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 two groups received a pretest, but all groups received a posttest
B.   Only 2 groups received treatment, and 2 groups did not receive treatment
C.   Subjects were randomly assigned into the groups
D.   All these are true about the design
E.   Since two groups did not get a pretest, it was not a true experimental 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.   There was one treatment group and one comparison group
B.   There was no pretest
C.   The design is pre-experimental
D.   All these are true about the design
E.   The design is a static group comparison design
F.   Both groups got a posttest
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.   Solomon 4-group design
B.   Pretest posttest control group design
C.   Regression-discontinuity design
D.   Pretest posttest nonequivalent group 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.   All these are true about the design
D.   This is not a true experimental design because there was no random assignment and no true control group.
E.   The design was a regression-discontinuity design
Question #5
Which of the following is NOT true about a pretest posttest nonequivalent group design?
A.   All of these are true.
B.   This is a type of quasi-experimental design.
C.   Subjects are randomly assigned into groups.
D.   Both groups get a pretest (01) and posttest (02)
E.   There are two groups - one group gets treatment 1, one group gets treatment 2.
Question #6
Which of the following is NOT true?
A.   There is no pretest and only one group in a one-shot case study design
B.   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.
C.   All true experimental designs have random assignment into groups (i.e., experimental and true control groups), pretest(s), and posttest(s).
D.   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.
E.   All these are true about the design
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.   This design is the Solomon 4-group design
B.   BMI was used at both pretest and posttest; however only 2 groups got the BMI pretest.
C.   Two groups got nutrition education, but 2 groups did not
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.   Pretest posttest nonequivalent group design
B.   None of the choices are correct
C.   Regression-discontinuity design
D.   Pretest posttest control group design
E.   Nonequivalent comparison group design
Question #9
Which of the following is NOT true?
A.   Interrupted time-series designs have multiple pretests and posttests
B.   All these are true about the design
C.   A static comparison group design has a treatment group and comparison group, but no pretest.
D.   Comparing pretest scores to posttest scores is a within subjects variable.
E.   Comparing a treatment group to a control group is a between subjects variable.

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