The Myers-Briggs Blazon Indicator (MBTI) is one of the best accepted personality tests in the apple today. However, abstracts advised from added than twenty MBTI analysis studies has adumbrated that the analysis has bare validity. In alternative words, MBTI does not abundantly admeasurement what it is meant to measure. Moreover, MBTI has appear believability coefficients for its four scales on accepted citizenry samples in the ranges from 0.61 to 0.87. Experts on psychometric testing acknowledge that believability coefficients for abbreviate personality tests should actually be in the ambit of 0.7 to 0.8 (Psychometric Success).
Does this beggarly that MBTI is unreliable? – No. While this important personality analysis sometimes reveals a lower believability accessory than the alternative personality tests, alike back its believability accessory is abutting to 0.61, the analysis is said to accord us a dependable admeasurement of the constructs it measures at atomic 61% of the time. To put it addition way, at atomic 61% of the bodies who use the MBTI already would see that their array on the altered constructs of the analysis would not change on a additional testing affair and all consecutive testing sessions.
Reliability is additionally accepted as “repeatability” or “consistency.” A analysis with absolute believability has a accessory of 1.0. A analysis with no believability whatsoever has a accessory of 0. A analysis with absolute believability is one which gives us actually constant after-effects with the aforementioned sample. The college the reliability, the bigger is a test, scientifically, accustomed that we can assurance the after-effects of this analysis with confidence, alive that they will not change acutely through retesting (Trochim, 2006).
With MBTI, we can be assured that the analysis would appearance us a accurate account of an individual’s personality at atomic 61% of the time. Although this amount is bigger than 50%, MBTI would have given us greater aplomb in agreement of its altitude if its believability accessory consistently fell in the ambit of 0.8 to 0.9. This would accept led us to accept that MBTI is best absolutely a accurate admeasurement of an individual’s personality type.
1.Psychometric Success. “Myers-Briggs Widely Used But Still Controversial.” Available at http://www.psychometric-success.com/index.htm. (31 January 2007).
2. Trochim, William. (2006). “Theory of Reliability.” Analysis Methods Knowledge Base. Available at http://www.socialresearchmethods.net/kb/reliablt.php. (31 January 2007).
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