Which of the Following Is Most Clearly a Statement About

question 38

Multiple Choice

Which of the following is most clearly a statement about a statistical relationship between variables?

• A) About one-third of Americans have a psychological disorder at some time in their lives.
• B) Summer temperatures in Phoenix often exceed 100 degrees Fahrenheit.
• C) "Pain-Away" is more effective at treating headaches than its main competitor.
• D) Many people are willing to visit a psychotherapist for help with their problems-but many are not.

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Definitions:

Confounding Variable

A factor other than the independent variable that might produce an effect in an experimental study, potentially misleading the results.

Experimental Design

The plan for a research study that includes the method for allocating participants to groups and the procedures for measuring the variables of interest.

Stimulus

An external factor or event that provokes a response or reaction, typically in a biological, psychological, or social context.

Memory Recall

The mental process of retrieval of information from the past.