Ricerc@Sapienza

In this study, normative data for the age-range 18–40 years have been provided for the Verbal
Judgment Test (VJT), which underpins abstract reasoning on the basis of four subtests:
“Differences”, “Proverbs”, “Absurdities” and “Classifications”. 554 participants (280 males and 274
females) were recruited and the following data were provided: means and standard deviations divided
by gender, educational level (8, 13 and 18 years) and age group (18–20 years, 21–25 years,

We investigated the relationship between verbal and visuo-spatial measures of working memory, inhibition, fluid intelligence and the performance on the Tower of London (ToL) task in a large sample of 830 healthy participants aged between 18 and 71 years. We found that fluid intelligence and visuo-spatial working memory accounted for a significant variance in the ToL task, while performances on verbal working memory and on the Stroop Test were not predictive for performance on the ToL.