{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T08:55:55Z","timestamp":1777884955491,"version":"3.51.4"},"reference-count":27,"publisher":"SAGE Publications","issue":"1","license":[{"start":{"date-parts":[[1992,8,1]],"date-time":"1992-08-01T00:00:00Z","timestamp":712627200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Percept Mot Skills"],"published-print":{"date-parts":[[1992,8]]},"abstract":"<jats:p>The present study examined the performance of 78 students with learning disabilities and 71 normally achieving students in regular Form 1 (Grade 6) classes on three validity indexes of the Perception of Ability Scale for Students, a measure of academic self-concept. The three indexes assess consistency of responding, negative or positive response biases, and misrepresentation of self-perceptions in terms of unrealistic perceptions of perfection in school. Analysis showed that learning disabled students obtained significantly lower Full Scale scores than the normal students, but no significant differences appeared on the three validity indexes. Users of the test can be confident that learning disabled students respond to items in as valid a manner as other students. Having specific learning problems in school should not interfere with response patterns on this scale.<\/jats:p>","DOI":"10.2466\/pms.1992.75.1.27","type":"journal-article","created":{"date-parts":[[2011,8,31]],"date-time":"2011-08-31T19:03:26Z","timestamp":1314817406000},"page":"27-34","source":"Crossref","is-referenced-by-count":1,"title":["Performance of Students with Learning Disabilities on Validity Indexes of the Perception of Ability Scale for Students"],"prefix":"10.1177","volume":"75","author":[{"given":"James W.","family":"Chapman","sequence":"first","affiliation":[{"name":"Massey University"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Frederic J.","family":"Boersma","sequence":"additional","affiliation":[{"name":"University of Alberta"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[1992,8,1]]},"reference":[{"key":"bibr1-pms.1992.75.1.27","doi-asserted-by":"publisher","DOI":"10.1177\/002221948601900707"},{"key":"bibr2-pms.1992.75.1.27","volume-title":"Manual for the Perception of Ability Scale for Students","author":"Boersma F. 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