Question 1

When might you need a larger sample to represent the population?

Accepted Answer

A)  the amount of variability within groups is small 
B)  the difference between the two groups is small 
C)  the difference between the two groups is great 
D)  both a and c 
A)  the amount of variability within groups is small 
B)  the difference between the two groups is small 
C)  the difference between the two groups is great 
D)  both a and c B

Question 2

Which of the following selection processes is the most random?

Accepted Answer

A)  using a class of introductory psychology students 
B)  picking every third person 
C)  using a table of random numbers to select from the list of possible participants 
D)  throwing darts at the names of subjects on a dartboard 
A)  using a class of introductory psychology students 
B)  picking every third person 
C)  using a table of random numbers to select from the list of possible participants 
D)  throwing darts at the names of subjects on a dartboard C

Question 3

When is a stratified sample an appropriate sampling technique?

Accepted Answer

A)  specific characteristics of the population are of no concern 
B)  individuals in a population are not equal 
C)  each member must have an equal chance of being selected 
D)  you have a small population 
A)  specific characteristics of the population are of no concern 
B)  individuals in a population are not equal 
C)  each member must have an equal chance of being selected 
D)  you have a small population B

Question 4

Which of the following explains the use of probability sampling?

Accepted Answer

A)  the likelihood of any one member of a population being selected is known 
B)  the likelihood any one member of a population being selected is unknown 
C)  randomly selecting any one member from the population is effective 
D)  randomly selecting any one member from the population is underestimated 
A)  the likelihood of any one member of a population being selected is known 
B)  the likelihood any one member of a population being selected is unknown 
C)  randomly selecting any one member from the population is effective 
D)  randomly selecting any one member from the population is underestimated

Question 5

What is a disadvantage of quota sampling?

Accepted Answer

A)  It is time-consuming and tedious. 
B)  There are no disadvantages. 
C)  The degree of generalizability is questionable. 
D)  It is expensive. 
A)  It is time-consuming and tedious. 
B)  There are no disadvantages. 
C)  The degree of generalizability is questionable. 
D)  It is expensive.

Question 6

Why is the statement "the larger the sample, the better" NOT always accurate?

Accepted Answer

The statement "the larger the sample, th

Question 7

How might a researcher minimize sampling error?

Accepted Answer

A)  using convenience samples 
B)  randomly assigning individuals to groups 
C)  decreasing sample size 
D)  asking friends to answer a questionnaire 
A)  using convenience samples 
B)  randomly assigning individuals to groups 
C)  decreasing sample size 
D)  asking friends to answer a questionnaire

Question 8

Susan calls every 10th name in the student phone book to ask them to participate in her study. This is an example of ________________________.

Accepted Answer

A)  simple random sampling 
B)  stratified sampling 
C)  convenience sampling 
D)  quota sampling 
A)  simple random sampling 
B)  stratified sampling 
C)  convenience sampling 
D)  quota sampling

Question 9

Which sampling technique can assure that the profile of the sample matches the profile of the population?

Accepted Answer

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

Question 10

If you are mailing out surveys for your research, you should increase your sample size by what percent?

Accepted Answer

A)  10%-15% 
B)  20%-30% 
C)  40%-50% 
D)  60%-70% 
A)  10%-15% 
B)  20%-30% 
C)  40%-50% 
D)  60%-70%

Question 11

Which sampling technique is the most time-consuming?

Accepted Answer

A)  simple random sampling 
B)  quota sampling 
C)  systematic sampling 
D)  cluster sampling 
A)  simple random sampling 
B)  quota sampling 
C)  systematic sampling 
D)  cluster sampling

Question 12

Estimating sample size requires that you know which of the following?

Accepted Answer

A)  standard deviations of the independent variable 
B)  critical values needed at the .60 level of rejection 
C)  overall differences estimated between groups 
D)  desired number in the sample 
A)  standard deviations of the independent variable 
B)  critical values needed at the .60 level of rejection 
C)  overall differences estimated between groups 
D)  desired number in the sample

Question 13

Explain how to use a table of random numbers.

Accepted Answer

Using a table of random numbers can be h

Question 14

In which sampling technique does each member of the population have an equal and independent chance of being selected to be part of the sample?

Accepted Answer

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

Question 15

Why does increasing the number of people in a sample decrease the sampling error?

Accepted Answer

Increasing the number of people in a sam

Question 16

Which of the following statements is true with respect to sample size?

