As for the weaknesses, namely:
1. Observation as a tool for assessing learning outcomes cannot always be done properly and correctly by teachers.
2. Â The personality of the observer also often colors or sneaks into the assessment which is done by observation.
3. Â The data obtained from observation activities can generally only reveal the outer personality.
b. Interview
An interview is a method of gathering information which is carried out by conducting oral debriefing unilaterally, face to face, with a predetermined direction and purpose.
There are two types of interviews, namely structured interviews and unstructured interviews. In structured interviews, possible answers have been prepared so that students can only categorize them according to the alternatives that have been made. The advantage is that it is easy to process and analyze to make conclusions. Whereas in unstructured interviews, answers do not need to be prepared so that students are free to express their opinions. The advantage of analyzing it is because the answers can vary.
c. Questionnaire or Questionnaire
Interviews and questionnaires have a very close relationship. This linkage can be shown as follows. To be able to conduct interviews properly, a teacher needs a tool, namely a questionnaire, at least with a fixed ended question model. In educational evaluation, a questionnaire is designed to obtain information from students.
d. Scale
The scale is a tool used to measure values, attitudes, interests, and concerns that are arranged in the form of statements to be assessed by respondents and the results are in the form of a range of values according to the specified criteria.