Tests of measurement invariance are essential to determining whether individual scores or group averages are comparable across populations. While international comparisons of mean IQ scores are common, tests of measurement invariance for intelligence test batteries (necessary for comparisons to be empirically supported) are rare. In this study,…

A growing body of literature in low- and middle-income countries is challenging the long-held assumption that the respondent and interviewer should be strangers. We conducted a qualitative study in Burkina Faso comprised of in-depth interviews and focus group discussions to explore interviewers' experiences of collecting data on sexual and…

This article is the fourth in a series arguing that there is serious mismeasurement of enrolment in early childhood development (ECD) and in the early grades of education systems in many countries, especially, and most damagingly, in those making the most progress on access to schooling and in the sustainable development goals. Other reports have…