Psychometric Properties of Speed Processing Ability Test: A Pilot Project

Abstract

This study investigates the psychometric properties of a Cattel-Horn-Carroll theory-based processing speed ability test. According to the theory, processing speed ability, which has three narrow abilities (i.e., perceptual speed, number facility, and rate of test taking) supports and has a significant impact on general intelligence (about 0.7). A trial was conducted involving 137 people to test the quality of 299 composed items. Item selection and test reliability estimation were based on data analysis using ITEMAN. The result shows that the tests under investigation have sufficient psychometric properties and adequate reliability.