Download - Single subject experimental research
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SINGLE – SUBJECT
EXPERIMENTAL RESEARCH
Cadiz, MaricrisEstrella, Laila
Pescasio, Leona PearlSarmiento, Jennica Rezza
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a single-subject research is a method of testing hypothesis.
sometimes referred to as single-case or N of one research.
What is Single-Subject Experimental research ?
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o Repeated Measurements •also an observation of the individual.
Purpose: to determine if changes in the experimental conditions effect changes in the subject.
GENERAL PROCEDURES
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o Baseline• Is analogous to a pre-test in group research design• Baseline data generally are collected by observing the aspect the individual’s behavior that is under study at several times prior to intervention.
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oManipulating Variables
oLength of Phase
oTransfer of Training and Response Maintenance
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o Target Behavior or focus of the research is usually determined by the research or real problem.
Purpose of assessing the target behavior:• first, determine the extent to which the
target behavior is performed before the program begins.
• Second, assessment is required to reflect behavior change after the intervention begun.
ASSESSMENT
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oData Collection Strategies
Ways to measure such behaviors.• Frequency measure is simply a
count of the number of occurrences of the behavior observed during a given period of time.• Duration a time-based measure of
overt behavior• Time sampling or interval recording • Real-time observation
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o A-B-A DesignA- represent a series of baseline measurement.
B- represent a series of measurements occurring during the treatment.
A-B-A • Baseline• Intervention•withdrawal
BASIS DESIGN
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A-B-A-B design examines the effect of an intervention by altering the baseline condition(A phase), when no intervention is in effect, with the intervention condition (B phase)
o Multiple Baseline Design• Interventioneffect is demonstrated by having more than one baseline.
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oOther Design• Alternating treatment or Multiple treatment design permit the researcher to compare two or more treatment while controlling for possible order effects.
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The End
Smile