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Psychology Chapter 2
| Questions |
Answers |
| In an experiment, the independent variable is the one that the researcher: |
systematically alters. |
| A survey investigating public opinion regarding crime in the United States is carried out by telephone with calls made Monday-Friday between 1 P.M. and 5 P.M. This study is flawed, due to: |
biased sampling. |
| A questionnaire used to measure childhood aggression asks the question "Does your child push others?" This is an example of: |
an operational definition. |
| When psychologists say the probability that results could be caused by chance is small, they mean that there is a good chance the study is: |
statistically significant. |
| _____, or nonrandom effects caused by factors outside of the research hypothesis are problematic to researchers. |
Bias. |
| If an experiment has the correlation coefficient of -.85, this means that when one variable decreases, while the other variable ________: |
increases. |
| Facilitated communication, in which autistic children were supposedly able to answer questions, express emotions, and describe events in their lives, provides a classic illustration of _____ effects. |
observer-expectancy. |
