Standard Error from Confidence Interval for Differences of Means

Calculates the standard error from the confidence interval limits for differences of means (and can also be used for the confidence intervals of standardized mean differences, SMD).
This method is valid only when the confidence interval is symmetrical around the mean and is applicable for t-distributions or normal distributions (as specified by the t_dist argument).
For sample sizes less than 60, it is generally recommended to use the t-distribution.

CI_low*

Lover OR confidence interval limit

CI_up*

Upper OR confidence interval limit

n1*

Sample size group 1 (not required if t_dist = FALSE)

n2*

Sample size group 2 (not required if t_dist = FALSE)

sig_level*

The significance level

two_tailed*

Whether the two-tailed or one-tailed statistics should be calculated

t_dist*

Whether the t-distribution should be calculated - requires samples sizes

Within Study Result

Result

References

Cochrane Handbook

Standard Deviation

Standard Error

SMD

Standard Deviation

Standard Error

Standardized Mean Difference

Absolute Risk Difference

Confidence Interval

Standard Error from Confidence Interval for Differences of Means

References