The current study expands on previous research on gender differences and similarities in science test scores. Using three different approaches -- differential item functioning, differential distractor functioning, and decision tree analysis -- we examine a high school science assessment administered to 3,849 10th-12th graders, of whom 2,021 are…

An index identifying factors leading to unusual response patterns by students, the modified caution index, was computed for the reading comprehension and study skills items of Booklet 5 from the 1979 National Assessment of Educational Progress (NAEP) reading achievement survey given to the 9-, 13- and 17-year-old samples. The analyses focused on…