GU Research Ch 27 Mod 13

  1. In a ________ model, the underlying assumption is that a single true effect size underlies all study results and that observed estimates vary only as a function of chance.
    fixed effects
  2. A  _______ 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.
    random effects
  3. ________ involve splitting the effect size information from studies into distinct categorical groups (ex: gender).
    subgroup analyses
  4. In a systematic review, reviewers use methodocial procedures that are ______ and ______.
    reproducible and verifiable
  5. In a _______, reviewers use a common metric for combing evidence statistically.
  6. Three advantages of meta-analyses.
    • objectivity
    • precision
    • power
  7. The probability of detecting a true relationship b/w variables.
    power (advantage to meta-analysis)
  8. Estimates of effect size across most studies yield smaller CI's than individual studies. How does this affect precision?
    It is enhanced
  9. A means of refining the specific question for the systematic review.
    Scoping review
  10. The preliminary investigation that clarifies the range and nature of the evidence base.
    scoping review
  11. A ______ review addresses broad questions and uses flexible procedures.
  12. The inverse variance method uses the inverse of the variance of the __________ as weight.
    effect size estimate
  13. _______ across studies may rule out the possibility that a meta-analysis can be done
  14. How can visual inspection of heterogeneity be accomplished?
    by constructing a forest plot
  15. A random effects meta-analysis incorporates heterogeneity into the analysis, but is intended primarily to address what?
    variation that cannot be explained
  16. ________ analyses involve splitting the effect size information from studies into distinct categorical groups (ex: gender).
  17. What might be appropriate when variables thought to influence study heterogeneity are continuous or there is a mix of continuous and categorical factors?
  18. _______ involves predicting the effect size based on possible explanatory factors.
  19. What is the most usual way to examine the possibility of publication bias among studies in the meta-analysis?
    construct a funnel plot
  20. In a _____, effects from individual studies are plotted on the horizontal axis and precision is plotted on the vertical axis.
    funnel plot
  21. A strategy for addressing publication bias in meta-analysis.
    compute a fail-safe number
  22. What estimates the number of studies reporting nonsig results that would be needed to reverse the conclusion of a significant effect in a meta-analysis?
    fail-safe number
  23. Involves carefully peeling away the surface layers of studies to find their hearts and souls in a way that does the least damage to them.
  24. Noble & Hare's methods of integration are called _________.
  25. A meta-ethnography should be _____ and not ___ and should focus on constructing ____ rather than _______.
    • interpretive
    • aggregative
    • interpretations
    • analyses
  26. What is the Paterson, Thorne, Canam, and Jillings method of metasynthesis?
  27. Metastudy's 3 components.
    • meta-data analysis
    • metamethod
    • methatheory
  28. The study of results of reported research in a specific substantive area of investigation by means of analyzing the processed data.
    Metadata analysis
  29. The study of the methodologic rigor of the studies included in the metasynthesis.
  30. The analysis of the theoretical underpinnings on which the studies are grounded.
  31. Indicates the magnitude of the findings.
    Frequency effect size
  32. Number of reports with unduplicated info that contain a given finding, divided by all unduplicated reports.
    Frequency effect size
  33. Indicates the concentration of findings within each report.
    intensity effect size
  34. Calculated by dividing the number of different findings in a given report, divided by the total number of findings in all reports.
    intensity effect size
  35. __________ reviews use disciplined and auditable procedures to integrate and synthesize findings from qual, quant, and mixed methods.
    systematic mixed studies
  36. Three designs of systematic mixed studies reviews.
    • segregated
    • integrated
    • contigent
  37. Two common effect size indexes in nursing.
    • d (standardized mean difference)
    • odds ration
  38. Effects from individual studies are pooled to yield an estimate of the population effect size by calculating a _______ of effects, often using the _________ as the weight.
    • weighted average
    • inverse variance
  39. The two reporting guidelines - one for RCTs, one for meta-analyses of observational studies.
    • PRISMA (RCT)
    • MOOSE (observational)
  40. _________ involve a discovery of essential features of a body of findings and a transformation that yields new insights and interpretations.
Card Set
GU Research Ch 27 Mod 13
Research Ch 27 Systematic Reviews