Related Experiment Video

Updated: Feb 9, 2026

Retroviral Transduction of Helper T Cells as a Genetic Approach to Study Mechanisms Controlling their Differentiation and Function
11:50

Retroviral Transduction of Helper T Cells as a Genetic Approach to Study Mechanisms Controlling their Differentiation and Function

Published on: November 4, 2016

11.6K

A Power Formula for the Mantel-Haenszel Test for Differential Item Functioning

Zhushan Li1

  • 1Boston College, Chestnut Hill, MA, USA.

Applied Psychological Measurement
|June 9, 2018
PubMed

Keywords:
DIFMantel-Haenszel testitem response theorypower

More Related Videos

Differentiation of Functional Osteoclasts from Human Peripheral Blood CD14+ Monocytes11:52

Differentiation of Functional Osteoclasts from Human Peripheral Blood CD14+ Monocytes

Published on: January 27, 2023

4.5K
Computerized Adaptive Testing System of Functional Assessment of Stroke05:21

Computerized Adaptive Testing System of Functional Assessment of Stroke

Published on: January 7, 2019

6.3K

Related Concept Videos

Chemical Formulas02:52

Chemical Formulas

A chemical formula presents information about the proportions of atoms constituting a particular chemical compound or molecule, mainly using symbols of elements and numbers. At times other symbols, such as dashes, parentheses, brackets, commas, plus, and minus signs, are also used. A chemical formula can be one of three types – molecular, empirical, and structural.
61.4K
Ionic Compounds: Formulas and Nomenclature03:34

Ionic Compounds: Formulas and Nomenclature

An element composed of atoms that readily lose electrons (a metal) can react with an element composed of atoms that readily gain electrons (a nonmetal) to produce ions through complete electron transfer. The compound formed by this transfer is stabilized by the electrostatic attractions (ionic bonds) between the oppositely charged ions.
87.8K
Molecular Compounds: Formulas and Nomenclature03:10

Molecular Compounds: Formulas and Nomenclature

Molecular compounds or covalent compounds result when atoms share electrons to form covalent bonds. Since there is no electron transfer, molecular compounds do not contain ions; instead, they consist of discrete, neutral molecules. 
55.9K
Experimental Determination of Chemical Formula02:37

Experimental Determination of Chemical Formula

The elemental makeup of a compound defines its chemical identity, and chemical formulas are the most concise way of representing this elemental makeup. When a compound’s formula is unknown, measuring the mass of its constituent elements is often the first step in determining the formula experimentally.
47.5K
The Mantel-Cox Log-Rank Test01:19

The Mantel-Cox Log-Rank Test

The Mantel-Cox log-rank test is a widely used statistical method for comparing the survival distributions of two groups. It tests whether a statistically significant difference exists in survival times between the groups without assuming a specific distribution for the survival data, making it a non-parametric test. This flexibility makes the log-rank test particularly valuable in medical research and other fields where the timing of an event, such as death or disease recurrence, is of...
1.1K
Formula Mass and Mole Concepts of Compounds02:56

Formula Mass and Mole Concepts of Compounds

Formula Mass of Covalent Compounds
81.8K