The Achiever is a unique test in that it combines mental and personality measurement in one instrument. It also has a scoring system that provides scores on a scale that can be related to the Normal Distribution and that easily relates scores to the job requirements by means of a benchmark of successful performers.
Stanine stands for STANDARD NINE. In the Stanine system, a line is set up and broken into nine standardized parts, and then contrasted to the Normal Distribution or Bell Curve. Thus, the general population is divided into 9 equal parts. Generally, scores in the 1 – 3 area are in the lower third of the general population. Scores in the 7 – 9 area are in the upper third of the general population, whereas the individuals who score in the 4-6 range represent the majority of the population. It is important to note that scores in a particular range are not necessarily good or bad. A score must be considered relative to the requirements of the job.
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The Achiever stanine scores are presented for comparison against a benchmark pattern. A benchmark pattern represents the range of scores on The Achiever of the requirements for successful performance in a particular job category. By utilizing a benchmark, an employer can “see” how an individual who has been tested with The Achiever compares to the requirements for success in the job category under consideration. Comparison of an individual’s scores on The Achiever to a benchmark provides concrete data as to a person’s likelihood for success on the job based on The Achiever results, and ensures that use of The Achiever is job related. Following is an Achiever score sheet with a Benchmark as represented by the brackets and dots […]:
There are Three Methods of creating a benchmark with The Achiever:
Option 1, the concurrent validation method, is the preferred approach. This option validates the use of The Achiever within a specific employer, providing additional insurance against claims of adverse impact. However, a concurrent validation study is not always possible due to limited number of top performers in a job category. When a concurrent study cannot be done, options 2 and 3 are viable alternatives.