psy 290 final exam UPDATED ACTUAL
Questions and CORRECT Answers
A researcher conducts a study in which 50 rats are assigned to different treatments and tested. In the
study, the rats are called research ____. - CORRECT ANSWER -subjects
You have dinner reservations at 7:30 at a restaurant that is 30 minutes away and it is already 7:20, leading
you to conclude that you are going to be late. This is an example of using the empirical method. -
CORRECT ANSWER -false
In the scientific method, the actual research study is not done until after the researcher has formed a
hypothesis and made a specific prediction. - CORRECT ANSWER -true
An artist tries putting a freshly painted canvas outside during a rainstorm to see how the painting will
change from the pattern of the raindrops. Which method of acquiring knowledge is she using? -
CORRECT ANSWER -method of empiracism
Before searching in PsycINFO, it is wise to identify the correct subject terms for the topics you have
identified. - CORRECT ANSWER -true
What kind of validity requires that a researcher create two different measures of the same variable? -
CORRECT ANSWER -convergent
You can safely assume that ____. - CORRECT ANSWER -primary sources contain descriptions of
research by those who conducted it
_____________________ is a set of statements about the mechanisms that underlie a particular behavior
or thought process. - CORRECT ANSWER -A theory
Concurrent validity involves: - CORRECT ANSWER -demonstrating that the scores on the new
test correlate with scores on established tests
,A new survey of depression correlates positively and strongly with two other surveys of depression. This
is an example of: - CORRECT ANSWER -convergent validity
Which of the following would be an example of a self-report measure of anxiety? - CORRECT
ANSWER -a survey measuring anxiety
The Nuremberg Code outlines basic ethical guidelines for the ____. - CORRECT ANSWER -
treatment of human participants
The principles outlined in the Belmont Report are no longer used today. - CORRECT ANSWER -
false
Which form of deception is permitted in psychological research? - CORRECT ANSWER -
Observing participants who don't know they are being observed
The Tuskegee study involved injecting patients with live cancer cells without their knowledge or consent.
- CORRECT ANSWER -false
The most commonly used sampling method in psychological research is probably ____ sampling. -
CORRECT ANSWER -convenience
A teacher obtains a sample of children from a fifth-grade classroom by randomly selecting the third, fifth,
and eighth rows and taking all the students in those rows. This is an example of ____ sampling. -
CORRECT ANSWER -cluster
The most commonly used sampling methods in psychology are nonprobability sampling methods. -
CORRECT ANSWER -true
The technique of quota sampling is most similar to ____ sampling. - CORRECT ANSWER -
stratified random
, Dr. Sian varies the amount of a new sedative given to three groups of participants (0, 1, and 2 mg) and
then observes the reaction for each group. The 0-mg condition represents the ____ condition. -
CORRECT ANSWER -no treatment control
Dr. Nguyen is studying how amount of sleep influences mood for kindergarteners. A sample of 100
children is selected. Fifty children are allowed to sleep for 11 hours each night. The other 50 children are
awoken after 8 hours. After three nights, Dr. Nguyen records the mood for each child and compares the
two groups of scores. In this example, how many levels are there for the independent variable? -
CORRECT ANSWER -2
Simulation and field studies are used to increase the external validity of experiments. - CORRECT
ANSWER -true
A limitation of a single-factor multiple group design is that the ____. - CORRECT ANSWER -
mean differences between the groups become smaller as more groups are used
researchers typically try to ______. - CORRECT ANSWER -increase the differences between
treatments and decrease the variance within treatments
In an experiment examining the effects of background noise on people's ability to understand a verbal
message, one group of participants is given a comprehension quiz after listening to a passage being read
to them with no background noise. A week later, the same group of participants is given a comprehension
quiz after listening to a passage being read to them with 60 decibels of conversation as background noise.
This is an example of a ____ design. - CORRECT ANSWER -within-subjects
In a between-subjects design, to compare proportions between groups, an independent-measures t-test is
appropriate - CORRECT ANSWER -false
How many groups of participants would be needed to partially counterbalance four treatment conditions?
