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Small-n Designs
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Small-n Designs Systematic examination of behavior in one or a few individuals before and after treatment/intervention
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Key Terms Baseline Stage Treatment Stage
Observations made prior to an intervention Treatment Stage Observations made following an intervention Phase Change Involves changes in the administration of intervention
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LEVEL OF ANXIETY Baseline Phase Treatment Phase Phase Change
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Level A data pattern where a series of measurements are at the same magnitude Levels Level Of Anxiety
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Trend Measurement A data pattern where series of measurements are in the same direction Measurement TRENDS Measurement
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Interpreting Data Change in Mean Change in Level Change in Trend
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Interpreting Data Change in Mean Change in Mean M = 8.02 M = 4.50
LEVEL OF ANXIETY M = 8.02 M = 4.50
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Interpreting Data Change in Level Change in Mean Change in Level
LEVEL OF ANXIETY Change in Level
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Interpreting Data Change in Trend Change in Mean Change in Level
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A-B-A-B Design Where treatment and measurement are systematically altered to assess change A = Baseline Phase B = Treatment Phase ... A B A
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ABAB Design
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Multiple Baseline Design
Where multiple baselines are established across situation or individual or behavior
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The Good, The Bad ... Advantages Research in applied settings Flexible
Disadvantages External Validity Absent...statistically
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