The term "reliability" refers to the consistency of the outcomes achieved. The degree to which the researcher genuinely measures what he or she is attempting to assess is referred to as validity. Target A demonstrates a measurement with high reliability but low validity since the shots are consistent but not in the center of the target. Target B has high validity but low reliability since the shots are all over the place-some in front of, some behind, and some dead on. In general, measurements that rely on subjective reports by participants are less reliable than those that use objective indicators. For example, someone might say that they feel confident before taking a test, yet score poorly on it because they didn't study enough. In addition, questions that measure attitudes, opinions, or behaviors tend to be unreliable because people can change their answers to fit what others expect of them. For example, if you ask someone how they feel about obesity, they might say they dislike it even though what they really want to do is lose weight for a friend's wedding next week. Finally, measurements that depend on the judgment of the interviewer are generally considered less reliable than those that can be answered by looking at someone's behavior. For example, if the interviewer decides whether or not to give you credit based on his or her opinion of your performance, this would be considered an subjective measurement. In conclusion, measurements that rely on subjective reports by participants or observers are less reliable than those that use objective indicators.