Quiz 8 - Chapter 15 Flashcards
In general, as sample size increases
Sampling error decreases
Stratifying a population prior to drawing a sample
Generally occurs when the variables used to stratify are known to be associated with the dependent variable
A sampling interval of 10 was used to select a sample from a population of 5,000. How many elements are to be in the sample?
500
They avoid conscious and unconscious sampling bias is true about what kind of samples?
Probability Samples
You are doing research on hospital personnel. You want to be sure you draw a sample that has cases in each of the personnel categories. You want to use probability sampling. An appropriate strategy would be:
Stratified Sampling
A researcher randomly selects cities, then randomly selects churches in each selected city and then randomly selects members to be interviewed in each selected church. The research is using:
Simple Random Sampling
Every kth element in a list is chosen for inclusion in the sample in
Systematic sampling
You want to examine the relationship between family size and family cohesion. You use as your sample all the students in this research methods class. What kind of sampling design are you using?
Available Sampling
Drawing a judgmental sample
Allows researchers to use their prior knowledge about a topic
The unit about which information is collected and which provides the basis of analysis is called
Element