An Intelligence Quotient (IQ)of Which of the Following Is the Threshold

question 3

Multiple Choice

An intelligence quotient (IQ) of which of the following is the threshold for onset of intellectual disability?

• A)80 or less
• B)70 or less
• C)60 or less
• D)50 or less

---

Definitions:

Correlation Coefficient

A numerical indicator that determines the magnitude of the correlation between the relative fluctuations of two variables.

Regression Analysis

An approach in statistics for modeling how a dependent variable is related to one or more independent variables.

Dependent Variable

The variable in an experiment that is expected to change as a result of manipulations to the independent variable.

Residual

The difference between observed and predicted values in a regression analysis.