Module 13: Systematic Reviews

Question 1

What is the go to database for locating a systemic review?

Answer 1

The Cochrane Collaboration

Question 2

When are sampling and data collection procedures spelled out in a systemic review?

Answer 2

In advance to protocol

Question 3

Do articles used in a systemic review need to be alike enough for meta-analysis to be performed?

Answer 3

No, DV can be operationalized differently across the studies

Question 4

What is meta-analysis?

Answer 4

Typically used in systemic reviews of evidence from quantitative studies (esp intervention testing). Reviewers used a common metric for combining evidence statistically to provide a summary of findings across studies

Question 5

What is meta-sythesis?

Answer 5

Systemic integrations of qualitative studies that are considered combinable in some way, following a specific methodology, to produce a narrative interpretation of the body of evidence included

Question 6

What is the sample used by meta-analysis?

Answer 6

Primary studies

Question 7

An advantage to meta-analysis is that consumers are able to conclude the relationships among variables is real, this enhances study _______.

Answer 7

Power

Question 8

What do meta-analytic studies measure?

Answer 8

Effect size

Question 9

The common metric created by a meta-analysis systemic review may be displayed in a ______. Why is this helpful?

Answer 9

forest plot

Helpful to visually inspected for heterogeneity

Question 10

What type of effects model is the underlying assumption that a single true effect size underlies all study results and that observed estimates vary only as a function of chance?

Answer 10

Fixed effects model

Question 11

What type of effects model assumes that each study estimates different, yet related, true effects and that the various effects are normally distributed around a mean effect size value?

Answer 11

Random effects model

Question 12

Why do some researchers believe that utilizing grey literature can decrease bias?

Answer 12

Using grey literature can decrease publication bias which occurs d/t the tendency for published studies to overrepresent statistical finding. Grey literature is unpublished work.

Question 13

How many researchers are usually involved in a meta-analysis?

Answer 13

More than one

Research librarians are also, often involved

Question 14

What is metamethod?

Answer 14

The study of the methodologic rigor of the studies included in the metasynthesis

Question 15

What refers to the analysis of the theoretical underpinnings on which the studies are grounded in metasynthesis?

Answer 15

Metatheory

Question 16

Both summaries or syntheses can be used in a metasummary of qualitative findings, what are the difference?

Answer 16

Summaries are descriptive synopses

Syntheses are interpretive explanations of the data

Question 17

What does a metasummary lay the foundation for?

Answer 17

A meta-synthesis

Question 18

A metasummary involves developing a list of abstracted findings from the primary studies and calculating ____ ____ ______.

Answer 18

Manifest effect sizes

Question 19

What is a frequency effect size?

Answer 19

In a qualitative metasummary, the percentage of reports that contain a given thematic finding. Indicates the magnitude of the finding.

Question 20

What is intensity effect size?

Answer 20

In a qualitative metasummary, the percentage of all thematic findings that are contained in any given report. Indicates concentration of finding

Question 21

Systemic review of mixed methods research is known as”

Answer 21

A third research community