A Cognitive Diagnosis Method in Adaptive Learning System Based on Preconceptions

Table 3

Example subjective questionnaire analysis.

Question	Summary and analysis
As shown in the figure below, if an additional book is placed on top of the table and the books from the previous question, does the book at the top exert pressure on the table top?	Summary of answers
	A. Exerts pressure; B. Does not exert pressure; C. Unknown
	A. Since there are two books on the table, the book on top exerts pressure on the table through the book below it
	B. Since every book exerts pressure, the additional book exerts pressure on the table
	C. Since the book on top has no contact with the table, it does not exert pressure on the table
	D. Since the book on top is not heavy enough, it does not exert pressure on the table