At What Age Does an Infant Typically First Exhibit Separation

question 130

Multiple Choice

At what age does an infant typically first exhibit separation anxiety?

• A) one to two weeks
• B) one to two months
• C) six to eight months
• D) around one year

---

Definitions:

Standardized Residual

The value obtained by dividing a residual by its standard deviation.

Studentized Deleted Residuals

Standardized residuals that are based on a revised standard error of the estimate obtained by deleting observation i from the data set and then performing the regression analysis and computations.

Residual Transformation

Residual transformation involves altering the residuals from a data model, possibly to meet the assumptions of linear regression such as normality or homoscedasticity.

Estimated Regression Equation

A formula that models the relationship between one or more independent variables and a dependent variable.