Interrater reliability of Alberta Infant Motor Scale in term and preterm born infants between 10 to 16 months age from Talca province - Chile

Purpose: To examine the ‘interrater reliability’ of the Alberta Infant Motor Scale (AIMS) in term and preterm born infants between 10 to 16 months age from Talca province, Maule Region - Chile. Subjects: 115 infants between 10 to 16 months age were incorporated to the study; 95 term born infants were attended in the local Health Centre in Talca City, and 20 preterm infants belonged to the Premature Infants Follow-Up Programme of Talca Regional Hospital. Methods: The motor behaviour of each infant was recorded and later it was assessed by two trained assessors using AIMS. It was obtained the total AIMS’ score and also from prone, supine, seated, and stand subscales. For ‘interrater reliability’ analysis it was used the Intraclass Coefficient of Correlation (ICC), the Standard Error of Measurement (SEM) and 95% limits of agreement. Results: The obtained ICC for the total scores AIMS were major than 0.94 (p<0.0002) for term and preterm born infants. The SEM of total scores was less than 3.1 points, higher than what was found in other similar studies. The 95% limits of agreement were +5.3 to -4.1 points and +7.7 to – 3.9 points in term and preterm born, respectively, revealing ‘interrater agreement’. Conclusion: The AIMS showed adequate ‘interrater reliable’ levels when was applied in Chilean term and preterm born from 10 to 16 month’s age.

Propiedades psicométricas de la versión al español del cuestionario “Barriers to Being Active Quiz”, entre estudiantes universitarios de Colombia

Objetivo: El cuestionario Barriers to Being Active Quiz (BBAQ), indaga las barreras para ser físicamente activo. El cuestionario fue traducido al español por el mismo equipo que desarrolló la versión inglésa original, pero carece de estudios de validez en la versión española. El objetivo de esta investigación fue evaluar las propiedades psicométricas del BBAQ (en la versión completa de 21 ítems), centrándose en la fiabilidad y validez. Material y métodos: Un total de 2.634 (1.462 mujeres y 1.172 varones; 18-30 años de edad) estudiantes universitarios completaron el cuestionario BBAQ-21. El alfa de Crombach se estimó como indicador de consistencia interna. El coeficiente de correlación intra-clase (CCI) y el grado de acuerdo se calcularon para evaluar la estabilidad temporal con un periodo de 7 días entre ambas administraciones como estimadores de la reproducibilidad. Se aplicó un análisis factorial exploratorio (AFE) y confirmatorio (AFC) para analizar la validez del BBAQ-21 ítems. Resultados: El BBAQ-21 mostró valores de un alfa de Cronbach entre 0,812 y 0,844 y un CCI entre el 0,46 y 0,87. El porcentaje de acuerdo por todos los conceptos individuales varió de 45 a 80%. El AFE determinó cuatro factores que explicaron el 52,90% de la varianza y el AFC mostró moderadas cargas factoriales. Conclusiones: Los resultados obtenidos en este cuestionario avalan la utilización de este instrumento con este tipo de muestra, desde el punto de vista de la fiabilidad y validez. El BBAQ-21 está disponible para evaluar las barreras para la actividad física en América Latina.

Beyond the mincer equation: the internal rate of return to higher education in Colombia

In order to present an estimation of the Internal Rate of Return (IRR) to higher education in Colombia we take advantage of the methodological approach provided by Heckman, Lochner and Todd (2005). Trying to overcome the criticism that surrounds interpretations of the education coefficient of Mincer equations as being the rate of return to investments in education we develop a more structured approach of estimation, which controls for selection bias, includes more accurate measures of labor income and the role of education costs and income taxes. Our results implied a lower rate of return than the ones found in the Colombian literature and show that the Internal Rate of Return for higher education in Colombia lies somewhere between 0.074 and 0.128. The results vary according to the year analyzed and individual’s gender. This last result reinforces considerations regarding gender discrimination in the Colombian labor market.