An Evaluation of Multiple Tracks in a Linear Program

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Report Number: AMRL TR 64-108
Author(s): Glaser, Robert, Reynolds, James H., Harakas, Theodore, Holzman, A. G., Abma, John S.
Corporate Author(s): University of Pittsburgh
Laboratory: Behavioral Sciences Laboratory
Date of Publication: 1964-10
Pages: 22
Contract: AF 33(616)-7175
DoD Project: 1710
DoD Task: 171007
Identifier: AD0609801

Two experiments were performed to evaluate multitracking (branching) in a linear program. In experiment one, the multitracking consisted of providing additional cues at each frame for use by those students who felt unsure of their response. Results indicated no significant difference in efficiency between the regular linear program and the multitrack program. In experiment two, the multitracking consisted of large frames followed by more detailed frames whenever the student made an error. Large frames were developed by combining an average of three small frames. Again, the results indicated no difference in instructional efficiency between the regular linear program and the multitrack program. Although more errors were made on the largestep branching program, performance on criterion tests was as good as for the regular small-step linear program. Although branching seems a reasonable way to accommodate individual differences, the two methods attempted in this research did not show an advantage. More promising methods of branching might be (a) less frequent branches, at critical points in the program, and (b) large-step frames followed by special remedial frames, rather than by mere repetition of parts of the original large frame.

Provenance: RAF Centre of Aviation Medicine

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