Feedback on this In nursing research and statistics, "measurement" means assessment, or "collecting quantitative data using a tool". The product of measurement is data that can be observed and recorded. To facilitate this, numbers may be assigned to measurement to represent the amount of a study variable. Different methods of measurements can be categorized into physiological, observational, questionnaires, scales, interviews and specialized measurements such as Q-sort method etc. Errors in measurement occur when measured values obtained do not equal the true valuewhich can ultimately lead to bias in intervention effect. Add reaction Flag Post Bookmark Post