Is TIB – Test Breve d’Intelligenza – a good measure of IQ’s?

SUMMARY. The Test d’Intelligenza Breve (TIB) is an Italian test modelled on the well-known NART test. The aim of the study was to investigate whether performances on TIB, correlate with general intellectual skills in Italian participants. A large group (N = 840) of healthy young adults was given the TIB and the Italian full scale version of the WAIS-R. Analyses focused on the comparison between TIB and each of the subtests of the WAIS-R in classifying the predicted and the actual IQ. Over- all, results showed that TIB moderately predicts Verbal IQ and Full Scale IQ but it dramatically fails in the case of the Per- formance IQ. Therefore, the results undermine the usefulness of TIB in estimating IQ. Results also brought up arguments on the use of the short test in the assessment of IQ in traumatic brain injury patients.