Abstract : This study was concerned with the question of whether information can be obtained more effectively by reading or by hearing. Under the conditions of the experiment the results show that: (1) A single read-through of the material and hearing the material read once resulted in equally effective comprehension, (2) Studying(reading) the material for a period of time equal to the length of time required for verbally presenting the material resulted in significantly greater comprehension when compared with a single read-through or auditory presentation, (3) Reading and hearing simultaneously the material was more effective than either reading the material through once or hearing the material, but not significantly different from the resuls of studying the material. (Author)