The situation in which you figure a correlation but only a limited range of the possible values on one of the variables is included in the group studied is called
A)restriction in range.
B)attenuation.
C)proportionate reduction in error.
D)unreliable measurement.

Question

Quizplus · Accepted Answer

Restriction in range occurs when only a limited range of values is included in the group studied, which can lead to a decreased correlation coefficient due to the lack of variability in the data. Attenuation refers to an underestimation of the true correlation coefficient due to measurement error or other factors reducing the strength of the relationship. Proportionate reduction in error and unreliable measurement refer to errors in measuring variables, which can affect the accuracy of the correlation coefficient but are not directly related to the range of values studied.

The Situation in Which You Figure a Correlation but Only