Preliminary Validation of a Free

The concept of intelligence as a measurable trait of intellectual function continues to be an important issue in psychology. Traditionally, a core field of differential psychology and widely employed in applied settings, it is also important in various research fields. Here, I describe development of a new assessment of general intelligence of adults that has no language component and can be administered in about 10 minutes. A total sample of 176 adult participants, from various settings, was assessed with a set of matrix tasks that involved either visuospatial (fluid) or semantic (crystallized) reasoning. The internal consistency was acceptable (α？=？.748), and there was good four-week test–retest reliability (r？=？.931). Concurrent validity was demonstrated by a high correlation between the new test and the (seven-subtest version) Wechsler Adult Intelligence Scale-IV (WAIS-IV) scores (r？=？.889). A principal component analysis also suggested that the new test measures the same latent construct as the WAIS-IV—thought to be general intelligence. Predictive validity was shown in a subsample of 60 undergraduates by a medium-sized correlation between test scores and grade point average data (r？=？.396). These preliminary results suggest that the Matrix Matching Test may be a useful research tool