Home

Chapter 4

Practice Quiz

Practice Quiz

This activity contains 35 questions.

	The process of selecting a number of participants for a study in such a way that they represent the larger group from which they were selected is known as   research design. sampling. data collection. random assignment.

	Mr. Norris is studying the effects of two innovative instructional strategies on student achievement. He randomly selected 60 students from the 1,512 students in his community college to participate in the study. These 60 students are referred to most appropriately as the   research group. target population. accessible population. sample.

	Mr. Gallagher is conducting a study of college freshmen in Louisiana. He has been able to compile a list of every freshman enrolled in the state supported universities, but the information on students attending private universities is not available to him. The students on his list are referred to as the   target population. accessible population. sample. stratified sample.

	The purpose of random sampling is to ensure   a sufficient sample size. a clearly defined target population. representativeness of the sample. representation of specific subgroups in the population.

	Which of the following is a basic step in selecting a sample from a population regardless of the specific technique being used?   Identify the population Define the sample size Select a sample All of these

	Ms. LeBlanc has defined her population and listed most of the members of that population. Why is it necessary for her to continue to identify all of the members before beginning to randomly select her sample?   She needs the larger population. Some members of the population would not have an equal chance of being in the sample. She needs larger sample. Some members of the sample might not be in the population.

	Which of the following is NOT a random sampling technique?   Purposive sampling Stratified sampling Cluster sampling Systematic sampling

	Which of the following is NOT a general rule for determining sample size?   Select a maximum of 20 subjects for correlational research designs. Select a minimum of 30 subjects per group in a causal-comparative research design. Select about 20% of the population in a descriptive study. Select about 60 subjects for a two-group experimental design.

	Which sample size would you recommend for a survey if the population consists of 90 subjects?   18 (20%) subjects 30 (30%) subjects 45 (50%) subjects 90 (100%) subjects

	Which type of sampling procedure should Ms. Weber use to draw a sample that is not biased?   Non-probability Concurrent Random Convenience

	Which of the following is an advantage of random sampling?   It is easy to conduct. It is likely to achieve a representative sample. It meets the assumptions of the common statistical procedures used to analyze quantitative data. All of these.

	Ms. Washington is investigating teachers' attitudes toward year-round schooling. She is particularly interested in describing the attitudes of teachers from small, medium, and large schools. Which sampling procedure should be used by Ms. Washington to ensure her sample is representative of these types of schools?   Simple random sampling Stratified random sampling Systematic sampling Convenience sampling

	In which of the following situations would stratified sampling be recommended?   The population has more males than females, and the researcher is studying a topic related to gender. There are four distinct ethnic groups in New Orleans, and the researcher wants to be assured each group is represented equally in the sample. A superintendent wants to be sure she selects teachers from elementary, middle/junior high, and high schools in numbers that are equal to the proportions of teachers in these types of school in her district. All of these.

	Which of the following is NOT likely to be used to stratify a sample for a study investigating the use of a computerized algebra program?   Gender Ethnicity Socio-economic status Number of siblings in the home

	When a principal selects a sample of 30 subjects from each of the grades in her school, she is likely using which type of sampling technique?   Random Proportional stratified random Non-proportional stratified random Cluster

	Suppose Mr. North randomly selected school districts from the state, randomly selected schools from within those selected districts, and randomly selected U.S. History classes from within those schools. His sampling technique is best described as   random stratified random. cluster. multi-stage cluster.

	Mr. Marino has compiled a list of 1,348 students in his high school. He has selected a sample of 42 students by choosing every 14th student on this list. Which type of sampling is he using?   Random Stratified random Cluster Systematic

	Which of the following concerns is MOST likely to become a problem if Ms. Bellau uses purposive sampling techniques?   Generalizability to the population Statistically equal groups Subjects participating in the study Selection of participants who are thought to be informative, articulate, and experienced with the research topic and setting

	Which of the following is a logical reason for using non-random sampling?   Students have already been assigned to classes. Non-random sampling assures the researcher of selecting equivalent groups. Representation is a concern. Generalizability is a concern.

	Which of the following is a concern with using non-random sampling techniques?   Generalization of the results Difficulty describing the population Representativeness of the population All of these

	Dr. Wise has chosen to use four classes of sixth grade students in a local school because he has an excellent relationship with the principal and teachers in that school. Which sampling technique is he likely to use?   Quota Random Cluster Convenience

	Dr. Gaffney chose to conduct her study in a school known for its effectiveness as measured by very high standardized test scores. Which sampling technique did she use in selecting this school?   Quota Convenience Purposive Random

	Dr. Waterman was told to select his sample in a manner to assure there were at least 10 foreign language teachers, 10 health teachers, 15 art teachers, and 15 music teachers. Which non-random sampling technique should he use?   Quota Convenience Purposive Stratified

	Sampling error is controlled by   purposive sampling. carefully reviewing the sampling process. randomly selecting large samples from the population. randomly selecting 10% of the population.

	When Dr. Paradise uses only those graduate students who earned an 'A' in his educational research class, he is likely going to have a problem with which of the following?   Sampling error Non-respondents Sampling bias Stratification

	When Dr. Miller selects a small number of individuals for a study in such a way that the chosen individuals will be able to help her understand the phenomenon under investigation, she is using   Quantitative sampling Random sampling Qualitative sampling All of these

	Which of the following characteristics suggests using a qualitative sampling technique?   The intense level of interaction between the research and participants The desired depth of information required to understand the phenomenon of interest The long timeframe for conducting the research All of these

	Which type of sampling strategy is exemplified by selecting two types of individuals—those who are extremely happy and those who are extremely sad.   Snowball Intensity Homogeneous Purposive

	Which sampling technique is Coach Long using when he selects only all-star baseball players for his sample?   Snowball Intensity Criterion Quota

	Which sampling technique is Dr. Shealy using when he selects only students who have been held back one or more years?   Snowball Intensity Criterion Quota

	Which sampling technique is Dr. Alexander using when he uses the advice of several participants to contact others who might participate in his study?   Snowball Intensity Criterion Quota

	Which type of sampling strategy is exemplified by selecting specific principals because faculty and colleagues believe them to be highly effective?   Intensity Homogeneous Snowballing Quota

	Which sampling procedure is Dr. Helms using when he randomly selects 15 of the 25 subjects identified through purposive sampling?   Snowball Homogeneous Intensity Random purposive

	Which of the following characteristics clearly differentiates probability and purposive sampling?   Sample sizes are typically the same. Probability sampling starts with a defined population and selects a sample from it, while non-probability sampling starts with a sample and defines the population relative to the characteristic of that sample. Probability sampling makes it difficult to generalize from the sample to populations, while non-probability sampling makes it easy to do so. More than one technique can be used to select a sample with either approach.

	Ms. Landry has begun to hear the same things from each additional participant she interviews. What would you advise her to do in terms of her sample size?   Stop sampling Select a few more participants Select at least 10 more participants Continue to sample until her quota is reached

Copyright © 1995 - 2010 Pearson Education . All rights reserved. Pearson Prentice Hall is an imprint of Pearson . Legal Notice | Privacy Policy | Permissions