1. If a sample is subdivided into subsamples, a minimal sample size of 10 is necessary for every subsample.

True False

2. From statistical considerations the preference is given to probability sampling over non-probability sampling.

True False

3. Non-probability sampling leads to findings that are highly generalizable.

True False

4. Construct validity ensures that the measure includes an adequate and representative set of items.

True False

5. The difference between an ordinal and ratio scale is that the ordinal scale has an absolute zero point.

True False

6. Concurrent validity is a form of construct validity.

True False

7. As a rule, probability sampling leads to a representative sample.

True False

8. Stratified sampling and cluster sampling are examples of probability sampling.

True False

9. The assessment of the goodness of a scale relates to both the validity and reliability of this scale.

True False

10. When representatively is an important criterion for a study, which sampling technique would you choose?

A) Systematic sampling.

B) Judgment sampling.

C) Quota sampling.

D) Convenience sampling.

11. Robert stands three times on a pair of scales in a period of 5 minutes. The first time he weighs 92 kg, the second time he weighs 102 kg and the third time he weighs 95 kg. What conclusion can we draw based on this information on the pair of scales?

A) The pair of scales is reliable and valid.

B) The pair of scales is not reliable.

C) The pair of scales is not valid.

D) The pair of scales is not reliable and not valid.

12. Which of the following sampling designs is a form of non-probability sampling?

A) Systematic sampling.

B) Area sampling.

C) Quota sampling.

D)Cluster sampling.

13.A disadvantage of cluster sampling is that it:

A)Is the least efficient form of probability sampling.

B)Requires homogeneous subgroups.

C)Takes a lot of time to collect data.

D)Is not easy to execute.

14.About a scale (set of questions) it can be said that it is if it measures what it should be measuring.

A)Reliable.

B)Accurate.

C)Valid.

D)Consistent.