One Method for Detecting Tumors in Body Tissue Involves the Use

question 57

Multiple Choice

One method for detecting tumors in body tissue involves the use of radioactive materials to create three-dimensional images showing metabolic activity of a specific tissue. This technique is referred to as

• A) magnetic resonance imaging.
• B) positron-emission tomography.
• C) mammography.
• D) electrophoresis.
• E) photodynamic therapy.

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Definitions:

Percentiles

A measure that indicates the value below which a given percentage of observations in a group of observations falls.

Stanines

Derived from the term “standard nines,” this is a standardized score frequently used in schools. Often used with achievement tests, stanines have a mean of 5 and a standard deviation of 2, and range from 1 to 9.

T-scores

Standardized scores with a mean of 50 and a standard deviation of 10, used to compare an individual's score against a normative sample.

Grade Equivalents

A metric used in education to compare a student's test score with the average scores of students in other grades.