Decimal Places Standard Deviation

Format Check

Introduction

In clinical studies, data is collected and analyzed using various statistical tests. The results of these tests, including the Standard Deviation (SD) values, are often presented in the final Tables. These values are displayed as numeric with a decimal separator, and the number of decimal places adheres to specific criteria. The criteria may depend on factors such as measurement precision or statistical requirements. Researchers and statisticians must ensure that the presentation of the SD values follows the appropriate criteria for their study.

Purpose

Validates that the number of decimal places is equal to one digit more than the number of decimal places in the mean.

Applicability 

Inclusion conditions 

By Keywords - one from each bullet point: 

• Standard deviation, Std Dev, Std. Dev, SD
• Mean 

Exclusion 

• Empty table
• Tables that do not contain the inclusion conditions
• The following types of Mean: 
  • Geometric mean 
  • Harmonic mean
  • Weighted mean
• Specific cells are considered not applicable:
  • Number 0
  • N/A, NA, N/E, NE, NR
  • Dashes
  • Blank cells
  • Dot
  • Number with power

Discrepancies

The number of decimal places is not equal to one digit more than the number of decimal places in the mean. 

Discrepancy Example

The number of decimal places of the mean is 3.

The number of decimal places of the standard deviation is 1.