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

---

Definitions:

Invasive Species

Non-native organisms that spread rapidly in new environments, often causing harm to native species, human health, and economies.

Generalists

Organisms that have a broad niche and can thrive in a wide variety of environmental conditions and can make use of a variety of different resources.

Species Diversity

The variety and abundance of different species within a given area, contributing to the complexity and resilience of ecosystems.

Latitude

The geographic coordinate that specifies the north-south position of a point on the Earth's surface, measured in degrees from the equator.