Formal thought disorder (FTD) is a disruption in the flow of thought and a common feature in psychotic disorders and autism spectrum disorder (ASD). Executive dysfunction has often been associated with FTD, yet for ASD convincing evidence is lacking. This study investigated FTD and three core executive functions in 50 young children and…

By employing a concomitant variable, block designs and analysis of covariance (ANCOVA) can be used to improve the power of traditional analysis of variance (ANOVA) by reducing error. If subjects are randomly assigned to treatments without considering the concomitant variable, an experiment uses a post-hoc approach. Otherwise, an a priori approach…

This study was designed to examine Chicano and Anglo children's performance on several measures of field dependence/independence (FDI), including the Portable Rod and Frame Test (PRFT), the Children's Embedded Figures Test (CEFT), the Human Figure Drawing Task (HFDT), and the Block Design Test. Also examined was the relationship between FDI…