SEp_from_SDp {metaHelper}

Standard Error (Pooled)

Description

IMPORTANT: When there is only one group, the following method has to be used: SE_from_SD() Calculates the pooled standard error for two groups (e.g., intervention effect).

Usage

SEp_from_SDp(SDp, n1, n2)

Arguments

SDp

pooled standard deviation

n1

sample size group 1

n2

sample size group 2

Value

Pooled standard error for two groups (e.g. standard error of intervention effect)

References

Cochrane Handbook

See Also

SE_from_SD() for a single group

Examples

# Pooled standard deviation = 2, sample size group a = 50, sample size group b = 75
SEp_from_SDp(2, 50, 75)