“…Educational decisions concerning students' placements and programs are influenced heavily by performance on such standardized measures, and the assumption is often made that all students' performance scores represent the same valid manifestation of the latent construct, comprehension. However, it has been suggested that the validity of such assessments can be affected by certain features of the test itself, such as passage variables (e.g., Beck, McKeown, Omanson, & Pople, 1984;Johnston & Pearson, 1982;Marr, 1983;Moes et al, 1984;Raphael, Myers, Tirre, Freebody, & Fritz, 1981), question type variables (e.g., Davey & LaSasso, 1984;Haertel, 1980Haertel, , 1984Johnston & Pearson, 1982), and question format features (e.g., Drum, Calfee, & Cook, 1981;Kendall, Mason, & Hunter, 1980;Traub & Fisher, 1977;Ward, 1982).…”