UIUC PSYCH 333 Final Exam – Psychology Comprehensive Review Guide and
Practice Questions
Cohen's d of .31 - ANS ✔✔Small effect
Effect size - ANS ✔✔Measuring a relationship between a group
Why do experiments produce such a big behavioral difference? - ANS ✔✔Let you create "just
right" situation and they let you tap into unconscious processes, like scripts, that are generally
not aware of outside lab setting
Controlling for extraneous variables, uses standardized instructions, includes counter balancing
and tris to eliminate demand characteristics and investigator effects - ANS ✔✔Controlling for
threats to internal validity
What factors do you need to infer causation? - ANS ✔✔Temporal precedence, covariation of
cause and effect, elimination of alternative explanation
Variables that are related to the independent variable and might affect the outcome of a study -
ANS ✔✔Confounding
Controlling for external validity - ANS ✔✔Running another study with a new sample
A study on memory asks participants to memorize nonsense words, what is this study high in? -
ANS ✔✔Experimental realism
Too many participants have very high scores on the dependent variable - ANS ✔✔Ceiling effect
, Impossible to get a high score on dependent variable - ANS ✔✔Floor effect
Your friend josh develops a drug to make people happy and it seems to work. One day you
notice that participants have been watching happy programs before getting their happiness
measured. This creates a problem with - ANS ✔✔Internal validity
Sophie designs a study to test the relation between playing video games and aggressive
behavior. She finds a strong correlation between these two variables, but her coworker points
out that she should also have questions about other things like parental involvement, etc. why
would her coworker to suggest this? - ANS ✔✔They're may be third variables
According to the law of parsimony - ANS ✔✔The simplest answer is preferred
Jack wants to see if people are likely to jaywalk, and why that might be. What method should he
use? - ANS ✔✔Psychophysiological and observational studies
Many psychologists interpret their data is if it is ___ and it actually is ____ - ANS ✔✔Everyone,
college students
One can never make a completely firm causal claim unless - ANS ✔✔The experminter has
manipulated some variable
Which major ethical theories explicitly acknowledges the idea that it may not be able to
definitively desire whether an action is right or wrong? - ANS ✔✔Utilitarianism
A recent study has shown that having a snack before taking a test improves performance.
Reading this, a scientist wants to examine how well these findings generalize. The scientist
should thus conduct this study: - ANS ✔✔Varying the time of day the study is conducted
Practice Questions
Cohen's d of .31 - ANS ✔✔Small effect
Effect size - ANS ✔✔Measuring a relationship between a group
Why do experiments produce such a big behavioral difference? - ANS ✔✔Let you create "just
right" situation and they let you tap into unconscious processes, like scripts, that are generally
not aware of outside lab setting
Controlling for extraneous variables, uses standardized instructions, includes counter balancing
and tris to eliminate demand characteristics and investigator effects - ANS ✔✔Controlling for
threats to internal validity
What factors do you need to infer causation? - ANS ✔✔Temporal precedence, covariation of
cause and effect, elimination of alternative explanation
Variables that are related to the independent variable and might affect the outcome of a study -
ANS ✔✔Confounding
Controlling for external validity - ANS ✔✔Running another study with a new sample
A study on memory asks participants to memorize nonsense words, what is this study high in? -
ANS ✔✔Experimental realism
Too many participants have very high scores on the dependent variable - ANS ✔✔Ceiling effect
, Impossible to get a high score on dependent variable - ANS ✔✔Floor effect
Your friend josh develops a drug to make people happy and it seems to work. One day you
notice that participants have been watching happy programs before getting their happiness
measured. This creates a problem with - ANS ✔✔Internal validity
Sophie designs a study to test the relation between playing video games and aggressive
behavior. She finds a strong correlation between these two variables, but her coworker points
out that she should also have questions about other things like parental involvement, etc. why
would her coworker to suggest this? - ANS ✔✔They're may be third variables
According to the law of parsimony - ANS ✔✔The simplest answer is preferred
Jack wants to see if people are likely to jaywalk, and why that might be. What method should he
use? - ANS ✔✔Psychophysiological and observational studies
Many psychologists interpret their data is if it is ___ and it actually is ____ - ANS ✔✔Everyone,
college students
One can never make a completely firm causal claim unless - ANS ✔✔The experminter has
manipulated some variable
Which major ethical theories explicitly acknowledges the idea that it may not be able to
definitively desire whether an action is right or wrong? - ANS ✔✔Utilitarianism
A recent study has shown that having a snack before taking a test improves performance.
Reading this, a scientist wants to examine how well these findings generalize. The scientist
should thus conduct this study: - ANS ✔✔Varying the time of day the study is conducted
