QUESTION 22A.

1. Suppose in one experiment in a series you found no difference in your participants' responses to the levels of your independent variable. You suspect that the levels you chose were too close together. So you redo the experiment with appropriate levels. It would be ethical to
2. 1.report all results regardless of the outcome.
3. 2.change all results that do not fit the theory.
4. 3.report only the best experiment if no more than five experiments were done.
5. 4.leave the first experiment out of a report if it adds nothing to the conclusion.

B.

1. In order to minimize transmitting experimenter biases to participants, the experimenter could,
2. 1.tape record instructions.
3. 2.use multiple experimenters.
4. 3.all choices are correct.
5. 4.make the experiment a double-blind experiment.

C.

1. Counterbalancing is a way to minimize
2. 1.range effects.
3. 2.problems with matching.
4. 3.variability.
5. 4.order effects.

D.

1. You decide to do an experiment to find out how long it takes 5-, 7-, and 9-year olds to run an obstacle course. The various ages are levels of the
2. 1.independent variable.
3. 2.dependent variable.
4. 3.random variable.
5. 4.confounding variable.