What Is Currently the Most Widely Accepted Explanation for Declines

question 37

Multiple Choice

What is currently the most widely accepted explanation for declines in memory among older adults?

• A) their lack of motivation to use memory strategies
• B) loss of speed in central nervous system processes related to information-processing and memory function
• C) low-level dementia that interferes with memory but not with other aspects of functioning
• D) drug interactions that interfere with the physiological basis of memory formation and retrieval

Understand the process and purpose of conducting a one-way ANOVA.

Identify how to correctly state null and alternative hypotheses in the context of one-way ANOVA.

Comprehend the role and calculation of variance in statistical analysis.

Recognize the conceptual underpinnings of between-group and within-group variability.

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Definitions:

F Statistic

A ratio used in an analysis of variance test that determines the significance of groups’ differences in an experimental design.

ANOVA

An acronym for Analysis of Variance, a statistical method used to compare the means of three or more samples.

Main Effect

The direct effect of an independent variable on a dependent variable in experimental and statistical analysis.

Step-aerobics

Step-aerobics is a form of aerobic exercise that involves stepping on and off a raised platform, often to the rhythm of music, to improve fitness and cardiovascular health.