A Reliability Coefficient Estimate — tidy.dmar

Returns a one-row data.frame in the column convention used by the broom ecosystem (term, estimate, se, ci_lower, ci_upper). The term is the coefficient name ("alpha", "omega", etc.).

Usage

# S3 method for class 'dmar_reliability'
tidy(x, ...)

Arguments

x: A dmar_reliability object returned by any of reliability_alpha, reliability_kr20, reliability_omega, reliability_omega_categorical, or reliability.
...: Unused.

Value

A one-row data.frame.

Author

Ken Kelley kkelley@nd.edu

Examples

# Coefficient alpha for the three verbal tests of the Holzinger and
# Swineford battery, from their covariance matrix.
S <- cov(holzinger_swineford[, c("t6_paragraph_comprehension",
                                 "t7_sentence", "t9_word_meaning")])
res <- reliability_alpha(S = S, N = 301, ci_method = "feldt")
generics::tidy(res)
#>    term  estimate se  ci_lower ci_upper
#> 1 alpha 0.8305929 NA 0.7945197 0.861239
generics::glance(res)
#>   coefficient  estimate se  ci_lower ci_upper conf_level nobs n_items ci_method
#> 1       alpha 0.8305929 NA 0.7945197 0.861239       0.95  301       3     feldt