Riley Believes That Fingernail Length Is a Strong Predictor of Intelligence

question 152

Multiple Choice

Riley believes that fingernail length is a strong predictor of intelligence, and that cutting one's nails will lead to decreased intellectual skill. He enlists twenty participants to let their fingernails grow for six months and he gives them IQ tests every eight weeks. His data most likely have ________ statistical reliability and ________ validity.

• A)poor; poor
• B)good; good
• C)poor; good
• D)good; poor

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Definitions:

Cultural Differences

Variations in the practices, values, and goals shared by groups of people, which can influence perceptions, behaviors, and interactions among people from different backgrounds.

Political Agendas

Specific sets of planned actions or goals pursued by individuals, groups, or organizations in the political arena to influence policy, law, or governance according to their interests or beliefs.

Data Collection

The process of gathering and measuring information on targeted variables to answer relevant questions and evaluate outcomes.

American Psychological Association

A large scientific and professional organization of psychologists in the United States, dedicated to advancing psychology as a science, profession, and means of promoting health and human welfare.