Ch 19 and 20

​ (a)   the general population that the study seeks to understand.

• Target Population
• Source Population
• Sample Population

​ (a)   The specific individuals from which a representative sample will be drawn.

• Source population
• Sample population
• Target population

​ (a)   Individual asked to participate

• Sample population
• Study population
• Source population

​ (a)   Eligible participants

• Study population
• Target population
• Sample population

​ (a)   Each person has an equal chance of being selected

• Simple random sampling
• Systematic sampling
• Stratified sampling

After a random start point, every nth person is selected.

In the health sciences, the __________________ is usually the number of individual humans in the study population.

• sample size

• confidence interval

• sample means

• sample size calculator

occurs when a study population yields a statistically significant test result even though a significant difference or association does not actually exist in the source population

occurs when a statistical test of data from a study population finds no significant result even though a significant difference or association actually exists in the source population.

is the ability of a test to detect significant differences in a population when differences really do exist.