rpsychi (version 0.3)

zero.r.test.second: A significance testing of a product moment correlation using published work

Description

zero.r.test.second conducts a significance testing of a product moment correlation using published work.

Usage

zero.r.test.second(r, n, sig.level = 0.05, digits = 3)

Arguments

r

a numeric contains the product moment correlation

n

a numeric contains the sample size

sig.level

a numeric contains the significance level (default 0.05)

digits

the specified number of decimal places (default 3)

Value

• The returned object of zero.r.test contains the following components:
• correlation
  returns a product moment correlation, its' approximate confidence interval for population correlation, and standard error
• power
  returns statistical power for detecting small ($r = 0.10$), medium ($r = 0.30$), and large ($r = 0.50$) population effect sizes

encoding

UTF-8

Details

This function conducts a significance testing of a product moment correlation using published work. Statistical power is calculated using the following specifications: (a) small ($r = 0.10$), medium ($r = 0.30$), and large ($r = 0.50$) population effect sizes, according to the interpretive guideline for effect sizes by Cohen (1992) (b) sample size specified by n (c) significance level specified by sig.level

References

Cohen J (1992) A power primer. Psychological Bulletin, 112, 155-159.

See Also

zero.r.test, samplesize.r

Examples

zero.r.test.second(r = 0.571, n = 9)