Unpacked Content
Knowledge
Students know:
- Techniques for selecting random samples from a population.
- Techniques for randomly assigning subjects to experimental treatment groups.
Skills
Students are able to:
- Recognize if a sample is random.
- Reach accurate conclusions regarding the population from the sample.
- Reach accurate conclusions regarding the cause and effect of an experimental treatment.
Understanding
Students understand that:
- Random selection is essential to external validity, or the extent to which the researcher can generalize the results of the study to the larger population.
- Random assignment is central to internal validity, which allows the researcher to make causal claims about the effect of the treatment.
Vocabulary
- Randomly
- Non-randomized
- Inference
- Treatments
- Cause and effect
