At the Age of Four Months, Zach Was Excitable and Fearful

question 143

Multiple Choice

At the age of four months, Zach was excitable and fearful. His dad taped a colorful picture beside the changing table to entertain Zach during diaper changes. Zach overreacted to the picture and became agitated and nervous. Zach is most likely to be classified as a(n) ___________ child.

• A) introverted
• B) extroverted
• C) reactive
• D) nonreactive

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Definitions:

Statistical Analysis

The process of collecting, exploring, and presenting large amounts of data to discover underlying patterns and trends and make decisions.

P-Value

The probability of obtaining test results at least as extreme as the observed results, assuming the null hypothesis is true.

Null Hypothesis

In statistics, a hypothesis that suggests no significant difference or effect, serving as the default assumption to be tested against experimental data.

P-Value

A statistical measure that helps scientists determine the significance of their research results, indicating the probability of observing the obtained results assuming that the null hypothesis is true.