Although Their Formulas Are Similar, One Difference Between the Z-Score

question 5

Multiple Choice

Although their formulas are similar, one difference between the z-score (z) and the t-statistic (t) is that ______.

• A) only z-scores (not t-statistics) are part of a theoretical distribution
• B) z-scores evaluate sample means whereas t-statistics evaluate individual scores
• C) the numerator of the t-statistic formula (not the z-score) is the difference between a score and a mean
• D) the denominator of the t-statistic formula estimates the variability of sample means rather than individual scores

---

Definitions:

Male Sexual Partners

A term referring to individuals of the male gender with whom a person has had sexual interactions or relationships.

Human Sexual Arousal

The process by which an individual becomes sexually excited, which can involve physiological and psychological responses including an increase in heart rate, blood flow, and genital sensitivity.

Masters And Johnson

Two pioneering researchers in sexual behavior and response, known for their work on human sexual response cycles and sexual disorders.

Sildenafil (Viagra)

A medication used primarily to treat erectile dysfunction and, under the name Revatio, pulmonary arterial hypertension by increasing blood flow to the penis.