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Estimates magnitude-based inferences upon planned sample size and r value. Based upon WG Hopkins Microsoft Excel spreadsheet.
ss_corr(n, r)
planned sample size
planned correlation coefficient
Refer to vignette for further information.
Hopkins WG. (2006). Estimating sample size for magnitude-based inferences. Sportscience 10, 63-70. sportsci.org/2006/wghss.htm
# NOT RUN { ss_corr(n = 20, r = 0.2) # }
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