A nurse researcher determines the assignment of a number to an object for measurement by verifying what?
A) The objects vary within a narrow range to meet category requirements.
B) All objects assigned a specific measurement number are similar to all other objects assigned the same number.
C) The objects assigned to one specific number are positively related to the dependent variable of the study.
D) The objects assigned to one specific number are positively related to the independent variable of the study.

Question

Quizplus · Accepted Answer

When assigning a number to an object for measurement, a nurse researcher should ensure that all objects assigned the same number are similar to each other. This is because measurement is based on the assumption that objects within a group are alike in the aspect being measured. This principle is called homogeneity or consistency. If all objects assigned to a specific number are similar to all other objects assigned the same number, then the measurement is considered reliable. Therefore, choice B is the best answer.
Choice A refers to the concept of variability, which is related to the measurement scale used and the range of values that can be assigned to an object. It is not directly related to the process of assigning a number to an object for measurement.
Choices C and D refer to the relationship between the assigned numbers and the variables being studied. While this may be important in determining the validity of the measurement, it is not directly related to the process of assigning a number to an object for measurement.

A Nurse Researcher Determines the Assignment of a Number to an Object