Must a Study Have External Validity?
Identify the true and false statements about external validity.
True Statement(s)
1. Theory-testing mode does not prioritize external validity.
2. Studies must be conducted outside the laboratory to have external validity.
3. External validity is based on how the sample is obtained rather than the size of the sample.
4. The word population always refers to the entire global population.
5. Direct replication studies generally do not support external validity.