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.