- CORRECT ANSWER -4
Questions and CORRECT Answers
A researcher conducts a study in which 50 rats are assigned to different treatments and tested. In the
study, the rats are called research ____. - CORRECT ANSWER -subjects
You have dinner reservations at 7:30 at a restaurant that is 30 minutes away and it is already 7:20, leading
you to conclude that you are going to be late. This is an example of using the empirical method. -
CORRECT ANSWER -false
In the scientific method, the actual research study is not done until after the researcher has formed a
hypothesis and made a specific prediction. - CORRECT ANSWER -true
An artist tries putting a freshly painted canvas outside during a rainstorm to see how the painting will
change from the pattern of the raindrops. Which method of acquiring knowledge is she using? -
CORRECT ANSWER -method of empiracism
Before searching in PsycINFO, it is wise to identify the correct subject terms for the topics you have
identified. - CORRECT ANSWER -true
What kind of validity requires that a researcher create two different measures of the same variable? -
CORRECT ANSWER -convergent
You can safely assume that ____. - CORRECT ANSWER -primary sources contain descriptions of
research by those who conducted it
_____________________ is a set of statements about the mechanisms that underlie a particular behavior
or thought process. - CORRECT ANSWER -A theory
Concurrent validity involves: - CORRECT ANSWER -demonstrating that the scores on the new
test correlate with scores on established tests
,A new survey of depression correlates positively and strongly with two other surveys of depression. This
is an example of: - CORRECT ANSWER -convergent validity
Which of the following would be an example of a self-report measure of anxiety? - CORRECT
ANSWER -a survey measuring anxiety
The Nuremberg Code outlines basic ethical guidelines for the ____. - CORRECT ANSWER -
treatment of human participants
The principles outlined in the Belmont Report are no longer used today. - CORRECT ANSWER -
false
Which form of deception is permitted in psychological research? - CORRECT ANSWER -
Observing participants who don't know they are being observed
The Tuskegee study involved injecting patients with live cancer cells without their knowledge or consent.
- CORRECT ANSWER -false
The most commonly used sampling method in psychological research is probably ____ sampling. -
CORRECT ANSWER -convenience
A teacher obtains a sample of children from a fifth-grade classroom by randomly selecting the third, fifth,
and eighth rows and taking all the students in those rows. This is an example of ____ sampling. -
CORRECT ANSWER -cluster
The most commonly used sampling methods in psychology are nonprobability sampling methods. -
CORRECT ANSWER -true
The technique of quota sampling is most similar to ____ sampling. - CORRECT ANSWER -
stratified random
, Dr. Sian varies the amount of a new sedative given to three groups of participants (0, 1, and 2 mg) and
then observes the reaction for each group. The 0-mg condition represents the ____ condition. -
CORRECT ANSWER -no treatment control
Dr. Nguyen is studying how amount of sleep influences mood for kindergarteners. A sample of 100
children is selected. Fifty children are allowed to sleep for 11 hours each night. The other 50 children are
awoken after 8 hours. After three nights, Dr. Nguyen records the mood for each child and compares the
two groups of scores. In this example, how many levels are there for the independent variable? -
CORRECT ANSWER -2
Simulation and field studies are used to increase the external validity of experiments. - CORRECT
ANSWER -true
A limitation of a single-factor multiple group design is that the ____. - CORRECT ANSWER -
mean differences between the groups become smaller as more groups are used
researchers typically try to ______. - CORRECT ANSWER -increase the differences between
treatments and decrease the variance within treatments
In an experiment examining the effects of background noise on people's ability to understand a verbal
message, one group of participants is given a comprehension quiz after listening to a passage being read
to them with no background noise. A week later, the same group of participants is given a comprehension
quiz after listening to a passage being read to them with 60 decibels of conversation as background noise.
This is an example of a ____ design. - CORRECT ANSWER -within-subjects
In a between-subjects design, to compare proportions between groups, an independent-measures t-test is
appropriate - CORRECT ANSWER -false
How many groups of participants would be needed to partially counterbalance four treatment conditions?
- CORRECT ANSWER -4
