ERIC Number: ED038265
Record Type: RIE
Publication Date: 1969
Reference Count: 0
Eye Movements as a Function of Response Contingencies Measured by Blackout Technique.
Doran, Judith; Holland, James G.
The experiment reported was designed to determine whether programed material low in response contingency, and thus yielding a high blackout ratio, is read less thoroughly than programed material heavily response contingent and yielding a low blackout ratio. Eye movements were compared for two parallel forms of the same program, differing only in the choice of omitted word. In one version the response was relatively unrelated to the rest of the item (65 percent blackout ratio); in the other the response depended on more of the material (25.4 percent blackout ratio). Subjects were 18 college students who received half their material from the high and half from the low blackout program. Half of the subjects received the initial material in high blackout form. Eye movements were recorded by a Mackworth Eye Marker Camera. High blackout ratio material (low response contingency) resulted in fewer fixations, shorter fixation time, and shorter scanning time than did low blackout ratio material. It was concluded that high blackout ratio programs fail to evoke the students' attention. Tables, graphs, and references are included. (Author/WB)
Publication Type: N/A
Education Level: N/A
Sponsor: Office of Education (DHEW), Washington, DC. Bureau of Research.
Authoring Institution: Pittsburgh Univ., PA. Learning Research and Development Center.