Users of Psychological Tests Are Frequently Tempted to Treat Ordinal

question 116

Multiple Choice

Users of psychological tests are frequently tempted to treat ordinal data as if it were interval data.This is the case because of the

• A) difficulties that would be encountered if the data were treated as ratio data.
• B) frequent need to do more than simply rank order test scores.
• C) data manipulation capabilities given the equal intervals between points measured.
• D) added flexibility of interval level data for statistical manipulation.

Understand the reactivity of different alcohols with various reagents.

Classify organic reactions as oxidation, reduction, or neither.

Identify appropriate oxidizing agents for given transformations.

Understand the mechanism of oxidation reactions in organic chemistry.

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Definitions:

Paired-difference Experiment

An experimental design where the observations are made in pairs, and the analysis is based on the differences within each pair.

Rejection Region

The range of values for which the null hypothesis is not considered likely and is rejected in a statistical test.

Nonparametric Tests

Statistical tests that do not assume the data come from a particular distribution, often used when dealing with ordinal data or when the normality assumption is violated.

Parametric Tests

Statistical tests based on assumptions about the population distribution from which the sample is drawn, typically involving parameters like mean and standard deviation.