PSY 290 Final Exam UPDATED ACTUAL Questions and
CORRECT Answers
Deci and Ryan proposed that 3 fundamental needs are Theory, hypothesis
required for human growth and fulfillment: relatedness,
autonomy, and competence. Susan thinks that if
students have certain needs met in psychology class,
such as relatedness or autonomy, they will feel happier
and more satisfied with the class then if they do not.
Deci and Ryan are describing a ___ while Susan is
describing a _____
What is the difference between a main effect and an Main effects examine one independent variable at a time; interaction effects
interaction? examine how multiple independent variables interact.
Dr. Gloss runs two experiments. In the first experiment, An increase in the number of subjects
she finds that a t-test run on two groups of subjects
produces a p value of .10. In her second experiment she
uses the exact same methods from the first experiment
on two different groups of subjects. She finds that the
difference between group means and the variance of
each group is exactly the same as the first experiment
but she now has a p value of .01. What would you
explain the difference in p values?
Randall is trying to determine if adding chocolate on Nonequivalent control group design
top of his pastries increases his sales. On Saturday, he
only sells pastries without chocolate while on Sunday,
he only sells pastries topped with chocolate. He finds
that he sells much more pastries on Sunday when they
are topped with chocolate. What type of experimental
design is Randall using?
, Which of the following is not applicable to single-N The use of t-tests comparing groups
studies in cases such as brain damage or lesions?
Kelly runs an experiment assessing the self-confidence Maturation
of a single group of adolescents from ages 12-17. She
uses the same assessment for all subjects and finds that
self-confidence increases with the number of years they
attend high school. She determines that attending high
school increases self-confidence. What type of threat
to internal validity would be the best alternative
explanation for her findings?
Sandra measures the level of happiness across two Regression to the mean
groups of subjects two weeks apart. One group
receives a behavioral intervention aimed at improving
happiness while the other group does not. She uses the
same happiness assessment at both time points. She
finds that the experimental group had normal levels of
happiness before the intervention that moderately
increased after the intervention. In the control group
that did not receive the intervention, she finds unusually
high levels of happiness that went down to normal two
week later. What might explain her results for the
control group?
John wants to determine if consuming caffeine Conceptual replication
increases cognitive task performance. He gives half of
his participants a bottle of water and half of his
participants a bottle of cola. He then them solve 25
math problems. He finds that people who drank
caffeine solve more problems than those who drank
water. His lab mate Gary decides to conduct the exact
same study again to ensure that he can find the same
difference between the groups a second time.
However, this time he uses coffee instead of cola as a
source of caffeine. This study is known as a
Linda is interesten in examining the relationship Measure daily stress and cardiovascular health in several new samples of
between daily stress and cardiovascular health for her participants
senior psychology research project. She decides to
conduct a meta-analysis rather than a review paper.
What will Linda NOT do when conducting her meta-
analysis?
In typical psychology studies comparing how different Groups, a single person
samples of people behave, we are interested in how ____
behave(s). In single-n studies, we are interested in how
____ behave(s).
Your friend Dominic is complaining about having the Criterion validity
Police Academy Exam (PAE), a test the is required to
enter the police force. He complains, "Tests like the PEA
don't really measure how well people actually do on
the streets being a policeman, how could they?"
Dominic is questioning the __ of the test.
CORRECT Answers
Deci and Ryan proposed that 3 fundamental needs are Theory, hypothesis
required for human growth and fulfillment: relatedness,
autonomy, and competence. Susan thinks that if
students have certain needs met in psychology class,
such as relatedness or autonomy, they will feel happier
and more satisfied with the class then if they do not.
Deci and Ryan are describing a ___ while Susan is
describing a _____
What is the difference between a main effect and an Main effects examine one independent variable at a time; interaction effects
interaction? examine how multiple independent variables interact.
Dr. Gloss runs two experiments. In the first experiment, An increase in the number of subjects
she finds that a t-test run on two groups of subjects
produces a p value of .10. In her second experiment she
uses the exact same methods from the first experiment
on two different groups of subjects. She finds that the
difference between group means and the variance of
each group is exactly the same as the first experiment
but she now has a p value of .01. What would you
explain the difference in p values?
Randall is trying to determine if adding chocolate on Nonequivalent control group design
top of his pastries increases his sales. On Saturday, he
only sells pastries without chocolate while on Sunday,
he only sells pastries topped with chocolate. He finds
that he sells much more pastries on Sunday when they
are topped with chocolate. What type of experimental
design is Randall using?
, Which of the following is not applicable to single-N The use of t-tests comparing groups
studies in cases such as brain damage or lesions?
Kelly runs an experiment assessing the self-confidence Maturation
of a single group of adolescents from ages 12-17. She
uses the same assessment for all subjects and finds that
self-confidence increases with the number of years they
attend high school. She determines that attending high
school increases self-confidence. What type of threat
to internal validity would be the best alternative
explanation for her findings?
Sandra measures the level of happiness across two Regression to the mean
groups of subjects two weeks apart. One group
receives a behavioral intervention aimed at improving
happiness while the other group does not. She uses the
same happiness assessment at both time points. She
finds that the experimental group had normal levels of
happiness before the intervention that moderately
increased after the intervention. In the control group
that did not receive the intervention, she finds unusually
high levels of happiness that went down to normal two
week later. What might explain her results for the
control group?
John wants to determine if consuming caffeine Conceptual replication
increases cognitive task performance. He gives half of
his participants a bottle of water and half of his
participants a bottle of cola. He then them solve 25
math problems. He finds that people who drank
caffeine solve more problems than those who drank
water. His lab mate Gary decides to conduct the exact
same study again to ensure that he can find the same
difference between the groups a second time.
However, this time he uses coffee instead of cola as a
source of caffeine. This study is known as a
Linda is interesten in examining the relationship Measure daily stress and cardiovascular health in several new samples of
between daily stress and cardiovascular health for her participants
senior psychology research project. She decides to
conduct a meta-analysis rather than a review paper.
What will Linda NOT do when conducting her meta-
analysis?
In typical psychology studies comparing how different Groups, a single person
samples of people behave, we are interested in how ____
behave(s). In single-n studies, we are interested in how
____ behave(s).
Your friend Dominic is complaining about having the Criterion validity
Police Academy Exam (PAE), a test the is required to
enter the police force. He complains, "Tests like the PEA
don't really measure how well people actually do on
the streets being a policeman, how could they?"
Dominic is questioning the __ of the test.
