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A Monte Carlo simulation study of sample size requirements for the Graded Response Model

Fig 9

Changes in the correlation coefficient () between and by sample size (n).

The line plot shows how the Fisher-transformed correlation coefficient () between true and estimated values of varies with increasing sample size (n). The number of items (J) is indicated as appropriate.

Fig 9

doi: https://doi.org/10.1371/journal.pone.0347684.g009