Validating health status questionnaires in medicine: examples from a real life trial

In this paper, a project that required only one set of data entry is reported. In this, each participant response is entered into a record similar to an Excel record with the variable values reading across horizontally and is identified by the study number of the participant, the participant´s group (exerciser or control), and the number designating the time point in the study. This matrix sufficed for most of the reliability analysis, and for the calculation of intra-class correlation coefficients. These records could then be merged horizontally by study number to do repeated measures analysis and to calculate Cohen´s kappa.