A Researcher Computes the Wilcoxon Signed-Ranks T Test

question 57

Multiple Choice

A researcher computes the Wilcoxon signed-ranks T test.She finds that the sum of positive ranks is 56 and the sum of negative ranks is 22.What is the value of the test statistic,T?

• A) 22
• B) 34
• C) 56
• D) 78

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Definitions:

Behavior Genetics

The study of how genetic and environmental factors influence behaviors, emphasizing the interplay between genetics, environment, and individual differences.

Polygenic Processes

Involving or determined by several different genes, affecting the inheritance and variation of certain traits or disorders.

Heritability

A measure of how much of the variation in a trait within a population is due to genetic differences among individuals in that population.

Twin Studies

Studies of the heritability of a disorder by comparing concordance rates between monozygotic and dizygotic twins.