4/16/2023 0 Comments Validity reliability and accuracyThey are inherently unpredictable and transitory. Random errors in measurement are inconsistent errors that happen by chance. Random Errors: Random error is a term used to describe all chance or random factors than confound-undermine-the measurement of any phenomena. Target C shows a measure with good validity and good reliability because all of the shots are concentrated at the center of the target. Target A shows a measurement that has good reliability, but has poor validity as the shots are consistent, but they are off the center of the target. The shots are neither consistent nor accurate. In the illustration below, Target B represents measurement with poor validity and poor reliability. Reliability and validity are often compared to a marksman's target. Validity is the degree to which the researcher actually measures what he or she is trying to measure. Reliability means that the results obtained are consistent. Accurate results are both reliable and valid. All researchers strive to deliver accurate results.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |