Per survey try used contained in this half a dozen so you can yearly of date your candidate entered this new test by making use of to have a good loan and being placed in the new marginal group. To avoid potential impulse bias involving the Procedures and you will Handle groups, neither new survey organization nor new respondents have been advised concerning check out otherwise any association on Bank. I told brand new questionnaire company that target households’ email address originated in a great «individual database inside the South Africa.»
Our means minimized about three prospective resources of prejudice throughout the studies.