A Group of Volunteers for a Clinical Trial Consists of 88

question 58

Multiple Choice

A group of volunteers for a clinical trial consists of 88 women and 90 men.20 of the women and 19 of the men have high blood pressure.Are high blood pressure and gender independent? Explain.

• A)Yes; a patient with high blood pressure cannot be both male and female.
• B)No; P(High blood pressure)= 0.219;
• P( \(\text { High blood pressure| }\) Female)= 0.227.
• These are not equal.
• C)No; P(High blood pressure and Male)= 0.107;
• P(High blood pressure and Female)= 0.112.
• These are not equal.
• D)Yes; P(High blood pressure and Male)= P(High blood pressure)? P(Male).
• E)Yes; P( \(\text { High blood pressure| }\) Female)= 0.227;
• P( \(\text { High blood pressure| }\) Male)= 0.227.
• These are equal.

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Definitions:

Reliability

The degree to which test scores are free from errors of measurement, also, the capacity of an instrument to provide consistent results. See “test-re-test,” “alternative forms,” and “internal consistency”.

Validity

The degree to which all of the accumulated evidence supports the intended interpretation of test scores for the intended purpose. Validity is a unitary concept that attempts to answer the question: How well does a test measure what it’s supposed to measure?

Guilford's Cognitive

Refers to a model developed by psychologist Joy Paul Guilford that categorizes human intelligence into operations, contents, and products.

Functions

In mathematics, functions are defined as relationships between a set of inputs and a set of permissible outputs, where each input is related to exactly one output.