Chapter 01

4. A sampling method where samples are taken from a group that is conveniently accessible.
6. Data that can only take certain values.
8. Data that describes qualities or characteristics.
10. A measurable characteristic of a population.
14. A variable that influences both the dependent variable and independent variable, causing a spurious association.
15. A type of data that can take any value within a range.
16. Data that can be ranked but not measured.
19. A sampling method where every nth member of the population is selected.
20. Data that can be measured and expressed numerically.

1. A measure that describes a characteristic of a sample.
2. A sampling method that divides the population into subgroups and samples from each.
3. A study where the researcher observes without intervention.
5. Data that can be categorized but not ranked.
7. A subset of the population.
9. A sampling method where individuals choose to participate.
11. A sampling method where every member of the population has an equal chance of being selected.
12. A systematic error that results in an incorrect estimate of the association between exposure and outcome.
13. The entire group that is the subject of a study.
15. A group of subjects having similar characteristics.
17. Facts and statistics collected together for reference or analysis.
18. Individuals who do not respond to a survey or study.