Question

1.The terms variation and variability are used to describe

a. how similar or diverse the scores are .

b. the gap between the lowest and highest scores.

c. how likely it is that an obtained result occurred by chance.

d. the symmetrical or bell-shaped curve that describes the distribution of many types of data.

2.The biggest limitation of experimental research is that :

		A.it cannot distinguish cause and effect.
		B.it cannot be used to investigate mental processes.
		C.the results are usually influenced by the experimenter's biases.
		D.it may not generalize to real-world contexts.

Answer 1

1. Correct Answer -A

The terms variation or variability are used to describe how similar or diverse the scores are. When the scores are very diverse then the mean could be less reliable, if the scores are similar the mean is more reliable.

2. Correct Answer - D

The biggest limitation of experimental research is that it may not generalize to real-world contexts. Experimental studies are done in artificially created environments which may not replicate real life situations and responses.