The Chinese Adolescent Cohort Study: Design, Implementation, and Major Findings

The importance of diet quality on children's growth is being increasingly recognized. The Chinese Adolescent Cohort (CAC) is a longitudinal cohort study to comprehensively investigate the health impacts of nutritional factors on child growth. From 2013 to 2018, 6,967 children aged 6–8 years have been recruited from 23 primary schools in Sichuan, Guizhou, and Chongqing, which have been planned to be followed up annually until their age of 15 years. Regular assessments included the measurement of height, weight, waist circumference, and skinfold thicknesses; pubertal development was examined by trained investigators according to Tanner stages; dietary intake was obtained by three 24-h recalls and food frequency questionnaire; validated questionnaires were used to estimate socio-demographic characteristics, physical activity, and sedentary behaviors. Findings from the CAC baseline and the first follow-up data suggested that higher protein intake among girls and unhealthy eating habits among children might increase the risk for childhood obesity. Also, higher intakes of grain and meat and lower overall diet quality and intakes of dietary fiber and tuber might be associated with advanced pubertal development. Those results indicated that the CAC study could contribute to the development of strategies for optimizing Chinese children's health.

Psychometric Performance of Resilience Scale for Chinese Adolescent (RSCA) for Undergraduates in Guangdong, China

To analyze the psychometric performance of Resilience Scale for Chinese Adolescent (RSCA) for undergraduates in Guangdong. Stratified random sampling method was used to select 1628 undergraduates from 7 colleges in Guangdong. RSCA and Academic Burnout Scale for Chinese Undergraduates (ABSCU) were used to investigate them. Cronbach's αcoefficient and split-half reliability were used to analyze the internal consistency of RSCA. Convergent validity, discriminant validity, factor analysis and criterion validity were used to evaluate its validity. Celling and floor effect were used to analyze its sensitivity. Cronbach's α coefficient of the total questionniar, 2 domains and 5 factors were0.72-0.86, which met the requirements of the group comparison. Spearman-Brown split-half coefficient of the total questionniar, 2 domains and 5 factors were 0.71-0.89. The calibration success rate of convergent and discriminant validity of 5 factors were all 100%. The calibration success rate of convergent and discriminant validity of 2 domains were all above 86.7%. Five principal components obtained from 27 items, witha cumulative variance contribution rate of48.79% and two principal components obtained from 5 factors, withacumulative variance contribution rateof 65.23%,which basically metthe theoretical conception of RSCA. The total score of RSCA significantly predicted the total score of ABSCU (Radj2=0.158, P<0.001). The total score, scores of 2 domains and 5 factors of RSCA were all normal distribution, without any celling or floor effect. The psychometric performance of RSCA for undergraduates in Guangdong were valid and reliable.

Association of Nighttime Sleep Duration with Depressive Symptoms and Its Interaction with Regular Physical Activity among Chinese Adolescent Girls

Depression has become a major mental health concern among adolescents globally, and the relationship between depressive symptoms and nighttime sleep duration among adolescent girls remains unclear. This study aimed to examine the association between nighttime sleep duration and depressive symptoms among Chinese adolescent girls. This cross-sectional study, conducted in 2018, included 4952 girls aged 10–19 years from the eastern, central, and western regions of China. Depressive symptoms were assessed by the Patient Health Questionnaire-9, and categorized into depressive symptoms and non-depressive symptoms. Logistic regression models were used to estimate the odds ratios (ORs) of depressive symptoms. After adjustment for covariates, adolescent girls with a nighttime sleep duration of <7 h/night (OR = 2.28, 95% CI: 1.76–2.95) and 7 h/night (OR = 1.82, 95% CI: 1.48–2.24) were associated with increased risk of depressive symptoms, compared to those with a sleep duration of 8 h/night. An interaction between nighttime sleep duration and regular physical activity on the risk of depressive symptoms was observed (p for interaction = 0.036). Among both girls with and without regular physical activity, a sleep duration of <7 h/night was associated with increased odds of depressive symptoms, and the magnitude of the ORs among girls with regular physical activity was lower than those without regular physical activity. This study found a significant association of short nighttime sleep duration with increased risk of depressive symptoms, and demonstrates the importance of maintaining adequate nighttime sleep duration and ensuring regular physical activity in improving depressive symptoms among adolescent girls.

Father-Child Conflict and Chinese Adolescent Depression: A Moderated Mediation Model

To investigate the effects of father-child conflict and regulatory emotional self-efficacy (RESE) on Chinese adolescent depression, 654 middle-school students were measured. The results showed that: (1) Father-son conflict was significantly lower than father-daughter conflict, girls’ depression was significantly higher than that of boys, and boys’ RESE and self-efficacy in regulating negative emotions (NEG) were significantly higher than that for girls, but there was no significant difference between boys and girls in self-efficacy in expressing positive emotions (POS). (2) Father-child conflict was significantly positively associated with Chinese adolescent depression. Father-child conflict was negatively correlated with RESE, and its two dimensions. Both POS and NEG played a partial mediating role in the relationship between father-child conflict and adolescent depression. (3) Gender only regulated the relationship between NEG and adolescent depression. Compared to boys, girls are more affected by depression at the low level of NEG.

