How does a one-group pretest-posttest design improve on the posttest-only quasi-experimental design? What is the major limitation of all one-group designs?

What will be an ideal response?


The one-group pretest-posttest design improves on the posttest only design in that it minimizes the problem related to not having a comparison/control group by comparing scores before and after a treatment. The limitation for all one group designs, however, is that they lack a no treatment control group and therefore are still prone to many threats to internal validity, particularly those associated with observing the same participants over time.

Psychology

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Educational simulations allow students to explore an imaginary situation and are the most complex type of

a. serious games. b. token economies. c. latent learning exercises. d. educational feedback loops.

Psychology

The basal ganglia send outputs to motor centres in the:

A) hypothalamus. B) hippocampus. C) cerebral cortex. D) brainstem.

Psychology

Peter wants to learn how to make a better impression on people, notices that Greg usually makes a good impression, and begins acting as Greg acts. This is an example of:

a. learning through observation. b. reinforcement. c. direct learning. d. emotional conditioning.

Psychology

Theories generate testable predictions or __________ , which can be verified by scientific

research. Fill in the blanks with correct word

Psychology