ANNEX FIGURE 4–1 Simplified version of portions of the inference network through which the HYDRIVE student model is operationalized and updated. NOTE: Bars represent probabilities, summing to one for all the possible values of a variable. A shaded bar extending the full width of a node represents certainty, due to having observed the value of that variable; i.e., a student’s actual responses to tasks.

SOURCE: Mislevy (1996, p. 407). Used with permission of the author.

The National Academies | 500 Fifth St. N.W. | Washington, D.C. 20001
Copyright © National Academy of Sciences. All rights reserved.
Terms of Use and Privacy Statement