This codebook for a machine-readable data file contains the frequencies for the value of 23 variables for each of the 3,173 student-activity evaluation interactions (cases) for the 44 activities in the Human Sciences Knowing Module. Students rated each activity on an eight-item, Likert-type scale and responded to open-ended questions about the activity. The Knowing module was field tested, Spring 1977, with a different student group and in different schools than participated in the field test of most of the Human Sciences program. (Author)