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I__. - International Military Testing Association

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an item is for a certain level of test and the two SKTs are constructed inde-<br />

pendently. Typically, both the specialty training standard (STS) and the<br />

occupational survey report (OSR) which are used in the development of SKTs,<br />

show that different levels of knowledge are required for these ranks and that<br />

different types of tasks are associated with E-5 and E-6/7 positions.<br />

Finally, a fourth post hoc analysis was conducted to examine the test populations<br />

of the 48 SKTs studied. It was hypothesized that SKTs with higher test<br />

populations would more likely be the SKTs with significant correlation be-<br />

tween CV-Avg and item statistics since statistics from higher populations are<br />

more reliable. .<br />

The first three post hoc analyses were conducted using chi-square tests of<br />

statistical significance. Even though eight of the 19 career fields with<br />

significant correlation between CV-Avg and DIFF were from the electronic area,<br />

no significant difference was found (p

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