mood overall). It is possible that this finding comes from a “floor effect” as students with higher levels of neuroticism had a lower mood at baseline. Alternatively, it is possible that the disruption from COVID represented a relatively bigger “loss” for those with lower levels of neuroticism.

These findings need to be interpreted with appreciation for some of the limitations of this study. First, these data were obtained from college students at a single university. As such, the generalizability of this study to other populations may be limited. Secondly, it is also not possible to prove with these data that is was the COVID pandemic and not another unmeasured factor that was responsible for any changes in the mental health ratings. Small but meaningful changes in personality have been documented in college students under “normal” conditions, although this has generally been found to occur over longer periods of time [28]. Finally, we note that both the personality and mental health assessments were obtained from self-report.

This study, however, also has some noticeable strengths. The use of daily ratings of our mental health indices may have provided a more valid assessment of these parameters over time and minimized bias inherent in more retrospective reporting. Personality assessment was also performed using a well-validated instrument based on a widely accepted and researched personality model.

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