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BACKGROUND AND KEY MEASUREMENT CONSIDERATIONS
| Measurement and Experimental Evaluation of Behavioral Interventions I |
| ABA 534 – Module 1.4 |
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BACKGROUND AND KEY MEASUREMENT CONSIDERATIONS
INTRODUCTION
Single case methodology includes 3 components
Assessment
Experimental design
Data evaluation
We will now focus on ASSESSMENT
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BACKGROUND AND KEY MEASUREMENT CONSIDERATIONS
IDENTIFYING GOALS OF THE PROGRAM
Frequently used criteria
Setting
Nature of impairment
Concerns of individual and significant others
Prevent onset of problems
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BACKGROUND AND KEY MEASUREMENT CONSIDERATIONS
SOCIAL VALIDITY
Are the goals of intervention relevant to everyday life?
Social comparison
Subjective evaluation
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BACKGROUND AND KEY MEASUREMENT CONSIDERATIONS
DEFINING THE TARGET BEHAVIOR OF FOCUS
Operational definitions
Objectivity
Clarity
Completeness
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BACKGROUND AND KEY MEASUREMENT CONSIDERATIONS
Assessment requirements of single-case designs
Administered repeatedly
Consistency of measurement
Capacity to reflect change
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BACKGROUND AND KEY MEASUREMENT CONSIDERATIONS
Assessment requirements of single-case designs
Dimensional Scale
Relevance of the measure
Importance of the measure
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BACKGROUND AND KEY MEASUREMENT CONSIDERATIONS
Use of multiple measures
Primary measure: Continuous ongoing assessment
Other measures capture global aspects of behavior change
Pre-post assessment
Periodic probes
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BACKGROUND AND KEY MEASUREMENT CONSIDERATIONS
RELIABILITY AND VALIDITY
Reliability: Is the measurement consistent?
Validity: Does the measurement procedure assess what you want it to assess?
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BACKGROUND AND KEY MEASUREMENT CONSIDERATIONS
RELIABILITY AND VALIDITY
Validity
Are conditions that data are collected representative of targeted normal daily life conditions?
Is data measuring a socially significant behavior?
Are all behaviors of the domain captured by the measure?
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Summary of Module 1
Single subject research grows out of an historical context of examining the influences of environmental arrangements on the behavior of an individual
The purpose of experimentation is to yield valid inferences
Systematic assessment is a precondition for drawing inferences
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Summary of Module 1
Ongoing continuous assessment is a key feature of single subject designs
Consistency of measurement, reliability is critical for evaluation
Also critical is that the measure is relevant, makes a difference, and is important. This is validity.
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NEXT UP
We will discuss:
Specific procedures for assessment
Techniques for assessment
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Created by: Kathleen Dyer, CCC-SLP, BCBA-D, LABA Adjunct Faculty, ABA Programs
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