Joey's Mother Was Amazed by Her Two-Year-Old Son

question 261

Multiple Choice

Joey's mother was amazed by her two-year-old son. He was a very friendly, agreeable child who always seemed to be relaxed and in a good mood. Thomas and Chess would describe Joey as a(n) __________ child.

• A)easy
• B)extroverted
• C)positive
• D)power assertive

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Definitions:

P-value

The likelihood of getting test outcomes that are as significant as or more so than the ones actually seen, presuming the null hypothesis is true.

Level of Significance

The probability of rejecting the null hypothesis in a statistical test when the hypothesis is true; often represented by alpha (α).

Grand Mean

The mean or average of several group means, which gives an overall measure of the central tendency across all the groups considered together.

Treatments

Interventions or conditions that researchers apply to experimental units or subjects to observe their effect on outcomes.