Research Methodology

Page 2

Recently published articles about Research Methods and Statistics

JCP
Using Percentiles to Understand Standardized Mean Difference as a Measure of Effect Size
Clinical and Practical Psychopharmacology

August 7, 2023

Chittaranjan Andrade, MD, explains the use of SMDs as a measure of effect size. A recent meta-analysis of the effect of ChEIs on hallucinations and delusions in Alzheimer and...
A Handy Visual Guide to Medical Research Terms
news

July 3, 2023

A helpful statistical definition refresher inspired by the work of Chittaranjan Andrade, MD, to help you understand scientific findings.
JCP
Understanding Misunderstandings About the Relative Risk and Odds Ratio
Clinical and Practical Psychopharmacology

June 5, 2023

Using simple concepts and arithmetic, Chittaranjan Andrade, MD, teaches readers how to derive and interpret relative risk and odds ratios.
JCP
Understanding 95% Confidence Intervals Around Relative Risk, Odds Ratio, and Hazard Ratio
Clinical and Practical Psychopharmacology

May 31, 2023

Dr Chittaranjan Andrade explains, in simple terms, an important concept: how to interpret 95% CIs for statistics expressed along an exponential scale.
JCP
NNT, NNH, and LHH for Lumateperone
Original Research

March 6, 2023

The benefit-risk assessment of lumateperone was favorable as measured by number-needed-to-treat and number-needed-to-harm analyses.
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JCP
Positive Predictive Value
Commentary

August 24, 2022

In this Commentary, the author posits that knowledge about positive predictive value—the probability a person identified as ill by a screening test does indeed have the illness—is important for...

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