A researcher wants to measure content-sampling error and has two versions of an achievement test available. What measure of estimating reliability would be best in this situation?

Alternate form reliability

Explanation:

Alternate form are a set of test items that are developed to be similar to another set of test items, so that the two sets represent different versions of the same test.

It occurs when an individual participating in a research or testing scenario is given two different versions of the same test at different times. The scores are then compared to see if it is a reliable form of testing

9) a & b

10) true.

11) false.

12) false.

13) true.

14) false.

15) true.

16) true.

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answer; the edward snowden leaks of nsa classified material;