Measurement invariance across young adults from Hong Kong and Taiwan among three internet-related addiction scales: Bergen Social Media Addiction Scale (BSMAS), Smartphone Application-Based Addiction Scale (SABAS), and Internet Gaming Disorder Scale-Short Form (IGDS-SF9) (Study Part A)

Time invariance of three ultra-brief internet-related instruments: Smartphone Application-Based Addiction Scale (SABAS), Bergen Social Media Addiction Scale (BSMAS), and the nine-item Internet Gaming Disorder Scale-Short Form (IGDS-SF9)

Background/Objective Given the negative consequences of weight bias, including internalized weight stigma, on health outcomes, two instruments—the Weight Self-Stigma Questionnaire (WSSQ) and Weight Bias Internalization Scale (WBIS)—have been developed. However, their psychometric properties are yet to be tested for Asian pediatric populations. Method:Participants aged 8 to 12 years ( N = 287; 153 boys) completed the WSSQ and the WBIS, and they were classified into either a group with overweight or a group without overweight based on self-reported weight and height. Results:Both WSSQ and WBIS had their factor structures supported by confirmatory factor analyses (CFAs). The measurement invariance of two-factor structure was further supported for WSSQ across gender and weight status. The measurement invariance of single-factor structure was supported for WBIS across gender but not across weight status. Conclusions:WSSQ and WBIS were both valid to assess the internalization of weight bias. However, the two instruments demonstrated different properties and should be applied in different situations.

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We examined the potential mediational roles of self-esteem and interpersonal relationships that link the effect of family context on psychological outcomes in 5214 junior high school students. The moderating effects of pubertal timing were also examined. Pubertal development scores were used to measure pubertal status. Separate mediational models were examined across subgroups with different pubertal timings (i.e., early puberty, on-time puberty, and late puberty). Self-esteem and interpersonal relationships mediated the association between family context and psychological consequences. Although early-maturing adolescents tended to have more psychological problems, they were usually more strongly influenced by self-esteem than were their latematuring counterparts. Self-esteem and interpersonal relationships were both important when dealing with adolescent psychological problems, particularly for those who mature early. Clinicians should be able to recognize these problems associated with pubertal transition and provide appropriate counseling with a focus on positive adaption to reduce adverse psychological and behavioral consequences.

Background/Objective: Overweight and obese children are likely to encounter negative impact on psychological well-being and quality of life (QoL). Hence, for overweight and obese children, measuring QoL could go beyond simply assessing objective medical parameters and cover their physical health, psychological well-being, and social interaction. Generic (Kid-KINDL and Pediatric Quality of Life Inventory [PedsQL]) and weight-related (Sizing Me Up) measures are two major types of QoL measurement instruments; however, little is known about the differences between them. Method: We recruited 569 3rd to 6th graders from eleven schools in Southern Taiwan. In addition to the three QoL questionnaires, the Child Depression Inventory and Rosenberg Self-Esteem Scale were applied. Results: Depression had significantly negative associations with all three QoL questionnaires. Self-esteem was only associated with Kid-KINDL. Body mass index had a significantly stronger relationship with Sizing Me Up than its relationships with PedsQL and Kid-KINDL. In other words, the items related to body size concerns in Size Me Up significantly contributed to impaired overweight/obese children’s QoL. Conclusions: The study further identified the characters and strength of these QoL measures for better suggestions on evaluating physical and psychological issues for overweight/obese children.

What is the central question of this study? Obesity is linked to cognitive deficits, elevated energy metabolic indices and low-grade systemic inflammation. Do the relationships between neurocognitive performance and the biochemical markers (e.g. energy metabolic indices and inflammatory cytokines) occur independently of factors known to be associated with neurocognitive dysfunction (i.e. cardiorespiratory fitness) in young adults? What is the main finding and its importance? Young obese adults showed poorer neuropsychological performances, aberrant neural activity and higher C-reactive protein and energy metabolic indices. The higher leptin and C-reactive protein concentrations showed a significant negative association with lower P3 amplitudes. However, leptin was the sole predictive factor, implicating hyperleptinaemia in the altered neurocognitive function observed in obesity. The present study was designed to explore the neurophysiological mechanism of visuospatial attention deficits in obese adults and to examine the relationships between neurocognitive (neuropsychological and neurophysiological) performances and the biochemical markers. Thirty obese adults and 30 healthy-weight control subjects, categorized by body mass index and percentage fat as measured with dual-energy X-ray absorptiometry, provided a fasting blood sample and performed a visuospatial attention protocol with concomitant electrophysiological recording. The obese group showed slower reaction times and smaller P3 amplitudes when performing the cognitive task. Even when controlling for the covariable of cardiorespiratory fitness, the results remained. In addition, the serum concentrations of insulin, glucose, leptin and C-reactive protein were significantly higher in the obese group relative to the control group, but not those of interleukin-6, interleukin-1β and tumour necrosis factor-α. Partial correlations adjusting for cardiorespiratory fitness showed that leptin and C-reactive protein concentrations in the obese group were negatively associated with poorer neurophysiological (i.e. P3 amplitude) performance. However, the regression analysis showed that leptin was the sole predictor of P3 amplitude in the obese group. These findings indicate that the individuals with obesity exhibited neurocognitive deficits when performing the visuospatial attention task, and serum leptin concentrations could be one of the influential factors.

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