Audrey Examines Students' Learning of Science Principles from Interactive Games

question 19

Multiple Choice

Audrey examines students' learning of science principles from interactive games. She randomly assigns the fifth grade students in her study to a control condition with no play time, a timed play condition, or an unlimited time play condition. She also groups her students into either high or low ability groups. She measures her students with a knowledge pretest, a post-test, and a delayed post-test. Which of the following is an independent variable in Audrey's study?

• A) Ability
• B) Fifth grade
• C) Post-test exam
• D) Science principles

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Definitions:

Organism

An individual living entity that can react to stimuli, reproduce, grow, and maintain homeostasis.

Endoskeleton

Bony and/or cartilaginous structures within the body that provide support. Compare with exoskeleton.

Vestigial Structure

A feature in an organism that has lost all or most of its original function through the process of evolution.

Pelvis

The lower part of the torso in human anatomy, forming a basin-shaped complex of bones that connects the spine to the lower limbs and houses reproductive organs.