What is the best method of evaluating knowledge change?

A written test is considered the best method of evaluating knowledge change because it allows for a structured assessment of what individuals have learned and retained after instruction. Written tests can effectively measure specific knowledge areas, understanding of concepts, and the ability to apply learned information.

Tests can include a variety of question types, such as multiple choice, true/false, and short answer, which can help gauge the depth and breadth of knowledge acquired. The responses to these tests provide quantitative data that can easily be analyzed to identify patterns in knowledge change across a group. Additionally, written tests can be standardized, ensuring consistency in evaluation criteria, which can enhance reliability and validity of the results.

Surveys, although useful for gathering general feedback or attitudes, may not accurately measure knowledge change since they often rely on self-reported data and opinions rather than objective assessment. Observation can provide insights into behavior and application of knowledge, but it does not directly measure knowledge and understanding. Interviews can allow for a deeper exploration of knowledge but are subjective and can vary significantly based on the interviewer and the interviewee. Therefore, written tests serve as a more objective and effective tool in assessing knowledge change in educational settings.