Policy Research for Front of Package Nutrition Labeling: Environmental Scan and Literature Review. Table 2-3. Quality Criteria Used to Score Identified Articles

02/28/2011

Table 2-3. Quality Criteria Used to Score Identified Articles

Quality CriterionScore
1.   Comparison or control group1 = yes, 0 = no
2a. Randomization: Randomized assignment of intervention and controls0.5 = yes, 0 = no
2b. Randomization: Probability-based selection of sample0.5 = yes, 0 = no
3.   Adequate sample size (i.e., 30+ per group)1 = yes, 0 = no
4.   Statistical control for confounding factors1 = yes, 0 = no
5a. Clear description of the stimulus/or intervention and control condition1 = yes, 0 = no
5b. Peer review statusSubtract 0.5 point if the study had not gone through peer review