EBP Flashcards

1
Q

T/F: Qualitative research is considered descriptive research.

A

true

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2
Q

What data is obtained with qualitative research?

A

interview or observational behaviors

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3
Q

T/F: A case study is considered descriptive research.

A

true

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4
Q

What is normative research?

A

form of descriptive research that investigates the standards of behavior, standard values for given characteristics of a sample (ex. gait)

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5
Q

Which of the following attempts to define a cause and effect relationship through group comparisons?

a) historical research
b) descriptive research
c) correlational research
d) experimental research
e) causal-comparative research
f) epidemiology

A

D) experimental research

AND

E) causal-comparative research

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6
Q

What’s the difference between the independent variable and the dependent variable?

A
IV = experiment or treatment (cause)
DV = the effect; change or difference in behavior
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7
Q

What’s a repeated measures design?

A

aka within-subject design:

- subjects serve as their own controls; randomly assigned to treatment or no treatment group

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8
Q

T/F: A cohort design study lacks a control group.

A

maybe true maybe false…. sometimes has a control, sometimes not

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9
Q

What is a quasi-experimental design?

A

aka cohort study

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10
Q

What is causal-comparative research?

A

similar to experimental, cause you’re trying to find cause/effect BUT

  • it’s ex post facto: cause aka IV has already occured, can’t be manipulated
  • now just looking at the effect on the DV

ex. brain injury patient (already occurred)

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11
Q

What is a directional hypothesis?

A

fancy words for research hypothesis; opposite of null hypothesis

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12
Q

What are the 4 data types? (think wine)

A

Nominal (tall or short, male or female)
Ordinal (ranks; intervals between aren’t =)
Interval
Ratio

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13
Q

T/F: An interval scale DOES have a true zero point.

A

false, no true zero

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14
Q

What’s an example of an ordinal scale?

A

manual muscle test grades (zero, trace, fair, good, etc)

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15
Q

What’s an example of an interval scale?

A

temperature (discrete distance between ranks that’s uniform throughout.. aka 1 degree)

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16
Q

What’s the difference between stratified sampling and systematic sampling?

A

stratified = individuals selected from a population from identified subgroups based on some predetermined characteristic (ex. by height, weight, or gender)

systematic = picking every 10th person

17
Q

If more than two groups are compared, what statistical test must be run?

A

ANOVA

18
Q

If only one group is being assessed, what statistical test must be run?

A

Chi square

19
Q

If only one group is being assessed, what statistical test must be run?

A

Chi square

20
Q

Can a t-test be run on ordinal data?

A

no, just interval

21
Q

What is effect size?

A
the size (quantity/magnitude) of differences between sample means
- allows test to find difference when one really does exist