Researchers in a 2009 Study Assessed Whether Participants from the Midwestern

question 140

Multiple Choice

Researchers in a 2009 study assessed whether participants from the Midwestern United States were able to accurately assess romantic interest in German-speaking couples. The video clips depicted German-speaking couples on actual dates. Participants viewed 10-second or 30-second video clips of the beginning, middle, or end of the dates. The results revealed that:

• A) participants had poorer accuracy when judging clips from the middle or end of the date.
• B) participants were better than average at judging romantic interest, and both men and women showed similar levels of efficiency in judgment.
• C) participants were not better than average at judging romantic interest.
• D) it was easier for participants to judge females in the video more accurately than males.

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Definitions:

Type I Error

Occurs when a true null hypothesis is incorrectly rejected.

Cheated

Engaged in dishonest behavior to gain an unfair advantage, often in a context such as an exam or competition.

Type II Error

Occurs when a false null hypothesis is not rejected.

Statistical Power

The probability that a statistical test will correctly reject a false null hypothesis, a measure of a test's ability to detect an effect if there is one.