title: Leiter-R versus developmental quotient for estimating cognitive function in preschoolers with pervasive developmental disorders.
abstract: The utility of the developmental quotient (DQ) obtained with the Psychoeducational Profile Revised (PEP-R) was assessed as a means of estimating cognitive ability in young children with pervasive developmental disorders. Data from the PEP-R were analysed in a sample of 44 children aged from 2.0 to 5.9 years (mean 3.46 ± 1), 13 with an autistic disorder and 31 with a pervasive developmental disorder not otherwise specified. DQ scores were compared with scores from the Leiter International Performance Scale Revised-Visualization and Reasoning Battery (Leiter-R) in the same 44 children. Overall and domain DQs on the PEP-R were significantly correlated with Leiter-R scores. This study suggests that DQ scores obtained from the PEP-R in preschool children with pervasive developmental disorders may be a viable alternative to the Leiter-R as an assessment tool.
authors.affiliation: Child Neurological and Psychiatric, Unit, Department of Neurological and Psychiatric Sciences.
authors.forename: Claudia
authors.initials: C
authors.lastname: Portoghese
authors.forename: Maura
authors.initials: M
authors.lastname: Buttiglione
authors.forename: Andrea
authors.initials: A
authors.lastname: De Giacomo
authors.forename: Mariaelena
authors.initials: M
authors.lastname: Lafortezza
authors.forename: Paola A
authors.initials: PA
authors.lastname: Lecce
authors.forename: Domenico
authors.initials: D
authors.lastname: Martinelli
authors.forename: Vito
authors.initials: V
authors.lastname: Lozito
authors.forename: Lucia
authors.initials: L
authors.lastname: Margari