Ameasurement is considered ­ if it actually measures what it is intended to measure, according to the topic of the study.
reliable
sociological
valid
quantitative

The correct answer is C. Valid

Explanation:

In the scientific method, the term measurement refers to a scale, instrument or unit that is applied to an event or object to study it and prove a hypothesis. Additionally, measurements can be of different types as these are consider as quantitative if it deals with numerical information, as qualitative if they deal with patterns that are not expressed by numbers; as reliable if the results found with a measurement is replicable and verifiable and as valid in the case the measure directly addresses or measures the phenomenon, event or object that is being studied. Therefore, a measure that actually measures what it is intended to measure is considered as a valid measurement.