A Very Commonly Used Design in Adult Development and Aging

question 45

Multiple Choice

A very commonly used design in adult development and aging research is the extreme age design ("young" v."old") .Which of the following is a limitation of this type of study?

• A) The samples are not representative and may not generalize.
• B) The measures may not mean the same thing across age groups and may not be valid.
• C) Age is not treated as a continuous variable.
• D) All of these.

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Definitions:

Type I Error

Statistically, the probability of rejecting a good lot.

Good Lot

A term used in quality control to describe a batch of products that meet specified quality standards.

AQL

Acceptable Quality Level, a statistical measurement used in quality control that defines the maximum number of defective items allowed in a sample lot.

Type II Error

Statistically, the probability of accepting a bad lot.