________ is a statistical procedure that attempts to account for nonresponse by assigning differential weights to the data depending on the response rates

The most commonly used definitions of motivation include which of the following three dimensions?

A. Intensity, degree, persistence B. Severity, direction, perseverance C. Persistence, intensity, direction D. Instruction, degree, tenacity

The Wilcoxon signed rank test is used to test which of the following type of hypotheses?

A) Tests about a single population median B) Tests involving three or more population medians C) Tests about the variances of two or more populations D) Tests about two or more population proportions