Physical Exercise and Psychological Distress: The Mediating Roles of Problematic Mobile Phone Use and Learning Burnout among Adolescents

Psychological distress among adolescents adversely affects their development and negatively impacts them later in life. The aim of the present study was to determine whether an association exists between physical exercise and psychological distress and to explore the roles of problematic mobile phone use and learning burnout with respect to this association. A total of 2077 Chinese adolescents were evaluated by using the Physical Exercise Questionnaire, the Self-rating Questionnaire for Adolescent Problematic Mobile Phone Use, the Learning Burnout Questionnaire, and the Depression Anxiety Stress Scale-21. A serial multiple mediation model was constructed using the SPSS PROCESS macro. The results showed that physical exercise was negatively associated with psychological distress in this Chinese adolescent population. Serial multiple mediation analysis revealed that problematic mobile phone use and learning burnout both independently and serially mediated the association between physical exercise and psychological distress. These findings provide evidence suggesting that increased attention should be given to problematic mobile phone use and learning burnout when establishing and implementing specific strategies that leverage greater participation in physical exercise to decrease psychological distress in adolescents.

“华文水平测试” 雏形阶段的效度验证及改进

“Test of Chinese as a Heritage Language” is developed to test the Chinese proficiency of overseas Chinese adolescents. Overseas Chinese adolescent is a special group which is different from ordinary foreign Chinese learners. There is no a standardized Chinese proficiency test for this group until now. Guided by argument-based approach to validation, the overall design of the test and the test data are analyzed. The validity of the test is systematically demonstrated by qualitative and quantitative methods from many aspects, and the results of validity demonstration further feeds back the improvement of the test.

An Ecological Preventative Approach to Adolescent Psychology and Youth Mental Health Needs in China

Adolescent psychology and mental health needs in China are part of an interdisciplinary area of research. In this area of research, macro and micro processes are closely linked; biological, cultural, and socio-structural influences tightly intertwined; and patterns identified in other societies fall apart due to the impact of powerful societal forces on individual psychology. As a result, there has been a fundamental and long-lasting split between the idea that “Chinese adolescent psychology” should be a distinctive science within China, addressing issues specific to the circumstances of Chinese children and families, and the argument that it should contribute to a universal theory of human development by documenting its applications to Chinese societies. The problem of the first idea lies in its assumption of cultural relativism or the incommensurability of the human experience of growing up in particular sociocultural contexts. In contrast, the problem of the second argument lies in its failure to ask what is “universal,” when a universal theory is applicable to China, and when it may not be. Arguably, adolescents in all cultures carry vulnerabilities and strengths as they go through the process of major biological and psychological transitions. Certain psychosocial needs, such as the needs for self-exploration, quality peer relationship, and continuous guidance and support from adults, are shared by adolescents across the world, albeit through different forms. When their basic needs are neglected by ideology-driven policies and practices that are carried to an extreme extent, youth mental health is seriously threatened. It is important for researchers not only to go beyond the dichotomous view of the field by taking an ecological approach and multidisciplinary perspectives to investigate the salient issues in adolescent psychology and mental health needs in their specific sociocultural context, but also to consider their broader implications for understanding universally relevant questions about success and sacrifice in human and social development.

Differences between Chinese Adolescent Immigrants and Adolescent Non-Immigrants in Hong Kong: Perceived Psychosocial Attributes, School Environment and Characteristics of Hong Kong Adolescents

Although the impact of immigration on adolescent developmental outcomes has received extensive scholarly attention, the impact of internal migration, particularly in the Chinese context, on adolescents’ psychosocial development has not been scientifically investigated. This study examined whether mainland Chinese adolescent immigrants (N = 590) and adolescent non-immigrants (n = 1798) differed on: (a) psychosocial attributes indexed by character traits, well-being, social behavior, and views on child development, (b) perceived school environment, and (c) perceptions of characteristics of Hong Kong adolescents. Consistent with the healthy migration hypothesis, Hong Kong adolescents and mainland Chinese adolescent immigrants did not differ on most of the outcomes; Chinese adolescent immigrants showed higher perceived moral character, empathy, and social trust than did Hong Kong adolescent non-immigrants. Chinese adolescent immigrants also showed more favorable perceptions of the school environment and moral character, social trust and social responsibility of adolescents in Hong Kong. This pioneer Chinese study provides support for the healthy immigration hypothesis (immigration paradox hypothesis) but not the immigration morbidity hypothesis within the specific sociocultural context of Hong Kong in China.