Cheng K Fred Wen
Biographic Data
| ID | 131825 |
|---|---|
| NAME | Cheng K Fred Wen |
| GIVEN NAMES | Cheng K Fred |
| FAMILY NAME | Wen |
| SIGNATURE | WEN C K F |
| AFFILIATIONS | University of Southern California |
| ORCID | 0000-0002-2538-0439 |
| VERIFIED | Yes |
| TOTAL WORKS | 4 |
| TOTAL CITATIONS | 0 |
| WORKS AS AUTHOR | 4 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 2017 |
| LATEST PUBLICATION YEAR | 2024 |
| H-INDEX | 0 |
A population-based investigation of participation rate and self-selection bias in momentary data capture and survey studies
Participant selection bias is of concern to researchers conducting surveys of all types. For momentary data capture studies, such as Ecological Momentary Assessment, the level of burden associated with these techniques and the possibility of low uptake rates makes the concerns especially salient. This study invited 3,000 individuals to participate in a study of health and mood and recorded the uptake rates at various points in the process. Respon…
Accuracy of a Photo-based Smartphone Application to Assess Salivary Cortisol Sampling Time in Adolescents
Accurate assessment of saliva sampling time is essential for studies that collect cortisol sample in ambulatory settings. This study examined the sampling time assessed by user-submitted photos via a mobile application (ZEMI) compared with MEMSCapsTM. Intra-class correlation coefficient (ICC) of the time differences between when the 16 adolescents in the study were prompted to collect the sample and (1) when the MEMSCapsTM was opened (TimeM), and…
The Acute Relationship between Affective States and Stress Biomarkers in Ethnic Minority Youths
Background : Whether affective states acutely predict the hypothalamic-pituitary-adrenal (HPA) axis activities and whether energy balance-related behaviors moderate the affect-HPA axis relationship in obese youths are not well-understood. Methods : 87 mostly obese (94.3% obese) minority adolescents (mean: 16.3 ± 1.2 years old; 56.8% Latino and 43.2% African American) participated in a randomized crossover trial in an observation laboratory, where…
The Role of Assimilating to the US Culture and the Relationship Between Neighborhood Ethnic Composition and Dietary Intake Among Hispanic Youth
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The Role of Assimilating to the US Culture and the Relationship Between Neighborhood Ethnic Composition and Dietary Intake Among Hispanic Youth
The Acute Relationship between Affective States and Stress Biomarkers in Ethnic Minority Youths
Background : Whether affective states acutely predict the hypothalamic-pituitary-adrenal (HPA) axis activities and whether energy balance-related behaviors moderate the affect-HPA axis relationship in obese youths are not well-understood. Methods : 87 mostly obese (94.3% obese) minority adolescents (mean: 16.3 ± 1.2 years old; 56.8% Latino and 43.2% African American) participated in a randomized crossover trial in an observation laboratory, where…
Accuracy of a Photo-based Smartphone Application to Assess Salivary Cortisol Sampling Time in Adolescents
Accurate assessment of saliva sampling time is essential for studies that collect cortisol sample in ambulatory settings. This study examined the sampling time assessed by user-submitted photos via a mobile application (ZEMI) compared with MEMSCapsTM. Intra-class correlation coefficient (ICC) of the time differences between when the 16 adolescents in the study were prompted to collect the sample and (1) when the MEMSCapsTM was opened (TimeM), and…
A population-based investigation of participation rate and self-selection bias in momentary data capture and survey studies
Participant selection bias is of concern to researchers conducting surveys of all types. For momentary data capture studies, such as Ecological Momentary Assessment, the level of burden associated with these techniques and the possibility of low uptake rates makes the concerns especially salient. This study invited 3,000 individuals to participate in a study of health and mood and recorded the uptake rates at various points in the process. Respon…
Medicine (4 works) · Internal Medicine (3 works) · Psychology (3 works) · Behavioral Health and Interventions (2 works) · Demography (2 works) · Saliva (2 works) · Stress Responses and Cortisol (2 works) · Added sugar (1 work) · Adipose Tissue and Metabolism (1 work) · Affect (linguistics (1 work)