Deck 13: Sampling Designs and Data Sources for Effect Evaluations

Question 1

Effect size and power are the same.

Answer 1

False

Question 2

The technique to collect data is called methods, and the overall plan for when and from whom data are collected is called ____________.

Answer 2

design

Question 3

What alternative term has been suggested recently for hard-to-reach? Why?

Answer 3

The term hardly reached has begun to replace the term hard-to-reach because hard-to-reach implies that this is the responsibility of the individuals rather than of the evaluators.

Question 4

How does purposive sampling differ from random sampling?

Question 5

Calculate a response rate using the following information. Out of 600 questionnaires assessing alcohol consumption sent out to the junior class at Layetteville High School, 450 were returned; 10 had responses marked only on the front pages (the back pages were omitted); and 10 were returned blank.

Question 6

Is accomplishment of client goals a reliable data source?

Question 7

List two ways to calculate an effect size.

Question 8

Write the basic formula for calculating a response rate from a survey using a questionnaire.

Question 9

What is the main reason low response rates are of concern?

Question 10

For each of the following, indicate whether it relates to nonresponse bias or response bias.

A) Social desirability
B) Attrition
C) Response set pattern
D) Hard-to-reach