The Information Plot report contains a plot of the overall information curve, which is constructed by summing the individual item information curves. The information plot provides insight into the appropriate ability levels that the test is able to measure. Figure 9.6 describes a test with items that are appropriate for assessing individuals with average to low levels of the ability more so than individuals with high levels of ability. This plot is initially closed.
Figure 9.6 Information Plot

Help created on 7/12/2018