№ files_lp_4_process_2_81313
Supplementary academic material presenting methodological justification for covariate selection, regression diagnostics, statistical software used, and exploratory factor analysis results for the CES-D depression scale in a study examining oxytocin levels, HIV indicators, and perceived stress.
Document Type: Supplementary research material
Subject Area: Mental health research; HIV; depression measurement; statistical analysis
Research Topic: Associations between oxytocin levels, HIV markers, perceived stress, and depressive symptoms
Analytical Methods: Multivariate linear regression; exploratory factor analysis
Statistical Software: R
R Packages Used: dplyr; knitr; nlme; boot; ggpubr; MASS; car; lm.beta; ltm; corrplot; psych; GPArotation; lavaan; semPlot; LambertW; effects; rstanarm; bayesplot; mediation
Variables Analyzed: Age; education; sex; body mass index (BMI); CD4 cell count
Measurement Instrument: CES-D (Center for Epidemiologic Studies Depression Scale)
Sample Size: 79 participants
Key Biological Marker: Plasma oxytocin levels
Health Condition Context: HIV infection
Statistical Tests Mentioned: Shapiro–Wilk test; Cook’s Distance; variance inflation factor (VIF); correlation coefficients
Factor Model Selected: Five-factor solution for CES-D scale
Factors Identified: Depressed Affect; Positive Affect; Appetite; Cognitive Symptoms; Perceived Failure
Supplementary Tables: Correlation plot between oxytocin levels and HIV/stress markers; exploratory factor analysis loadings for CES-D
Referenced Literature: 14 academic sources in psychiatry, epidemiology, and health research
Price: 8 / 10 USD
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