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Estimate descriptive statistics of reliabilities from descriptive statistics of square-root reliabilities via Taylor series approximation
estimate_rel_dist(mean_q, var_q)
Mean square-root reliability value.
Variance of square-root reliability values.
The estimated mean and variance of a distribution of reliability values.
$$var_{\rho_{XX}}=4q_{X}^{2}var_{\rho_{XX}}$$
# NOT RUN { estimate_rel_dist(mean_q = .9, var_q = .05) # }
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