______ is a common test used for relationships between categorical variables measured on nominal and ordinal scales.
A. Pearson r
B. Cohen's d
C. Chi-square test
D. Expected frequency
Answer: C
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Which of the following represents the best operational definition of hunger?
a. that empty, gnawing feeling that you get in your stomach b. not having eaten for 18 hours c. the number of stomach growls reported in a ten-minute time interval d. All of the options are equally good.
Fluid intelligence either remains stable or improves throughout adulthood
Indicate whether the statement is true or false
According to learning theorists, children's ideas about gender roles develop from __________
a) hormonal influences on brain development. b) children being reinforced or punished for various sex role behaviors. c) maturation of brain development which results in hormonal influences on brain development and the ability to understand gender stability. d) a series of stages in acquiring the concept of gender.
It has been discovered that _____ reduces the risk of transmission of HIV
a) good hand washing b) good genital hygiene c) male circumcision d) washing after sex