Pool z statistics across imputations

Combines z statistics from multiple imputed datasets and calculates a two-sided p-value for the pooled statistic.

Usage

pool_z_stat(z_stat_vals)

Arguments

z_stat_vals

(numeric) Vector of z statistics, with one value for each imputed dataset.

Value

A named list with the pooled z statistic (z) and its two-sided p-value (p).

Details

The within-imputation variance of a z statistic is approximately 1. The between-imputation variance is pooled using the same (1 + 1 / m) multiplier as pool_rubin_scalar(). The returned p-value is calculated from the standard normal distribution.

See also

pool_rubin_scalar()

Examples

pool_z_stat(c(1.1, 1.3, 1.2))
#> $z
#> [1] 1.192079
#> 
#> $p
#> [1] 0.2332302
#>