RESEARCH METHODS PSYCH 302
EXAM 3 QUESTIONS AND ANSWERS
quasi-experiment - Correct Answers -An experiment in which investigators make use of
control and experimental groups that already exist in the world at large. Also called a
mixed design.
No random assignment.
Experiment - Correct Answers -a study or research design in which we manipulate
variables. The experimenter has complete control over assignment of subjects to
conditions and presentation of condition to participants
non-experiment - Correct Answers -Experimenter has no control over the presentation
of the IVs. You can only record what happens in a certain situation (also no random
assignment). Example: survey
control continuum - Correct Answers -degree of researcher control over confounded
variables
internal validity - Correct Answers -extent to which we can draw cause-and-effect
inferences from a study (is the experiment measuring what it is supposed to be
measuring)
external validity - Correct Answers -extent to which we can generalize findings to real-
world settings
When is it unethical to randomly assign people to a group in an experiment? - Correct
Answers -When that group is hazardous or detrimental to one's health
(ex: gang membership, religious affiliation, hazards like second-hand smoke, being
retained in grade, experience an earthquake)
single factor design without manipulation - Correct Answers -the IV = group membership
single factor design with manipulation - Correct Answers -a quasi experiment: IV is
confounded with group membership, group 1 is selected to be under one condition and
the other group will be under another condition
mixed factorial design with manipulation - Correct Answers -A quasi experiment: One
between subjects quasi-experimental IV that is not manipulated.
One within subjects experimental IV that is manipulated
, nonequivalent control group design - Correct Answers -a quasi-experimental study that
has at least one treatment group and one comparison group, but participants have not
been randomly assigned to the two groups
delayed control group design - Correct Answers -A research design that includes
groups receiving the same treatment, tested at different points in time to better
understand the time course of the treatment effects.
(pre and post-testing of control group is not simultaneous with the experimental group;
instead delayed/at different times)
interrupted time series design - Correct Answers -research design that allows the same
group to be compared over time by considering the trend of the data before and after
experimental manipulation
multiple time series design - Correct Answers -interrupted time series design (research
design that allows the same group to be compared over time by considering the trend of
the data before and after experimental manipulation)
with a control group
What threats do the multiple time series design help rule out? - Correct Answers -
Because it has a control group, it helps rule out maturation and testing threats
Introspection - Correct Answers -examination of one's own thoughts and feelings;
careful reporting of one's own experiences
Concurrent Correlational Study - Correct Answers -compares two or more different
characteristics from the same group of people and explains how two characteristics vary
together and how well one can be predicted from knowledge of the other; IV and DV
collected at the same time.
postdictive correlational design - Correct Answers -DV has already been occurring
before the IV.
case study - Correct Answers -nonexperimental research design, researcher
investigates a particular existing situation, event, person, or animal that has come to his
or her attention
single - subjects tradition assumptions - Correct Answers -- Your assuming that others
in the population are similar to the subject
- Assuming behavior is affected by an environmental (external) variable
individual differences tradition assumptions - Correct Answers -- Most of the variability is
the subject's behavior is intrinsic and inevitable (internal influences)
- Variability should be measured and statistically controlled
EXAM 3 QUESTIONS AND ANSWERS
quasi-experiment - Correct Answers -An experiment in which investigators make use of
control and experimental groups that already exist in the world at large. Also called a
mixed design.
No random assignment.
Experiment - Correct Answers -a study or research design in which we manipulate
variables. The experimenter has complete control over assignment of subjects to
conditions and presentation of condition to participants
non-experiment - Correct Answers -Experimenter has no control over the presentation
of the IVs. You can only record what happens in a certain situation (also no random
assignment). Example: survey
control continuum - Correct Answers -degree of researcher control over confounded
variables
internal validity - Correct Answers -extent to which we can draw cause-and-effect
inferences from a study (is the experiment measuring what it is supposed to be
measuring)
external validity - Correct Answers -extent to which we can generalize findings to real-
world settings
When is it unethical to randomly assign people to a group in an experiment? - Correct
Answers -When that group is hazardous or detrimental to one's health
(ex: gang membership, religious affiliation, hazards like second-hand smoke, being
retained in grade, experience an earthquake)
single factor design without manipulation - Correct Answers -the IV = group membership
single factor design with manipulation - Correct Answers -a quasi experiment: IV is
confounded with group membership, group 1 is selected to be under one condition and
the other group will be under another condition
mixed factorial design with manipulation - Correct Answers -A quasi experiment: One
between subjects quasi-experimental IV that is not manipulated.
One within subjects experimental IV that is manipulated
, nonequivalent control group design - Correct Answers -a quasi-experimental study that
has at least one treatment group and one comparison group, but participants have not
been randomly assigned to the two groups
delayed control group design - Correct Answers -A research design that includes
groups receiving the same treatment, tested at different points in time to better
understand the time course of the treatment effects.
(pre and post-testing of control group is not simultaneous with the experimental group;
instead delayed/at different times)
interrupted time series design - Correct Answers -research design that allows the same
group to be compared over time by considering the trend of the data before and after
experimental manipulation
multiple time series design - Correct Answers -interrupted time series design (research
design that allows the same group to be compared over time by considering the trend of
the data before and after experimental manipulation)
with a control group
What threats do the multiple time series design help rule out? - Correct Answers -
Because it has a control group, it helps rule out maturation and testing threats
Introspection - Correct Answers -examination of one's own thoughts and feelings;
careful reporting of one's own experiences
Concurrent Correlational Study - Correct Answers -compares two or more different
characteristics from the same group of people and explains how two characteristics vary
together and how well one can be predicted from knowledge of the other; IV and DV
collected at the same time.
postdictive correlational design - Correct Answers -DV has already been occurring
before the IV.
case study - Correct Answers -nonexperimental research design, researcher
investigates a particular existing situation, event, person, or animal that has come to his
or her attention
single - subjects tradition assumptions - Correct Answers -- Your assuming that others
in the population are similar to the subject
- Assuming behavior is affected by an environmental (external) variable
individual differences tradition assumptions - Correct Answers -- Most of the variability is
the subject's behavior is intrinsic and inevitable (internal influences)
- Variability should be measured and statistically controlled
