This study examined the relationship between the difficulty of items on an achievement-type test of report writing and (a) the items' correlations with the test's criticalness response style score, and (b) the items' correlations with the test's content score. Item readability and item format variables were also analyzed. The major findings were that (a) the items' difficulty was related to their correlations with the content score and unrelated to the items' correlations with the response style score; (b) the items' location in the test was generally related to their correlations with the response style score, and unrelated to the other variables; and (c) the readability indexes were not related to the three basic item variables.