The purpose of this study is to investigate whether students are more successful on abstract or illustrated test questions. To this end, the questions on an abstract test were changed into a visual format, and these tests were administered every three days to a total of 240 students at six middle schools located in the Erzurum city center and…

This paper explores the comparability of item calibrations for three types of items: (1) text only; (2) text with photographs; and (3) text plus graphics when items are presented on written tests and computerized adaptive tests. Data are from five different medical technology certification examinations administered nationwide in 1993. The Rasch…

The purpose of several studies was to examine the effects that differentially coded (black and white or color) illustrations had on students who were classified as field independent, field neutral, and field dependent on tests measuring different educational objectives. The effects of visual and verbal test formats were also examined. In general,…