RESEARCH STUDY 9

question 21

Multiple Choice

RESEARCH STUDY 9.1: Dr.Farah is an educational psychologist who is interested in studying the potential causal relationship between doing homework and academic achievement.In January, Dr.Farah has her students report their fall GPA (a measure of academic achievement) and estimate how many hours they spent doing homework during a typical week in the fall semester.In May, Dr.Farah measures the same variables again (the estimated number of hours spent doing homework during a typical week in the spring semester and their spring GPA) .She finds the following correlations. Of the correlations listed, how many are cross-sectional correlations?

• A) One
• B) Two
• C) Three
• D) Four

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Definitions:

Compression

A force that acts to compress or squeeze materials together.

Deposition

The geological process in which sediments, soil, and rocks are added to a landform or land mass, typically influenced by water, wind, or ice.

Crustal Material

Any geological materials that make up the crust of the Earth, encompassing rocks, minerals, and sediments.

Lithosphere

The lithosphere is the rigid, outer layer of the Earth, comprising the crust and the upper part of the mantle.