1
Published [1982]

Report Number(s): APA 2954 APA 2955 SUS 65

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3
Published [1981]

Report Number(s): APA 1281

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6
7
8
9
Published [1983]

Report Number(s): APA 2427

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10
Published [1981]

Report Number(s): APA 2357

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11
12
Published [1983]

Report Number(s): APA 559 APA 667

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16
Published [1984?]

Report Number(s): APA 2778 (draft)

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