The objective of this study was to evaluate the reliability and validity of the Geriatric Depression Scale in its 15-item version (GDS-15) in Mexican older adults. Participants included 1178 older adults between the ages of 60 and 94 ( M = 69.16, SD = 7.69); 53.9% were women and 55.8% were married or with a partner. They completed the GDS-15, a subjective well-being scale, and a quality-of-life questionnaire. A Kuder–Richardson coefficient of .80 was obtained, which indicates an acceptable internal consistency of the GDS-15, as well as evidence of divergent validity with significant correlations of −.783 with subjective well-being and −.569 with quality of life, in addition to concurrent validity when discriminating between participants with low scores from those with high scores of depressive symptoms. The need for a simple screening tool such as the GDS-15 that helps in the identification of depressive symptoms in Mexican older adults is underlined.
Measurement model of an instrument of sources of
Self-efficacy for Mathematics to the Mexican population and to test it, as well
as the invariance of the measurement model in men and women.
The aim of the study was to adjust the measurement model of an instrument of sources of Self-efficacy for Mathematics to sample of university students from Northeast of Mexico and the sex measurement invariance. A second-order modeling was performed, which shows convergent and discriminant validity, which corresponds to the original Bandura theory of self-efficacy and contains four factors: experience in mastery, social persuasion, vicarious learning, and physiological state (emotional activation). There was adequate goodness of fit of the model in the confirmatory analysis. The advantages of the use of this instrument are discussed for its simplicity and ease of applications, qualification, and interpretation, to be used by teachers, tutors, and advisors of mathematics.
Introduction. Adolescents who use drugs present several health problems, including criminal behavior. The Antisocial Process Screening Device (APSD) is a test that evaluates current conduct disorders in adolescents. Objective. This research carried out a cross-cultural adaptation of the APSD on Mexican population. Method. The original version of the APSD was translated into Mexican Spanish. The final version was administered to 1 070 adolescents (958 students, 72 with minor faults, and 40 with criminal behavior) who completed the APSD and the ENCODE, the National survey on drug use. We computed correlations and regression models between APSD and ENCODE. We carried out a multivariate analysis to compare samples and quantity of drugs. Finally, we fitted the two-and three-factor models of the APSD with a CFA. Results. The APSD scores correlated significantly with all of the ENCODE variables. In the multivariate analysis, the variable quantity of drugs was significant to rise the APSD score (F [3 847] = 7.53, p = .000). The CFA with three factors had the best fit. Reliability analysis suggests acceptable internal consistency (α = .79). Discussion and conclusion. Our results confirmed that the Mexican Spanish version of the APSD has good psychometric properties to be used in future research.
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