Discuss the four proposed standards listed by the WWC for evaluating single-subject research.
What will be an ideal response?
Ans:
• Design Standard 1: The independent variable (i.e., the intervention) must be systematically manipulated with the researcher determining when and how the independent variable conditions change.
• Design Standard 2A: Each outcome variable must be measured systematically (i.e., repeatedly) over time by more than one assessor.
• Design Standard 2B: The study needs to collect interassessor agreement on at least 20% of the data points in each condition (e.g., baseline and interventions).
• Design Standard 2C: The interassessor agreement must meet minimal thresholds (e.g. .80 for percentage agreement and .60 for kappa).
• Design Standard 3: The study must include at least three attempts to demonstrate an intervention effect at three different points in time or three different phase repetitions.
• Design Standard 4: For a phase to qualify as an attempt to demonstrate an effect, the phase must have a minimum of three data points.
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