Exam 10: Sampling in Quantitative, Qualitative, and Mixed Research

A researcher is studying underachievement of gifted children in a qualitative study. She samples two children who are achieving beyond expectations and two children who are achieving well below expectations in her sample. What sampling technique did she use?

Explain the difference between proportional and disproportional stratified sampling.

A principal was interested in how the paraeducators in her school thought the school year had gone. As a result, he interviewed all of them to find out their perceptions. She used

Draw a simple random sample.

Most experimental research studies use randomly selected samples.

Snowball sampling is advantageous when one is:

Explain the difference between random selection and random assignment.

An example of an element is a:

Comprehensive sampling in qualitative research involves:

Luke was looking at his sampling frame. He noticed that every 8^th element in the sampling frame was in a particular income group. This finding is evidence of:

Which of the following is NOT an equal probability of selection method of sampling:

Dr. Dewey used systematic sampling for his current research study. This sampling strategy:

If you are studying a population of 200 students and you want a sample size of 25, then the sampling interval (k) in systematic sampling would be equal to 8.

A researcher would like to understand why some young people begin taking drugs and eventually drop out of school while others from the same neighborhood stay in school, go on to college, and do very well in college. A study of these two groups would likely be based on what type of sampling?

If the clusters are of equal sizes, then cluster sampling is an equal probability selection method.

One advantage of cluster sampling is that:

The sampling methods used in mixed research vary in terms of the times at which the data are collected and whether the same participants supply quantitative and qualitative data.

Dr. Berry wanted to draw a sample of 20 students from the 200 graduate students in education at his university. He developed a list of the graduate students who were education majors and beginning at the sixth student on the list he selects every tenth student from the list to be in the sample. Dr. Berry has created a:

Draw a systematic sample.

Another term for criterion-based selection is: