The Multiple Resources Questionnaire (MRQ) is an easily-administered 17-item measure for subjective workload assessment. It is based on an expansion of Multiple Resource Theory as guided by factor analytic studies of lateralized processes, and aims to provide high diagnosticity by identifying the load on specific resources. Here the full questionnaire is reproduced and reliability data from two studies are reported. Across a number of computer-based games and laboratory tasks, interrater reliabilities (r) are found to range from +.57 to +.83, with reliabilities expected to approximate 0.9 when data are aggregated over 8 or more raters. Validity data are reported in a companion article.
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