Question 1

Generally, qualitative researchers select a sample that is

Accepted Answer

A)  selected purposely. 
B)  as large as possible. 
C)  generalizable to a target population. 
D)  diverse demographically.

Question 2

Bonnie is conducting a study on the social skills of those children who have identified speech and language needs. She selects children who have Individual Education Plans for speech and language only and not any other educational exceptionalities. Bonnie is illustrating

Accepted Answer

A)  homogeneous sampling. 
B)  intensity sampling. 
C)  criterion sampling. 
D)  snowball sampling.

Question 3

Maria needs to randomly select 90 participants from a pool of 5000. With how many digits in each entry of the random number table will Maria need to be concerned?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4

Question 4

Some researchers have complained that most of the research that has been conducted with the benefits of animation for student learning has been done on college students enrolled in introductory courses at large research institutions. Assuming this is true what does this problem illustrate?

Accepted Answer

A)  Cluster sampling 
B)  Quota sampling 
C)  Purposive sampling 
D)  Convenience sampling

Question 5

Charleon is conducting a study to examine TechState employees' use of university computers for non-work related tasks. She would like to generalize her findings to all of the employees of the TechState University community. Given Charleon's study, which of the following is the target population?

Accepted Answer

A)  Members of University communities in the United States 
B)  Staff members of TechState University 
C)  Employees including faculty and staff of TechState University 
D)  Employees of the Universities in her geographic region

Question 6

When employing random purposive sampling, the initial sample is selected

Accepted Answer

A)  randomly. 
B)  by criterion. 
C)  purposively. 
D)  systematically.

Question 7

Marc is a qualitative researcher who needs to interview both expert and novice teachers for a study. He expects to interview about 50 teachers. Which sampling strategy will Marc likely use?

Accepted Answer

A)  Simple random 
B)  Systematic 
C)  Criterion 
D)  Intensity

Question 8

Sean knows a lot about racial tensions in public schools. He wants to conduct a quantitative study that examines the current state of affairs in public schools. He contacts two school districts that he identified, one has a history of problems and one does not. He randomly selects students from these schools to participate in his study. Sean used

Accepted Answer

A)  convenience sampling. 
B)  purposive sampling. 
C)  quota sampling. 
D)  multistage sampling.

Question 9

Maude is conducting an ethnographic study that concerns the transitions that older Americans face as they move into transitional housing. She is particularly interested in the potential differences in the challenges for men and women. She therefore is careful to include both men and women in her sample. Maude's strategy can best be categorized as

Accepted Answer

A)  systematic sampling. 
B)  intensity sampling. 
C)  homogeneous sampling. 
D)  cluster sampling.

Question 10

All forms of random sampling include the following steps EXCEPT

Accepted Answer

A)  listing all members of the population. 
B)  identifying the population. 
C)  determining sample size 
D)  selecting the sample.

Question 11

Peggy is conducting a reading intervention study that involves many children in many classrooms in many schools. The intervention is delivered by the teacher to the entire classes. Peggy would like to use a random sampling approach. Which of the following is Peggy likely to consider?

Accepted Answer

A)  Simple random sampling 
B)  Systematic sampling 
C)  Purposive random sampling 
D)  Multistage sampling

Question 12

Allie collected data from 22 medical education faculty at a large research university in the Midwest United States regarding their opinions of problem-based learning. Which of the following represents Allie's accessible population?

Accepted Answer

A)  All medical education faculty 
B)  Medical education faculty in the Midwest United States 
C)  Medical education faculty in her sample 
D)  Medical education faculty at the University

Question 13

Matt is a qualitative researcher interested in the benefits of community gardens on respect for cultural diversity. To conduct his study he selects 8 members of a community gardening group who are Anglo Americans whose families have been in the country for at least three generations and who have been members of the gardening community for at least two years. The sampling strategy Matt is using is best described as

Accepted Answer

A)  homogeneous. 
B)  criterion. 
C)  stratified. 
D)  intensity.

Question 14

Which of the following are two general indicators that determine adequacy of a qualitative sample size?

Accepted Answer

A)  Representativeness and redundancy 
B)  Generalizability and representativeness 
C)  Redundancy and clarity 
D)  Responsiveness and generalizability

Question 15

The type of random sampling that targets groups, not individuals is

Accepted Answer

A)  criteria. 
B)  cluster. 
C)  homogeneous. 
D)  simple random.

Question 16

Sammy collected data from 18 pre-service secondary science majors at a small university in the Western United States regarding their opinions of Inquiry as an instructional approach. Which of the following is likely Sammy's target population?

Accepted Answer

A)  All pre-service science teachers 
B)  Pre-service science teachers in the Western United States 
C)  Pre-service science teachers at the University 
D)  Pre-service science teachers in her sample

Question 17

Jacki is conducting a study that examines the effects of multi-vitamins on common cold symptoms. She hopes to generalize her findings to the school-age population of children in a specified region in her state. The population of children is 9,000. She is going to conduct a survey and decides to sample 7000 children. Regarding Jacki's sample we know that

Accepted Answer

A)  it is substantially too small. 
B)  it is not representative. 
C)  it will result in large sampling bias. 
D)  it is substantially too big.

Question 18

Derrick is conducting a stratified sampling procedure. His target sample is 250 from a population of 489 high school algebra students within a particular district. He wants to ensure he has the appropriate representation of students from at each ability level. Next he will

Accepted Answer

A)  identify and define the population. 
B)  determine desired sample size. 
C)  classify all members of the population as members of the subgroups. 
D)  randomly select an appropriate number of individuals to represent the subgroups.

Question 19

Joe is the director of middle school science education for the state and is interested in differences between teaching science content in thematic units or by teaching the content in the units as presented in the students' text. He randomly selects classrooms in the state to participate. This best illustrates

Accepted Answer

A)  simple random sampling. 
B)  systematic sampling. 
C)  stratified sampling. 
D)  cluster sampling.

Question 20

Graham recruited student volunteers to participate in his dissertation study. He set up several times for students to come to a specified classroom and read various types of instructional materials and to be tested. He ran all of his control conditions first and then for each session he placed all students at the session in the same treatment condition. This is problematic because those who volunteered early are likely different than those who volunteered later. This problem is primarily due to

Accepted Answer

A)  error rates. 
B)  sampling error. 
C)  researcher bias. 
D)  sampling bias.

Exam 5: Selecting a Sample