Variables Definitions

1. Standard Error (SE) in the Group: The standard error is a measure of the precision of the sample mean. It quantifies the variability of sample means around the true population mean.
2. Sample Size of the Group: The number of observations or data points in the sample. The sample size is a critical factor in determining the precision of the sample mean.
3. Standard Deviation in the Group: The calculated standard deviation is based on the provided standard error and sample size.

Conversion Formula

The conversion from standard error to standard deviation is done using the formula:

SD Standard Deviation; SE Standard Error; n Sample Size

**Formula Reference - Cochrane Handbook**