Measuring Impulsivity in Greek Adults: Psychometric Properties of the Barratt Impulsiveness Scale (BIS-11) and Impulsive Behavior Scale (Short Version of UPPS-P).

Introduction: The aim of the present study was to validate the Barratt Impulsiveness Scale (BIS-11th version) scale as well as the short version of the Impulsive Behavior Scale (UPPS-P) in a population of Greek young adults. Secondly, we aimed at validating the BIS-11 in older adults.

Methods: 167 (Group 1) university students completed the Greek version of the BIS-11 (BIS-11-G) and the UPPS (UPPS-P-G) scales.

Comparing the latent structure of Raven's educational coloured progressive matrices among young children and older adults: A preliminary study.

Objective: The aim of the present study was the comparison of the general cognitive ability (g) between young children and older adults through the investigation of the latent structure qualitative changes in [R] Educational Coloured Progressive Matrices (CPM) from age to age, using Confirmatory Factor Analyses (CFA) and testing a conventional unidimensional model.

Method: The sample consisted of 42 kindergarten and 56 elementary school students (age range: 5-8 years) and 118 new-old adults and 27 old-old adults (age range: 61-88 years). The participants' cognitive abilities were examined in: (a) the Raven's Educational CPM test, and (b) the Mini-Mental State Examination (MMSE).