The Phoneme Perception Task (PPT): A Measure of Phoneme Perception in Orally Read Sentences

Abstract

Analysis of scores on the Phoneme Perception Task (PPT), a new measure of perception of phonemes in sentences, revealed an overall 75% accuracy of classification of students' group membership (56 students who never received special education services in grades 2 through 5 (non LD group) and 40 students of corresponding age, attending a school for students with learning disabilities (LD group). Concurrent validity was determined using the SCAN: A Screening Test for Auditory Processing Disorders (r =.39) (Keith 1986) and the Test of Written Language-2 (TOWL-2) Spontaneous Writing Quotient (Hammill & Larsen, 1988) ( r =.48). Interjudge reliability (.97) indicated strong observer agreement. Internal consistency (alpha = .74) was considered to be reduced by specific items that need revision prior to further study.