Issues and challenges in international doctoral education

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/88184/1/ketefian-issues_challenges_international_doctoral.pd

Self-efficacy, Neighborhood Walking, and Fall History in Older Adults

This cross-sectional study examined the association of self-efficacy with neighborhood walking in older adult (mean age = 76.1, SD = 8.34) fallers (n = 108) and nonfallers (n = 217) while controlling for demographic characteristics and mobility. Hierarchical multiple regression indicated that the full model explained 39% of the variance in neighborhood walking in fallers (P \u3c .001) and 24% in nonfallers (P \u3c .001). Self-efficacy explained 23% of the variance in fallers (P \u3c .001) and 11% in nonfallers (P \u3c .001). Neighborhood walking was significantly associated with self-efficacy for individual barriers in both groups. Self-efficacy for neighborhood barriers trended toward significance in fallers (β = .18, P = .06). Fall history did not moderate the relationship between self-efficacy and neighborhood walking. Walking interventions for older adults should address self-efficacy in overcoming individual walking barriers. Those targeting fallers should consider addressing self-efficacy for overcoming neighborhood barriers

Intervención para reducir riesgo en conductas sexuales de adolescentes: un ensayo aleatorizado y controlado Intervention to reduce adolescents’ sexual risk behaviors: a randomized controlled trial

OBJETIVO: Determinar la eficacia de una intervención conductual-educativa diseñada para disminuir las conductas sexuales de riesgo de VIH/SIDA y embarazos no planeados de adolescentes mexicanos. MATERIAL Y MÉTODOS: Ensayo controlado aleatorizado con cuatro seguimientos en un año; 832 adolescentes reclutados de escuelas preparatorias, entre 14 y 17 años, se asignaron aleatoriamente al grupo experimental o al control. La intervención, de seis hrs. de duración, aplicó estrategias de aprendizaje activo. El estudio se realizó en Monterrey, México, de 2002 a 2005. RESULTADOS: De acuerdo al análisis GEE, no hubo diferencia en las intenciones de tener relaciones sexuales, pero sí mayor nivel de intenciones de usar condón y anticonceptivos (diferencia de medias 0.15 y 0.16, IC 95%) en el grupo experimental comparado con el control. Variables teoréticas como creencias sobre control fueron mediadoras de la intervención. CONCLUSIONES: La intervención conductual representa un importante esfuerzo en la promoción de conductas sexuales seguras en adolescentes mexicanos.<br>OBJECTIVE: To test the efficacy of a behavioral intervention designed to decrease risk sexual behaviors for HIV/AIDS and unplanned pregnancies in Mexican adolescents. MATERIAL AND METHODS: Randomized controlled trial with four follow ups; 832 adolescents recruited from high schools, age 14-17, were randomly assigned to the experimental or control group. The six hour intervention used active learning strategies, and was delivered in two sessions on two consecutive Saturdays. The study was carried out in Monterrey, Mexico, 2002-2005. RESULTS: GEE analysis indicated no differences in sexual relationships’ intentions between the two conditions, however, the experimental group had higher intentions to use condoms and contraceptives (mean differences 0.15 and 0.16, CI 95%) in the next three months, as compared with the control group. Theoretical variables, such as control beliefs, were significant mediators of the intervention. CONCLUSIONS: The behavioral intervention represents an important effort in promoting safe sexual behaviors among Mexican adolescents