CHAPTER 10
This presentation is the property of its rightful owner.
Sponsored Links
1 / 8

Research Synthesis (Meta-Analysis) PowerPoint PPT Presentation


  • 122 Views
  • Uploaded on
  • Presentation posted in: General

CHAPTER 10. CHAPTER 1. Research Synthesis (Meta-Analysis). Research Synthesis (Meta-Analysis). Contrasting Meta-Analysis With Literature Review. •How thorough was the literature search?. -Computer search and hand search -Which journals? -Theses and dissertations included?.

Download Presentation

Research Synthesis (Meta-Analysis)

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


No slide title

CHAPTER 10

CHAPTER 1

Research Synthesis

(Meta-Analysis)

Research Synthesis

(Meta-Analysis)


No slide title

Contrasting Meta-Analysis

With Literature Review

•How thorough was the literature search?

-Computer search and hand search

-Which journals?

-Theses and dissertations included?

•On what basis were studies included or excluded?

-Perceived internal validity

-Sample size

-Design

(continued)


No slide title

Contrasting Meta-Analysis

With Literature Review

•How did the author arrive at conclusions?

-Vote counting

-Differential weighting


No slide title

Purpose of Meta-Analysis

•Answer an important question when adequate

literature is available.

•Report a definitive methodology for the review.

•Quantify the results of studies using a standard

metric.


No slide title

Steps in a Meta-Analysis

•Identification of a problem

•Literature searched by specified means

•Review of studies to determine inclusion or

exclusion

•Careful reading and evaluation to identify and

code important study characteristics

•Calculating effect size

•Applying appropriate statistical analyses

•Reporting all the steps and outcomes in a paper


No slide title

Calculating Effect Size


No slide title

Distribution Overlap When Group 1 and Group 2

Are 1s Apart (ES = 1.0)


No slide title

Methodological Considerations

in Meta-Analysis

•Deciding what to code: Using theory and empirical

studies to decide on characteristics of importance

•Choosing the standard deviation for ES

-Experimental versus control

-Nonrandomly formed groups (sex, age)

-Pretest to posttest

•Correcting ES

•Weighting ES


  • Login