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Research Design and Implementation Checklist: Primary Research
  Flechtner-Mors M, Biesalski HK et al, 2004 Koh-Banerjee P, Chu NF et al, 2003 Liu S, Serdula MK et al, 1994 Sammel MD, Grisso JA et al, 2003 Sherwood NE, Jeffery RW et al, 2000 Tolstrup et al 2008 Wannamethee and Shaper 2003 Wannamethee et al 2004
Overall Quality Rating Neutral Positive Neutral Neutral Positive Neutral Neutral 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)
Yes
 
Yes
 
N/A
 
Yes
 
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
 
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
 
4. Is the intervention or procedure feasible? (NA for some epidemiological studies)
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
N/A
 
N/A
 
N/A
 
 
Validity Questions
1. Was the research question clearly stated?
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
 
3. Were study groups comparable?
Yes
 
N/A
 
No
 
Yes
 
N/A
 
Yes
 
N/A
 
Yes
 
4. Was method of handling withdrawals described?
Yes
 
Yes
 
N/A
 
N/A
 
Yes
 
Yes
 
Yes
 
Yes
 
5. Was blinding used to prevent introduction of bias?
No
 
N/A
 
N/A
 
???
 
Yes
 
No
 
No
 
Yes
 
6. Were intervention/therapeutic regimens/exposure factor or procedure and any comparison(s) described in detail? Were interveningfactors described?
Yes
 
N/A
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
N/A
 
7. Were outcomes clearly defined and the measurements valid and reliable?
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
???
 
No
 
No
 
8. Was the statistical analysis appropriate for the study design and type of outcome indicators?
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
9. Are conclusions supported by results with biases and limitations taken into consideration?
Yes
 
N/A
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
Yes
 
10. Is bias due to study’s funding or sponsorship unlikely?
No
 
Yes
 
???
 
N/A
 
Yes
 
Yes
 
Yes
 
Yes