For his research methods class, Felipe plans to watch how students treat other children in their classrooms who have attention-deficit/hyperactivity disorder (ADHD). He will evaluate how positively or negatively the children are treated by their classmates. This is an example of what type of measurement?
A) Self-report measurement
B) Observational measurement
C) Physiological measurement
D) Archival measurement

(B) Observational measurement

Explanation:

  The observational measurement is one of the type of measurement that helps in observing the various types of behavior and also the quantitative or the standard judgement.

 The observational measurement is basically plays an integral role in the various types of observational methodology that specifically helps in accomplishing the growth of an organization by using the analyzing method properly.

According to the given question, the observational measurement is of the example that helps in evaluating the given situation. Therefore, Option (B) is correct answer.