Chapter 13 notes

Chapter 13 notes - Chapter 13 Single-Case Research...

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Chapter 13 Single-Case Research
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Single-Case Research Two types of research Nomothetic Approach Idiographic Approach
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Types of Single-Case Research Single-Case Experimental Research IV is manipulated, strong experimental control Case Studies Uncontrolled impressionistic descriptions “new” or “unusual” cases
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Single-Case Experimental Designs Usually conducted with 3-8 participants Since data is rarely averaged across individuals t-test and F-test comparisons are not used.
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Criticisms of Group Designs Error Variance Generalizability Reliability
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Criticisms of Group Designs Error Variance Why used Averaging scores provides a more accurate estimate of effects of IV Allows for t-tests,f-tests Criticism Focus should be on intra-participant variance
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Example: Error Variance -1 -0.5 0 0.5 1 1.5 0 3 6 9 1 2 5 8 Trials Number correct number correct
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Example: Error Variance (average) -1 -0.5 0 0.5 1 1.5 0 3 6 9 1 2 5 8 Trials Number correct number correct
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Chapter 13 notes - Chapter 13 Single-Case Research...

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