Effects of aptitudes, strategy training, and task facets on spatial task performance.

A pilot study, with 8 high school students, demonstrated that 3 item characteristics accounted for most of the variation in item difficulty in a paper-folding task: number of folds, number of obscured folds, and number of asymmetric folds. Retrospective reports suggested that Ss employed 2 strategies when attempting to solve these items: a visualization strategy and an analytic strategy. In the main experiment, these 2 strategies were demonstrated via motion picture models; 24 Ss received visualization training, and 24 received analytic training. Training effects of the demonstration films were compared with a performance feedback condition given to 8 Ss. All Ss performed 74 paper-folding items and 60 surface development transfer items following treatment. Error and latency data suggested that the treatments affected strategy selection and efficiency on both tasks. Treatment effects depended on item characteristics and response mode as well as on Ss' fluid-analytic/visualization and verbal abilities, as assessed by the Concept Mastery Test, WAIS Vocabulary test, and Raven Progressive Matrices. Sex differences were also noted, with verbal ability being important in the performance of females but not males. Implications for a process theory of human abilities are discussed. (33 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)