The Check Sheet is primarily a data collection tool that allows data being collected to be organized while it is being collected. This effectively means the data undergoes a preliminary analysis in realtime. The check sheet is best suited when several data points can be observed to collect data manually.
A clear understanding is required of what data points are to be observed and collected. These criteria are then specified in an organized table, creating the Check Sheet. Occurrence of each desired data point is then marked on the check sheet. The quickest analysis result possible is the count (frequency) of occurrence for each data point.
Consider an example where in an office survey, participants are asked to choose between 4 predefined options for which brand of coffee to use. The 4 predefined brands form the "predetermined data points" that need to be observed. As each participants answer is manually recorded on the check cheet, a realtime analysis of their answers starts to appear.
It is important to understand that a check sheet, is not the same as a check list, which is an inspection tool. The check sheet is most efficient when data being collected needs to be analysed based on frequency of occurrence. This of course indcicates that data collected in a check sheet can very effectively be represented using histograms.
For obvious reasons, a Check Sheet is also referred to as a "Data Collection Sheet" or a "Tally Chart".
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