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Fig. 2 | BMC Medical Research Methodology

Fig. 2

From: Estimating the number of usability problems affecting medical devices: modelling the discovery matrix

Fig. 2

Consistency in the prediction of m: the RMSE for the prediction of m (as a percentage of the true m) as a function of the sample size (n). The results are presented for various probabilities of problem detection ((μ, σ), columns) and various numbers of usability problems (m, rows). The LNBzt results are not represented for m < 100 and m u = logit(0.1), due to a high RMSE

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BMC Medical Research Methodology

ISSN: 1471-2288

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