If an experimenter CANNOT manipulate the effect size of an experiment to increase power, the aspect of a study that can usually be changed easily to increase power is

What is the conclusion of studies on discovery learning that takes the personalities of students into consideration?

a) Extraverted students do better with discovery learning. b) Introverted students do better with discovery learning. c) There is no relationship between personality and preferred mode of learning. d) Both extraverts and introverts need equal amounts of discovery and reception learning for maximal learning.

A(n) _________ is anything that strengthens or increases the probability of the response that it follows

a) operant b) reward c) reinforcer d) punisher