mbir (version 1.3.5)

ss_smd: Sample Size Estimation: Standardized Mean Difference

Description

Estimates magnitude-based inferences upon planned sample size and d value. Based upon WG Hopkins Microsoft Excel spreadsheet.

Usage

ss_smd(exp, con, es)

Arguments

exp

planned sample size of experimental group

con

planned sample size of control group

es

planned Cohen's d

Details

Refer to vignette for further information.

References

Hopkins WG. (2006). Estimating sample size for magnitude-based inferences. Sportscience 10, 63-70. sportsci.org/2006/wghss.htm

Examples

# NOT RUN {
ss_smd(exp = 20, con = 15, es = 0.6)
# }