Posted: April 5th, 2015

350 Chapters 5 and 6

350 Chapters 5 and 6

Complete 30 questions on assignment with no corrections to make.

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1.    A pretest/post-test control group or experimental design always involves.
a.    random sampling
b.    random assignment
c.    nonequivalent comparison groups

2.    One potential ethical problem of designs with control groups is that those in the control groups will be “denied treatment”.  The rigor of this design can be maintained and the “denial of treatment” issue addressed by:
a.    assigning the control group to a waiting list
b.    using a comparison rather than a control group
c.    assigning the control group to an alternative program/intervention
d.    either a or c

3.    A control group in social work research is usually             .
a.    a group in which the intervention to be evaluated is applied
b.    a comparison group which is randomly assigned
c.    a group which is the result of random sampling
d.    none of the above

4.    What aspect of a pretest/post-test comparison research design presents a threat to internal validity?
a.    the experimental group
b.    the comparison group
c.    lack of random assignment

5.    The major threat to internal validity in a one group post-test only research design is                         .
a.    testing
b.    instrumentation
c.    history
d.    all of the choices

6.    The primary purpose of research design involves                 .
a.    establishing causality
b.    developing a research question
c.    analyzing the results

7.    Reactive effects in a research design refer to             .
a.    the affect that factors other than the intervention may have on the outcome
b.    the awareness of subjects that they are involved in an “experiment”
c.    the affect of subjects dropping out of the program

8.    External validity refers to                 .
a.    the generalizability of the results
b.    the extent to which the program is responsible for any change in the clients
c.    the data collection methods

9.    In the language of experimentation, a “pretest” refers to:
a.    the measurement of the independent variable before it is applied to participants
b.    a measure of the dependent variable before participants are exposed to the independent variable
c.    the random assignment of participants to experimental and control conditions
d.    a measure of the dependent variable after the participants are exposed to the independent variable

10.    Which of the following is not a potential threat to the internal validity of experiments?
a.    maturation
b.    instrumentation
c.    history – treatment interaction
d.    selection
e.    history

11.    Internal validity can be influenced by
a.    The type of data collected
b.    The data collection time
c.    The presence of comparison groups
d.    b and c

12.    A pre experimental design has greater internal validity than an experimental design.
a.    True
b.    False

13.    Mortality in research design refers to
a.    the death of some of the subjects
b.    participants dropping out of some of the groups
c.    a threat to internal validity
d.    b and c

14.    Maturation in research design refers to
a.    The participants aging
b.    The participants changing in some way over time
c.    The researcher learning more about the study
d.    The researcher getting older

15.    The type of design that measures several times before the intervention and several times after the intervention is referred to as _____________ design.
a.    a pretest/ post-test comparison
b.    a pretest/ post-test control
c.    a and b
d.    a time series

16. The ABAB or reversal practice evaluation design offers the advantage over other practice evaluation designs by             .
a.    being able to be used with any behaviors
b.    establishing with greater validity the effectiveness of a specific intervention
c.    being able to be used with a wide range of clients

17. Baseline, in practice evaluation designs, refers to             .
e.    the data collected prior to the intervention
f.    the data collected after the intervention
g.    the intervention

18. When we use an AB design, our conclusions can only be tentative because         .
h.    the client doesn’t have to cooperate
i.    the design is not a research design
j.    there is no control for the effect of other variables

19.    Practice evaluation can include:
a.    process recordings
b.    mentoring
c.    single system studies
d.    all of the choices

20.    Single system designs offer an advantage over process recordings as a way of evaluating our practice because:
a.    they can provide some understanding of the effectiveness of the intervention
b.    they go beyond a description of practice
c.    they control for some alternative explanations
d.    all of the choices

21.    Which of the following is not one of the advantages of practice evaluation?
a.    it promotes better service for clients
b.    it promotes research activity
c.    the results are immediately generalizable to other settings
d.    all of the choices are advantages

22.    Which of the following characterize rapid assessment instruments, which are often used in single-subject research?
a.    They are short
b.    They can be scored in a few minutes
c.    They have low reliability
d.    A and B

23.    How many interventions should be implemented during the intervention phase of a single-subject design?
a.    One
b.    Two
c.    Three
d.    Four
e.    The most efficacious combination known to the clinician

24.    The most desirable type of baseline for a single-subject design is:
a.    A rising trend
b.    A stable one
c.    A descending trend
d.    An unstable one
e.    The pattern of the baseline makes little difference when assessing treatment     effects

25.    Which of the following is not one of the advantages of practice evaluations?
a.    It promotes better service for clients
b.    It promotes research activity
c.    The results are immediately generalizable to other settings
d.    All of the above are advantages

26.    Ways of monitoring interventions include:
a.    Case studies
b.    Process recordings
c.    Controlled studies
d.    A and B

27.    An ABC design is more likely to give information about the efficacy of the intervention than the
a.    ABAB design
b.    AB
c.    No design at all
d.    A and B

28.    The limitations of practice evaluation designs include
a.    Limited objectivity in the analysis of the findings
b.    Limited application
c.    Limited practicality
d.    All of the choices

29.    The strengths of practice evaluation include
a.    Building knowledge for practice
b.    The strong internal validity of the findings
c.    The strong external validity of the findings
d.    The generalizability of the results

30.    The reversal or ABAB design cannot be thought of as unethical because it
a.    Places the client at risk
b.    Helps establish the effectiveness (or not) of the intervention
c.    Withdraws the intervention
d.    All of the choices