In this study, the effectiveness of the keyword mnemonic method was compared with that of the direct instruction method for teaching vocabulary words to fourth through sixth graders. Subjects were developmentally handicapped, learning disabled, or mentally retarded, aged 124 to 167 months. Acquisition of vocabulary words was measured by definition, sentence interpretation, and forced-choice questions. Results suggest that the keyword strategy may be too difficult for primary-grade handicapped learners to use.In many studies, it has been found that mnemonic strategies enhance the learning and memory performance of normal , gifted, and handicapped students. One such strategy is an adaptation of Atkinson's (1975) keyword method, originally used to facilitate college students' learning of Russian vocabulary. The keyword method involves three steps. First, the content to be learned is recoded into a keyword that sounds like the word to be learned. For instance, Scruggs, Mastropieri, and Levin (1985) recoded the vocabulary word ranid to the keyword rain . Second, the learner sees an interactive picture relating the new word to the keyword. Thus, "ranid" (which means frog) was depicted by Scruggs et al . (1985) as a frog sitting in the rain. Finally, the learner is taught to retrieve the definition after thinking of the keyword and recalling the interactive picture.The keyword method 's superiority over direct (nonmnemonic) instruction has been demonstrated in teaching science facts to mentally retarded (MR) and learning disabled (LD) adolescents (e.g. , see Mastropieri, Scruggs, & Levin, 1986; Scruggs, Mastropieri, McLoone, Levin, & Morrison, 1987), improving eighth graders' prose comprehension (Peters, Levin, McGivern, & Pressley, 1985), and teaching vocabulary words to educable mentally retarded (EMR) junior high school students (Scruggs et al . , 1985) and LD sixth graders (Condus, Marshall, & Miller, 1986). In a review of cognitive strategies for poor learners, Pressley, Johnson, and Symons (1987) conThe subjects in this experiment came from a larger sample used in a study by Short, Evans. Friebert, and Schatschneider (1989 Copyright 1990 Psychonomic Society, Inc . 14 elude that the keyword strategy's success is robust, since no population has been identified that does not benefit from keyword interventions. In contrast to keyword pictures, representational pictures display the content to be learned without the use of a keyword. For instance, a representational picture of ranid would depict a frog. Researchers often teach material by using representational images along with a "direct instruction" approach (Becker, Engelmann, Carnine, & Maggs, 1982), which emphasizes verbal rehearsal, fastpaced questioning and feedback, and frequent learner responding .The present study's main aim was to investigate the relative effectiveness of the keyword and direct instruction approaches in facilitating primary-grade handicapped learners' memories of vocabulary words. Previous studies have demonstrated that the keyword strat...