Jennifer Coates|Parke Wilde|Patrick Webb|Beatrice Lorge Rogers|Robert F. Houser
Comparison of a Qualitative and a Quantitative Approach to Developing a Household Food Insecurity Scale for Bangladesh
Tufts University|Tufts University|Tufts University|Tufts University|Tufts University
paper compares qualitative quantitative rasch method item assessment developing content food insecurity scale bangladesh data derived bangladesh food insecurity measurement validation study researchers collected 2 rounds ethnographic information 3 rounds conventional household survey data 2001 2003 qualitative method scale development relied content experts respondents evaluate household food insecurity items generated ethnographic research quantitative method applied rasch model assess fit items using representative survey data rasch model used test differential item functioning dif across diverse demographic geographic subgroups qualitative assessment flagged discarded 10 items leaving 13 rasch assessment infit outfit flagged 3 items rasch dif test discarded another 10 items leaving total 10 items raschderived scale 2 scales contained 8 items qualitatively quantitatively derived scales highly correlated r 096 p 001 2 methods located 90 households food insecurity tercile convergence lends added confidence use either scale identifying foodinsecure households different regions bangladesh multiple methods continue applied systematic transparent way lend additional credence results converge pinpoint directions clarification