• What Are The Four Forms Of Reliability?

The four major forms of reliability are internal consistency, test-retest, inter-rater, and intra-rater. These four types of reliability offer some sort of way to achieve standardization of scores of data. In staffing a company you may want to look at the test-retest model. The weakness of this method is obvious as depending on the time it takes to test the second time the variable being measured may have actually changed. This would be related to an informal interview including questions about the job and then coming back during the formal presentation to managers with the same types of questions. Of course if the meetings were several days apart the measure would be a lot more likely to be skewed because of the amount of time between tests.
The next form of reliability is inter-rater. This form of reliability can be compared to a panel interview where a group of people take independent ratings of people and the likelihood of this person being a good fit for the job. The panel then compares scores to either validate this type of system or prove that the ratings are too subjective to have merit. If all members consistently score certain characteristics high and those people selected perform well then there is merit to this type of system and being subjective is not a negative part of this form of reliability. The last form of reliability testing in intra-rater reliability. This can be compared to when there is a single person conducting the interviews and deciding to hire someone. This person would ask questions of each candidate and select the candidates him or her thought would excel at the job. This form would measure if the results from the single rater were consistently positive or negative in terms of the candidate performing strongly or weakly once hired into the