Nutrition Evidence Library
HOME CONTACT ABOUT HELP
Increase Font Size  Decrease Font Size  Download as Excel   View as PDF   Print  
Quality Rating Summary


Research Design and Implementation Checklist: Primary Research
  Allison DB et al .1997 Amador LF et al 2006 Arnold AM, Newman AB et al, 2010 Corrada MM et al 2006 de Groot CP et al. 2002 Dey DK et al 2001 Diehr P et al 2008 Diehr P, Bild DE et al, 1998 Dolan CM, Kraemer H et al, 2007 Ellekjaer H, Holmen J et al, 2001 Grabowski DC and Ellis JE 2001 Graham JE, Snih SA et al, 2009 Inoue K et al 2006 Janssen I, 2007 Janssen I, Katzmarzyk PT and Ross R 2005 Kalmijn S et al 1999 Keller HH and Ostbye T, 2005 Knudtson MD, Klein BE et al, 2005 Kulminski AM et al 2008 Locher JL et al 2007 Mazza A et al 2007 Newman AB et al 2001 Nguyen ND et al 2007 Payette H et al 1999 Price GM, Uauy R et al, 2006 Reynolds MW et al 1999 Rodriguez C, Calle EE et al, 2002 Shea MK, Houston DK et al, 2010 Sorsensen TIA, Rissanen A et al, 2005 Sullivan DH et al 2004 Sullivan DH, Morley JE et al, 2002 Takata Y et al 2007 Vischer UM et al 2009 Volpato S et el 2004 Weiss A, Beloosesky Y et al, 2008 Woo J, Ho SC et al, 2002 Woo, Ho et al 2001 Yaari S and Golbourt U, 1998 Yang Z, Bishai D and Harman J 2008
Overall Quality Rating Neutral Positive Positive Neutral Neutral Positive Neutral Neutral Positive Positive Neutral Positive Positive Positive Positive Positive Positive Positive Neutral Positive Positive Positive Positive Positive Positive Positive Positive Positive Positive Neutral Neutral Positive Neutral Positive Positive Neutral Neutral Positive Positive
Relevance Questions
1. Would implementing the studied intervention or procedure (if found successful) result in improved outcomes for the patients/clients/population group? (Not Applicable for some epidemiological studies)
N/A
 
N/A
 
N/A
 
N/A
 
N/A
 
N/A
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
N/A
 
N/A
 
N/A
 
N/A
 
N/A
 
N/A
 
N/A
 
N/A
 
N/A
 
N/A
 
N/A
 
N/A
 
Yes
 
N/A
 
Yes
 
Yes
 
Yes
 
N/A
 
Yes
 
N/A
 
N/A
 
N/A
 
Yes
 
Yes
 
N/A
 
Yes
 
N/A
 
2. Did the authors study an outcome (dependent variable) or topic that the patients/clients/population group would care about?
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
3. Is the focus of the intervention or procedure (independent variable) or topic of study a common issue of concern to nutrition or dietetics practice?
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
4. Is the intervention or procedure feasible? (NA for some epidemiological studies)
N/A
 
N/A
 
N/A
 
N/A
 
N/A
 
N/A
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
N/A
 
N/A
 
N/A
 
N/A
 
N/A
 
N/A
 
N/A
 
N/A
 
N/A
 
N/A
 
N/A
 
N/A
 
Yes
 
N/A
 
Yes
 
Yes
 
Yes
 
N/A
 
Yes
 
N/A
 
N/A
 
N/A
 
Yes
 
Yes
 
N/A
 
Yes
 
N/A
 
 
Validity Questions
1. Was the research question clearly stated?
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
2. Was the selection of study subjects/patients free from bias?
Yes
 
Yes
 
Yes
 
Yes
 
???
 
Yes
 
Yes
 
No
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
No
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
3. Were study groups comparable?
Yes
 
Yes
 
Yes
 
Yes
 
???
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
N/A
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
N/A
 
Yes
 
Yes
 
Yes
 
Yes
 
No
 
No
 
Yes
 
Yes
 
4. Was method of handling withdrawals described?
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
No
 
No
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
???
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
No
 
Yes
 
5. Was blinding used to prevent introduction of bias?
No
 
Yes
 
No
 
???
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
No
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
No
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
No
 
Yes
 
No
 
Yes
 
Yes
 
Yes
 
No
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
6. Were intervention/therapeutic regimens/exposure factor or procedure and any comparison(s) described in detail? Were interveningfactors described?
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
7. Were outcomes clearly defined and the measurements valid and reliable?
No
 
Yes
 
Yes
 
No
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
No
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
No
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
No
 
No
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
8. Was the statistical analysis appropriate for the study design and type of outcome indicators?
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
No
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
???
 
Yes
 
Yes
 
Yes
 
Yes
 
No
 
Yes
 
Yes
 
Yes
 
9. Are conclusions supported by results with biases and limitations taken into consideration?
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
No
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
10. Is bias due to study’s funding or sponsorship unlikely?
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
 
 

CNPP Home  |  USDA.gov  |  USA.gov  |  White House  | FOIA  | Accessibility Statement
Privacy Policy  |  Non-Discrimination Statement  |  Information Quality  | Policies and Links

Source: USDA Nutrition Evidence Library, 2010.                 Powered by Webauthor.com