The classic experiment with random assignment of participants controls for
measurement bias.
Qualitative measures rely on interviews that are usually open-ended with in-depth
probes.
Sometimes it is appropriate to conduct single-case experiments with unstable baselines.
Suppose that Jane Doe, MSW properly engages in all of the steps of the EBP process,
and then decides that the best evidence indicates that the quality of the therapeutic
alliance explains all the variation in client outcome and that the intervention chosen
explains none of the variation. In other words, she accepts the Dodo Bird verdict, based
on the studies that supported that verdict. This would mean that Jane is NOT really
being evidence-based in her practice.
Number of children is an example of a variable at the ratio level of measurement.
The mean or median can be used to describe the central tendency of the variable
“ethnicity.”
Any organization wishing to receive federal research support must establish an IRB that
reviews all of the organization’s research proposals involving human participants and
rules on their ethics.
The spread of telephone answering machines has improved the quality of data collected
by telephone surveys.
Qualitative studies are more likely than quantitative studies to specify their research
procedures in advance.
A meta-analysis is a systematic review that employs and emphasizes sophisticated
statistical procedures that amalgamate the separate statistical findings of the individual
studies.
Science offers total protection against the errors that nonscientists commit in casual,
day-to-day inquiry.
Latent coding has the advantage of tapping underlying meanings, while reliability is an
advantage of manifest coding
Qualitative research methods are more likely to tap the deeper meanings of human
experiences.
Sampling error can be reduced through an increase in the sample size of probability
samples.
5. The one-group pretest-posttest design controls for passage of time.
A demonstrated lack of response bias is more important than a high response rate.
The following is an example of a good hypothesis: “Social work practitioners who work
in mental health agencies do not care adequately for the chronically mentally ill.”