Answer the following statement(s) true (T) or false (F)

1. External validity deals with changes in the individual or group due to the
experimental conditions.
2. Assigning voluntary clients to the experimental group and involuntary clients to the
control group might lead to a problem of the interaction of selection and treatment.
3. Although cross-population generalizability is difficult to achieve using experiments, a
true experiment usually has high sample generalizability.
4. The Solomon Four Group design helps control for any bias in experiments through
pretesting.
5. Meta-analysis is a method to analyze findings from multiple quantitative studies
evaluating a particular treatment.


1. FALSE
2. TRUE
3. FALSE
4. TRUE
5. TRUE

Social Work & Human Services

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