Attrition Is a Problem for Longitudinal Studies Because

question 23

Multiple Choice

Attrition is a problem for longitudinal studies because

• A) all participants are not at equal risk of being lost from the study over time.
• B) you cannot add new measures to the study as it goes on.
• C) all groups in the study must be as much the same as you can possibly make them.
• D) it creates a cohort effect among the participants.

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Definitions:

Social System

An organized set of interrelated structures that function together to maintain a society or section of a society.

Vector Organisms

Living organisms such as mosquitoes, ticks, and fleas that can transmit infectious pathogens between humans, or from animals to humans.

Climate Change

A long-term change in the Earth's climate, especially a change due to an increase in the average atmospheric temperature.

Increases

The action or process of becoming greater in size, number, value, or amount.