If the tauj is not within the range rello - relhi from the dynamic EAP, the procedure ignores the score of item j.
calculate_posterior(scores, tau, qp, scale, mu, sd, relhi, rello)A vector with PASS/FAIL observations.
Scores are coded numerically as pass = 1 and fail = 0.
A vector containing the item difficulties for the item
scores in scores estimated from the Rasch model in the
preferred metric/scale.
Numeric vector of equally spaced quadrature points.
Scale expansion
Numeric scalar. The mean of the prior.
Numeric scalar. Standard deviation of the prior.
Positive numeric scalar. Upper end of the relevance interval
Negative numeric scalar. Lower end of the relevance interval
A list with three elements:
| Name | Label |
eap | Mean of the posterior |
gp | Vector of quadrature points |
posterior | Vector with posterior distribution. |
Since dscore V40.1 the function does not return the "start" element.