Mark, Who Is Either Pacing Rapidly or Sitting for Hours

question 139

Multiple Choice

Mark, who is either pacing rapidly or sitting for hours in the same position, is displaying _____ symptoms of schizophrenia. Nate, who is extremely difficult to understand because his sentences are incoherent, is displaying _____ symptoms of schizophrenia.

• A) residual; undifferentiated
• B) catatonic; disorganized
• C) disorganized; residual
• D) catatonic; undifferentiated

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Definitions:

Dependent Variable

A variable in statistical modeling or experimental design that is expected to change as a result of manipulations to the independent variable.

Slope

In mathematics, the slope describes the steepness, incline, or grade of a line, defined as the ratio of the vertical change to the horizontal change between two points on the line.

Intercept

The point on a graph where a line or curve crosses an axis, often used to determine where a function or equation equals zero.

Least-Squares Regression

A statistical method to determine a line of best fit by minimizing the sum of squares of the distances of data points from the proposed line.