If All the Points of a Scatter Diagram Lie on the Least

question 53

Multiple Choice

If all the points of a scatter diagram lie on the least squares regression line, then the coefficient of determination for these variables based on this data is

• A)0
• B)1
• C)either 1 or -1, depending upon whether the relationship is positive or negative
• D)could be any value between -1 and 1

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Definitions:

ABAB Design

A research method involving sequential phases: a baseline phase (A), an intervention phase (B), a return to baseline phase (A), and a final intervention phase (B) to assess changes.

Analogue

A thing or concept that is similar or comparable to another in significant respects, often used in scientific, technical, or mathematical contexts.

Case Study

An in-depth analysis or examination of a single individual, group, or event to explore or illustrate broader principles.

Case Study

An in-depth analysis of an individual, group, or event to explore causal relationships within real-life contexts.