TABLE 1.

Study quality assessment criteria and coding schema¹

Criteria	Unmet/unmentioned responses (score = 0)	Partially met responses (score = 1)	Completely met responses (score = 2)
A priori aim/hypothesis specific to food insecurity	No mention of food insecurity in aim/hypothesis	Implications of food insecurity in aim/hypothesis (e.g., hunger or difficulty affording food)	Explicit mention of food insecurity in aim/hypothesis
Study population clearly specified and defined	No mention of the population the sample is meant to represent	Population partially and/broadly defined	Population clearly defined
Participant recruitment	Convenience or purposive sampling	N/A	Random sample or census
Sample size, n	<100	≥100 and ≤999	≥1000
Sufficient sample reporting	No report of response rate or nonresponse bias evaluation	Report response rate or nonresponse bias evaluations	Report response rate and nonresponse bias evaluations
Reliable and valid measures of food insecurity	Measures without prior pilot or validity/reliability testing	Measures with limited testing or tested in different population	Measures with validity/reliability testing in related population

¹N/A, not applicable.