A university researcher who wanted to determine the effectiveness of new technology in the teaching of freshman psychology used the new technology in one section, while a second section had the conventional lecture method. When the two sections were compared on final exam scores, the researcher was surprised to find that the conventional classroom actually had slightly higher scores. This finding may be an example of the
a. Hawthorne effect. c. Pygmalion effect.
b. John Henry effect. d. reactive effect.
Ques. 2In an ex post facto study, a researcher investigated the effect of academic self-concept on school achievement. He concluded that a more positive self-concept leads to higher achievement in school. Label the following plausible alternative hypotheses as common cause, reverse causality, or other independent variables may be operating. Another variable such as academic aptitude results in both a positive academic self-concept and high achievement in school.
a. common cause
b. reverse causality
c. other independent variables may be operating
Ques. 3The finding that individuals' performance may be altered if they are subjects in an experimental treatment is known as the
a. treatment effect. c. placebo effect.
b. experimenter effect. d. Hawthorne effect.
Quick Reply
