A Measure of Variability Is a Numerical Index

question 22

Multiple Choice

A measure of variability is a numerical index:

• A) of the central tendency of the data values in a set of data
• B) that indicates how spread out the data values are in a set of data
• C) that indicates the level of skewness of the data
• D) that indicates if two variables vary together

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Definitions:

Father of Psychology

Wilhelm Wundt, who is often credited as the founder of experimental psychology and the first person to refer to himself as a psychologist.

Wilhelm Wundt

Considered the father of modern psychology, he established the first psychological laboratory in Leipzig, Germany, in 1879, emphasizing the scientific study of observable mental processes.

Naturalistic Observation

A descriptive research method in which researchers observe and record behavior in its natural setting, without attempting to influence or control it.

Describing Behavior

The process of observing and recounting actions or responses of individuals or groups in a detailed and systematic manner.