Distinguish Between the Different Types of Reliability and Validity,and What

question 8

Essay

Distinguish between the different types of reliability and validity,and what are the main differences between them.

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Definitions:

Randomized Block Experiment

An experimental design that groups subjects into blocks based on certain attributes before randomly assigning treatments within those blocks.

Wilcoxon Rank Sum Test

The Wilcoxon Rank Sum Test is a nonparametric statistical test used to compare two independent samples, assessing whether their populations have the same distribution.

Chi-Squared Distribution

A statistical distribution used in hypothesis testing that is the distribution of a sum of the squares of k independent standard normal random variables.

9-point Scale

A scale often used in surveys and research to rate or assess opinions, attitudes, or behaviors, where 1 typically indicates the lowest extent and 9 the highest.