Practice Effects and Participant Drop-Out Are Two Problems Especially Associated

question 15

Multiple Choice

Practice effects and participant drop-out are two problems especially associated with which principal method for studying the effects of aging on memory?

• A)Archival
• B)Cross-sectional
• C)Meta-analysis
• D)Longitudinal
• E)Survey

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Definitions:

Price

The amount of money expected, required, or given in payment for something; it reflects the value at which a transaction can occur.

Dioxins

Highly toxic chemical compounds that are environmental pollutants and known for their ability to persist in the environment and accumulate in the food chain.

Parts Per Million

A unit of measurement used to denote the concentration of a substance in water or air, equal to 1 part of the substance in 1,000,000 parts of the solvent.

Scatterplot

A type of graph used in statistics to display values for typically two variables for a set of data, showing how much one variable is affected by another.