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Quality Rating Summary


Research Design and Implementation Checklist: Primary Research
  Alexy U, Sichert-Hellert W et al, 1999 Alexy U, Sichert-Hellert W et al, 2004 Berkey CS, Rockett HRH, et al 2000 Bogaert N, Steinbeck KS et al 2003 Boulton TJC & Magarey AM. 1995 Caballero et al 2003 Carruth BR, Skinner JD 2001 Davison and Birch, 2001 IJO Eck LH, Klesges RC, et al. 1992 Francis LA, Lee Y, Birch LL 2003 Gazzaniga JM & Burns TL. 1993 Hakanen M, Lagstrom H et al, 2006 Johnson et al 2008; Am J Clin Nutr Karaolis-Danckert et al. 2007 Klesges RC, Klesges LM et al, 1995 Lauer RM, Obarzanek E et al, 1995 Lee Y, Mitchell DC, et al, 2001 Maffeis C, Talamini G, et al 1998 long Magarey AM, Daniels LA, et al 2001 Newby PK, Peterson KE et al, 2003 Niinikoski H, Lagstrom H et al, 2007 Robertson SM. et al. 1999 Rolland-Cachera MF, Deheeger M et al, 1995 Scaglioni S, Agostoni C, et al, 2000 Shea S, Basch CE et al, 1993 Skinner JD, Bounds W et al 2003 Skinner JD, Bounds W et al 2004 Wang Y, Ge K, Popkin BM, 2003
Overall Quality Rating Positive Positive Positive Positive Positive Positive Positive Positive Neutral Positive Positive Positive Positive Positive Positive Positive Positive Positive Positive Positive Positive Positive Neutral Positive Positive Positive 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
 
Yes
 
N/A
 
N/A
 
N/A
 
Yes
 
N/A
 
Yes
 
N/A
 
N/A
 
Yes
 
Yes
 
N/A
 
Yes
 
Yes
 
Yes
 
Yes
 
N/A
 
N/A
 
N/A
 
Yes
 
N/A
 
Yes
 
N/A
 
Yes
 
N/A
 
N/A
 
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
 
N/A
 
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
 
N/A
 
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
 
Yes
 
N/A
 
N/A
 
N/A
 
Yes
 
N/A
 
N/A
 
N/A
 
N/A
 
Yes
 
Yes
 
N/A
 
Yes
 
Yes
 
Yes
 
N/A
 
N/A
 
N/A
 
N/A
 
Yes
 
N/A
 
N/A
 
N/A
 
Yes
 
N/A
 
N/A
 
N/A
 
 
Validity Questions
1. Was the research question clearly stated?
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
 
Yes
 
Yes
 
Yes
 
2. Was the selection of study subjects/patients free from bias?
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
 
3. Were study groups comparable?
N/A
 
Yes
 
N/A
 
Yes
 
N/A
 
Yes
 
Yes
 
N/A
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
N/A
 
Yes
 
Yes
 
Yes
 
N/A
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
4. Was method of handling withdrawals described?
No
 
Yes
 
Yes
 
Yes
 
No
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
???
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
N/A
 
No
 
Yes
 
Yes
 
No
 
Yes
 
5. Was blinding used to prevent introduction of bias?
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
N/A
 
Yes
 
Yes
 
No
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
???
 
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
 
7. Were outcomes clearly defined and the measurements valid and reliable?
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
 
8. Was the statistical analysis appropriate for the study design and type of outcome indicators?
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
 
9. Are conclusions supported by results with biases and limitations taken into consideration?
No
 
Yes
 
Yes
 
Yes
 
Yes
 
N/A
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
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
 
 
 

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