If an IQ Test Is Constructed to Have a Mean

question 22

Multiple Choice

If an IQ test is constructed to have a mean of 100 and a standard deviation of 16,approximately what percentage of scores falls between 84 and 116?

• A) 34 percent
• B) 95 percent
• C) 68 percent
• D) 50 percent

---

Definitions:

Ordinal

Pertains to data classification where order matters but not the difference between values, such as rankings or ratings.

One-sample T-test

A statistical test used to determine if the mean of a single sample significantly differs from a known or hypothesized population mean.

Kruskal-Wallis Test

The Kruskal-Wallis Test is a nonparametric method for testing whether samples originate from the same distribution, used when the assumptions of the ANOVA are not met.

Parametric Counterpart

A statistical test or model that is based on assumptions about the parameters (e.g., mean, variance) of the population distribution from which the sample is drawn.