Two criteria for the automatic encoding of learning, instructional manipulation, and stimulus characteristics were studied in subjects who judged the frequency of occurrence of words, letters, and nonwords. In Experiment 1, six word lists were constructed with varying frequency of alphabet letters. A variety of instructions were presented (whether…

Examines whether students spontaneously focus on and acquire meanings for unknown words encountered in text. Indicates that, while the intentional learning group made the greatest gains, the incidental learning group acquired some knowledge and confidence. Shows that the control group gained little in either case. Provides support for incidental…