A Biopsychologist Is Interested in Studying the Effects of Marijuana

question 117

Multiple Choice

A biopsychologist is interested in studying the effects of marijuana on cognitive skills by studying a group of 7 rats.He puts each rat in a maze and measures the time it takes the rat (in minutes) to find the cheese at the end of the maze.He then puts a mask on the rat and has it inhale marijuana smoke for 5 seconds.He then puts the rat back in the maze,and records its time to reach the cheese.Twenty minutes later he puts the rat back in the maze to test for lasting effects of the drug.The tables below summarize the data and part of the data analysis:
What is the eta-squared (h2) for this data?

• A).76
• B).05
• C).01
• D).43

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Definitions:

Inversion

Inversion in genetics refers to a chromosome rearrangement in which a segment of a chromosome is reversed end to end, potentially affecting gene function and expression.

Carpal Bones

The eight small bones that make up the wrist (carpus) that connect the hand to the forearm.

Gliding

The motion or activity involving smooth, continuous movement with little to no friction or resistance.

Pivot

A central point around which something rotates or oscillates.