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Fig. 2 | BMC Medical Education

Fig. 2

From: Assessment of operator performance during oocyte retrievals: residents’ learning curve and continuous monitoring of senior physicians

Fig. 2

Learning curve cumulative summation test (LC CUSUM) graph for residents performing oocyte retrievals. The score is plotted on the y axis and time on the x-axis (number of days). The red line represents the threshold h.lc, above which the performance level is considered adequate. The prolonged periods without retrievals correspond to the periods where the department was closed (last week of December and 3 weeks in August), or when the residents were on vacation

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