Strategic item selection to reduce survey length: Reduction in validity?

The practical constraints of conducting rigorous research in applied settings often limit the ability to include well-validated, but lengthy, measures in survey designs. In the current study we tested the utility of using a strategic item selection process to alleviate this issue. We evaluated the measurement and structural model fit of items selected using a strategic item selection format and assessed the predictive validity of those abbreviated scales. We also compared fit and predictive validity to the full version item sets to assess the comparability of the abbreviated scales. Results indicated that measurement models and structural models for the a priori items produced similar fit when compared with full version items across both measures. When comparing the proportion of variance explained in the criterion, there were no differences between the strategically selected items and the full versions of the scales. We conclude that the a priori selection of items based on previous research may be a useful technique for developing short measures of psychological constructs that mitigate practical, analytical, and methodological issues associated with lengthy surveys.