Several Studies Have Found That Biofeedback Techniques Can Reduce Headache

question 111

Multiple Choice

Several studies have found that biofeedback techniques can reduce headache in up to ____% of the patients undergoing this therapy.

• A)25
• B)36
• C)63
• D)92

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Definitions:

Predicts Direction

Indicates whether a relationship between two variables is positive or negative, without specifying strength or statistical significance.

One-tailed

Refers to a type of statistical test in which the alternative hypothesis specifies a direction of the expected difference or relationship.

Indirect Correlation

A negative correlation where the values of variables move in opposite directions.

Nondirectional Correlation

A type of correlation that measures the strength and direction of a relationship between two variables, without assuming which variable influences the other.