This is a training and education tool for quality control in healthcare laboratories. It is designed to double-check the interpretation of control charts. Specifically, levey-jennings control charts with data pointed that will simulate a given mean, standard deviation, and certain out-of-control situations.
Users can enter their mean, standard deviation, and control limits, as well as the value of several data points. Then the user will be presented with graphic display of those control points, along with the interpretation of those control values.
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NOTE: These Javascript Calculators only work on browsers that support Javascript! Fill these blanks in if you want to print out a hard copy of your data after you enter it Analyst Test Control Material Units Comments Control Chart Parameters Enter the control mean: Enter the control standard deviation: Enter up to 3 control limits you wish to evaluate (enter the multiplier number only, i.e. 2, 3, 3.5, etc.): Number of values along the X axis: The number of data points you wish to plot 20 30 40 60 Data Points Enter the data points to be plotted and used for the rule(s) below. Rule Checking Control Rules: 1:3s with N=2 1:2s with N=2 1:3s/2:2s/R:4s with N=2 1:3s with N=3 1:2s with N=3 1:3s/2:2s/R:4s/3:1s with N=3 1:3s with N=4 1:2s with N=4 1:3s/2:2s/R:4s/4:1s with N=4 1:3s/2:2s/R:4s/4:1s with N=2 1:3s/2:2s/R:4s/4:1s/10x with N=2 1:3s/2:2s/R:4s/3:1s/6x with N=3 1:3s/2:2s/R:4s/4:1s/8x with N=4 N is the number of points added per run. Start checking: