PSYC 200 - Research Methodology
(Chapter 2) correctly answered to pass
placebo effect - correct answer ✔✔idea that your brain can convince your body a fake treatment
construct validity - correct answer ✔✔the extent to which a measure of X truly measures X and not Y
(e.g., a valid measure of intelligence measures intelligence and not something else)
internal validity - correct answer ✔✔an experiment with high internal validity means that the change in
the dependent variable is caused by the independent variable(s) and not by the confounding variables
external validity - correct answer ✔✔an experiment with high external validity means that the
researcher can generalize the experimental findings to broader circumstances (often from laboratory to
the real world)
confounding variable (third variable) - correct answer ✔✔variable that affects a dependent variable and
unintentionally varies between experimental conditions of a study
statistically significant - correct answer ✔✔the claim that a result from data generated by testing or
experimentation is likely to be attributable to a specific cause
error variance - correct answer ✔✔differences seen within a group
inferential statistics - correct answer ✔✔the process of using data analysis to infer properties of an
underlying distribution of probability
within-subject design - correct answer ✔✔each individual is his/her own control (or baseline measure),
so compared to themselves not to another group
(Chapter 2) correctly answered to pass
placebo effect - correct answer ✔✔idea that your brain can convince your body a fake treatment
construct validity - correct answer ✔✔the extent to which a measure of X truly measures X and not Y
(e.g., a valid measure of intelligence measures intelligence and not something else)
internal validity - correct answer ✔✔an experiment with high internal validity means that the change in
the dependent variable is caused by the independent variable(s) and not by the confounding variables
external validity - correct answer ✔✔an experiment with high external validity means that the
researcher can generalize the experimental findings to broader circumstances (often from laboratory to
the real world)
confounding variable (third variable) - correct answer ✔✔variable that affects a dependent variable and
unintentionally varies between experimental conditions of a study
statistically significant - correct answer ✔✔the claim that a result from data generated by testing or
experimentation is likely to be attributable to a specific cause
error variance - correct answer ✔✔differences seen within a group
inferential statistics - correct answer ✔✔the process of using data analysis to infer properties of an
underlying distribution of probability
within-subject design - correct answer ✔✔each individual is his/her own control (or baseline measure),
so compared to themselves not to another group
