Psychology 321 - Psychology Research Method » Spring 2022 » Experimental design quiz

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Question #1
Which of the following statements is NOT true about the research design below? R O1 X1 O2 R O1 X0 O2 R __ X1 O2 R __ X0 O2
A.   Only 2 groups received treatment, and 2 groups did not receive treatment
B.   Only two groups received a pretest, but all groups received a posttest
C.   Since two groups did not get a pretest, it was not a true experimental design
D.   Subjects were randomly assigned into the groups
E.   All these are true about the design
Question #2
The purpose of this study was to see if dialectical behavioral therapy would decrease suicide ideation. (N) Dialectical behavioral therapy (DBT) (X1) -> suicide ideation (01) (N) No DBT treatment (X0) -> suicide ideation (01) Which is NOT true about this design?
A.   Both groups got a posttest
B.   All these are true about the design
C.   The design is pre-experimental
D.   There was one treatment group and one comparison group
E.   There was no pretest
F.   The design is a static group comparison design
Question #3
What design fits for the following research study? Participants were randomly assigned into two groups. Both groups were given a pretest and a posttest. One group received treatment, and one group did not. Both groups received a posttest.
A.   Pretest posttest control group design
B.   Solomon 4-group design
C.   Pretest posttest nonequivalent group design
D.   Regression-discontinuity design
E.   One group pretest posttest design
Question #4
Which of the following is NOT true about the following research design? Participants were assigned into a treatment group (i.e., divorce recovery workshop) based on a first-come, first-serve basis. Specifically, the first 50 people who signed up were given the divorce recovery workshop. The next 50 people who signed up were put into a comparison group (i.e., they did not get the divorce recovery workshop class). Both groups were given a pretest and posttest.
A.   A cut-off score was used to assign participants into groups.
B.   This is a type of quasi-experimental design
C.   The design was a regression-discontinuity design
D.   All these are true about the design
E.   This is not a true experimental design because there was no random assignment and no true control group.
Question #5
Which of the following is NOT true about a pretest posttest nonequivalent group design?
A.   Subjects are randomly assigned into groups.
B.   All of these are true.
C.   This is a type of quasi-experimental design.
D.   There are two groups - one group gets treatment 1, one group gets treatment 2.
E.   Both groups get a pretest (01) and posttest (02)
Question #6
Which of the following is NOT true?
A.   All true experimental designs have random assignment into groups (i.e., experimental and true control groups), pretest(s), and posttest(s).
B.   There is no pretest and only one group in a one-shot case study design
C.   No pre-experimental designs will use random assignment; thus, there is no true control group. Also, there might not be a pretest in some pre-experimental designs.
D.   All these are true about the design
E.   All quasi-experimental designs have pretest(s) and posttest(s), along with a treatment group, but there is no true control group because of the lack of random assignment.
Question #7
Which is NOT true about the following design? (R) BMI pretest -> Nutrition education -> BMI posttest (R) No pretest -> Nutrition education -> BMI posttest (R) BMI pretest -> No nutrition education -> BMI posttest (R) No pretest -> No nutrition education -> BMI posttest
A.   Two groups got nutrition education, but 2 groups did not
B.   This design is the Solomon 4-group design
C.   BMI was used at both pretest and posttest; however only 2 groups got the BMI pretest.
D.   All these are true about the design
E.   This design helps determine whether the pretest is influencing the posttest
Question #8
Which design is demonstrated below? (N) Sex test (O1) -> Sex class (X1) -> Sex test (O2) (N) Sex test (O1) -> No sex class (X0) -> Sex test (O2)
A.   None of the choices are correct
B.   Pretest posttest nonequivalent group design
C.   Regression-discontinuity design
D.   Nonequivalent comparison group design
E.   Pretest posttest control group design
Question #9
Which of the following is NOT true?
A.   Comparing pretest scores to posttest scores is a within subjects variable.
B.   Interrupted time-series designs have multiple pretests and posttests
C.   Comparing a treatment group to a control group is a between subjects variable.
D.   A static comparison group design has a treatment group and comparison group, but no pretest.
E.   All these are true about the design

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