Calculate Standard Deviation (SD) from P-value in 2 Groups

Result

Standard Deviation (SD):

Description of the formula

Variables Definitions

  1. P-value: A statistical measure that helps researchers assess the evidence against a null hypothesis. In this context, it represents the p-value associated with the comparison of means between two groups.
  2. Number of Participants in Group 1: The total number of individuals or data points in the first group.
  3. Number of Participants in Group 2: The total number of individuals or data points in the second group.
  4. Mean Difference (MD): The difference in means between the two groups. It represents the numerical gap between the average values of the two groups.
  5. Standard Deviation (SD) Result: The calculated standard deviation based on the provided p-value and other information.

Conversion Formula

The conversion process involves the following steps:

  1. Calculate the t-value from the P-value:
  2. Calculate the Standard Error (SE):
  3. Calculate the Standard Deviation (SD):
  4. **Formula Reference - Cochrane Handbook**