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Fig. 2 | BMC Research Notes

Fig. 2

From: Simple descriptive missing data indicators in longitudinal studies with attrition, intermittent missing data and a high number of follow-ups

Fig. 2

Distribution of the three missing data indicators. The scores of the 420 participants of the Norwegian dataset (a) and the 350 participants of the Dutch dataset (b). In each dataset the scores of the Dispersion indicator are for comparison put in bins centered on the same values as the possible values of the other two indicators. The pairwise Spearman correlation coefficients for the Last response (LR), Retention (Ret) and Dispersion (Dis) indicators were LR-Ret 0.82, LR-Dis 0.79, Ret-Dis 0.76 (Norwegian dataset) and LR-Ret 0.68, LR-Dis 0.82, Ret-Dis 0.74 (Dutch dataset). All these correlation coefficients were highly significant (p < .001)

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