Validación de la prueba de memoria episódica de repetición de la Universidad del Sur de California (USC-REMT) / Validation of the University of Southern California Repeatable Episodic Memory Test

Background: Memory is affected differently with the passage of time; specifically, episodic memory presents a clear decline. There is a relationship of this memory impairment and degenerative and psychiatric diseases. Aim: To determine the reliability and validity of the University of Southern California Repeatable Episodic Memory Test (USC-REMT) in a sample of Chilean adults. Material and Methods: The instrument was administered to 178 subjects living in the Metropolitan Region of Santiago. The sessions were individual, during the morning, lasting approximately 15 minutes. Results: The ANOVA indicates that subjects over 61 years old had lower scores in the test than their younger counterparts. There was an inverse correlation between age and success in "Free recall" (r =- 0.570), "Recognition indicating yes-no" (r = -0.412) and "forced-choice recognition" (r =- 0.371). Regression analysis showed that age explained 32.1 percent "free recall" variance. The three components were grouped into a single factor. Conclusions: The USC-REMT meets the criteria for validity and reliability to be applied for clinical and research purposes.

Validez y confiabilidad del índice de satisfacción vital (LSI-A) de Neugarten, Havighurst & Tobin en una muestra de adultos y adultos mayores en Chile / Validity and reliability of the Neugarten, Havighurst & Tobin's life satisfaction índex (LSI-A), in a sample of adults and older adults in Chile

Se presentan los resultados obtenidos en la estimación de la confiabilidad y la validez del índice de Satisfacción Vital (LSI-A) de Neugarten, Havighurst & Tobin (1961,1996). La muestra estuvo constituida por 473 adultos de 30 a 75 años (hombres y mujeres) de la Región Metropolitana de Santiago de Chile, distribuidos en tres niveles de ingreso, tres grupos de edad y tres niveles de escolaridad. Se estimó la validez de contenido, concurrente y de constructo del instrumento, definiendo 5 factores que explican el 50.62 por ciento de la varianza. La confiabilidad con alpha de Cronbach fue de 0.80 para la muestra completa, el índice varió entre 0.77 a 0.83 según edad, entre 0.77 y 0.81 según nivel educacional y entre 0.74 y 0.83 según nivel de ingreso; no se observaron variaciones según sexo (0.80).

The findings of a research aimed to estimate reliability and validity of The Life Satisfaction index (LSI-A) of Neugarten, Havighurst & Tobin (1961; 1996) are presented. The sample consisted of 473 adults from 30 to 75 years (male and female) from Metropolitan Region of Santiago, Chile, distributed into three levels of income, age groups and educational levels. The content, concurrent and construct validity of the instrument was estimated, defining five factors accounting for 50.62 percent of the variance. The reliability with Cronbach's alpha was 0.80 for the full sample, the index ranged between 0.77 to 0.83 depending on age, between 0.77 and 0.81 according to educational level and between 0.74 and 0.83 depending on income level, no changes were observed by sex (0.80).