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Gain confidence in applying the four run chart rules to identify signals of non-random variation in data analysis. Learn about counting runs and the importance of recognizing shifts, trends, data point quantity, and astronomical points.
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Scottish Improvement Skills Data analysis: Review of run chart rules
System of Profound Knowledge Deming 2000
Data analysis:Review of run chart rules • By the end of this session you will have more confidence in applying the four run chart rules to identify signals of non-random variation.
Counting runs: % of cases with Peak Expiratory Flow recorded
The 4 rules • Rule 1 – a shift • Rule 2 – a trend • Rule 3 – too few or too many data points • Rule 4 – an astronomical point
Are there any signals of non-random variation in this chart?
Are there any signals of non-random variation in this chart?