This paper provides an analysis of the effects of attrition and non-response on employment and wages using the Canadian Survey of Labour and Income Dynamics. We consider a structural model composed of three freely correlated equations for non-attrition/response, employment and wages. The model...

This paper focuses on the predictive validity of the upper secondary grade point average (GPA), when used as selection instrument to higher education. The purpose of the paper is to find out if the predictive strength of the GPA is affected by time, here measured as the time that has passed...