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Estimate descriptive statistics of square-root reliabilities from descriptive statistics of reliabilities via Taylor series approximation
estimate_q_dist(mean_rel, var_rel)
The estimated mean and variance of a distribution of square-root reliability values.
Mean reliability value.
Variance of reliability values.
var_q_X=var__XX4q_X^2var_rel / (4 * mean_q^2)
estimate_q_dist(mean_rel = .8, var_rel = .15)
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