INTRODUCTION Low health literacy contributes to health disparities. We sought to develop and evaluate a remotely administered tool to measure health literacy in health disparate populations. The basic research design involved asking the remotely administered questions in conjunction with an existing and valid measure of health literacy, the S-TOFHLA, to a non-representative convenience sample o...

To evaluate the sensitivity and specificity of Community Health Survey (CHS), we analyzed data from 11,217 participants aged ≥ 19 yr, in 13 cities and counties in 2008. Three healthcare utilization indices (admission, outpatient visits, dental visits) as comparative variables and the insurance benefit claim data of the Health Insurance Review & Assessment Service as the gold-standard were used....

Testing the Internal Validity of Compulsory School Reforms as Instrument for Years of Schooling In the large empirical literature that investigates the causal effects of education on outcomes such as health, wages and crime, it is customary to measure education with years of schooling, and to identify these effects using the exogenous variation provided by school reforms increasing compulsory e...

This study examined the psychometric properties and criterion validity of a newly developed battery of executive function (EF) tasks for use in early childhood. The battery was included in the Family Life Project (FLP), a prospective longitudinal study of families who were oversampled from low-income and African American families at the birth of a new child (N = 1,292). Ninety-nine percent (N =...

An essential component of an operational definition is measurement. A simple and accurate definition of measurement is the assignment of numbers to a variable in which we are interested. These numbers will provide the raw material for our statistical analysis. Measurement is so common and taken for granted that we seldom ask why we measure things or worry about the different forms that measurem...

background : the aim of training midwifery student is to increasing scientific and practical abilities in trainees in order to present caring health services and so the evaluation tools of these abilities has a great importance. for evaluating considered tools and for the reason of midwifery theoretical special courses importance this study tries to evaluate content validity, criterion validity...