Accepted Answer

A)  use small samples when mailing questionnaires 
B)  the greater the number of subgroups of interest to the study, the larger the sample 
C)  more subjects are always better 
D)  large samples increase sampling error 
A)  use small samples when mailing questionnaires 
B)  the greater the number of subgroups of interest to the study, the larger the sample 
C)  more subjects are always better 
D)  large samples increase sampling error

Question 17

What does generalizability refers to?

Accepted Answer

A)  results that may be applied to different populations in different settings 
B)  results that apply only to the sample studied 
C)  convenience sampling 
D)  using a table of random numbers 
A)  results that may be applied to different populations in different settings 
B)  results that apply only to the sample studied 
C)  convenience sampling 
D)  using a table of random numbers

Question 18

Sampling error can be defined by which of the following statements?

Accepted Answer

A)  increased by increasing sample size 
B)  larger as the diversity of sample values becomes smaller 
C)  can be minimized by using simple random sampling 
D)  becomes equal to zero over many samples 
A)  increased by increasing sample size 
B)  larger as the diversity of sample values becomes smaller 
C)  can be minimized by using simple random sampling 
D)  becomes equal to zero over many samples

Question 19

Which of the following statements is true of systematic sampling?

Accepted Answer

A)  more precise than simple random sampling 
B)  a little more difficult and involved than simple random sampling 
C)  not all members of the population have an equal chance to be selected 
D)  ensures that the profile of the sample matches the profile of the population 
A)  more precise than simple random sampling 
B)  a little more difficult and involved than simple random sampling 
C)  not all members of the population have an equal chance to be selected 
D)  ensures that the profile of the sample matches the profile of the population

Question 20

Sally selects classrooms of first graders to study the effects of teaching styles on math achievement. This is an example of ________________________.

Accepted Answer

A)  stratified random sampling 
B)  cluster sampling 
C)  proportional sampling 
D)  sampling error 
A)  stratified random sampling 
B)  cluster sampling 
C)  proportional sampling 
D)  sampling error

When might you need a larger sample to represent the population?

Which of the following selection processes is the most random?

When is a stratified sample an appropriate sampling technique?

Which of the following explains the use of probability sampling?

What is a disadvantage of quota sampling?

Why is the statement "the larger the sample, the better" NOT always accurate?

How might a researcher minimize sampling error?

Susan calls every 10th name in the student phone book to ask them to participate in her study. This is an example of ________________________.

Which sampling technique can assure that the profile of the sample matches the profile of the population?

If you are mailing out surveys for your research, you should increase your sample size by what percent?

Which sampling technique is the most time-consuming?

Estimating sample size requires that you know which of the following?

Explain how to use a table of random numbers.

In which sampling technique does each member of the population have an equal and independent chance of being selected to be part of the sample?

Why does increasing the number of people in a sample decrease the sampling error?

Which of the following statements is true with respect to sample size?

What does generalizability refers to?

Sampling error can be defined by which of the following statements?

Which of the following statements is true of systematic sampling?

Sally selects classrooms of first graders to study the effects of teaching styles on math achievement. This is an example of ________________________.

The Role and Importance of Research

The Research Process: Coming to Terms

A: Selecting a Problem and Reviewing the Research

B: Ethics: the Basic Principles

Measurement, Reliability, and Validity

Methods of Measuring Behavior

Data Collection and Descriptive Statistics

Introducing Inferential Statistics

Nonexperimental Research: Descriptive and Correlational Methods

Nonexperimental Research: Qualitative Methods

Pre- and True Experimental Research Methods

Quasi-Experimental Research: a Close Cousin to Experimental Research

Writing a Research Proposal

Writing a Research Manuscript

Filters

Exam 4: Sampling and Generalizability

When might you need a larger sample to represent the population?

Which of the following selection processes is the most random?

When is a stratified sample an appropriate sampling technique?

Which of the following explains the use of probability sampling?

What is a disadvantage of quota sampling?

Why is the statement "the larger the sample, the better" NOT always accurate?

How might a researcher minimize sampling error?

Susan calls every 10th name in the student phone book to ask them to participate in her study. This is an example of ________________________.

Which sampling technique can assure that the profile of the sample matches the profile of the population?

If you are mailing out surveys for your research, you should increase your sample size by what percent?

Which sampling technique is the most time-consuming?

Estimating sample size requires that you know which of the following?

Explain how to use a table of random numbers.

In which sampling technique does each member of the population have an equal and independent chance of being selected to be part of the sample?

Why does increasing the number of people in a sample decrease the sampling error?

Which of the following statements is true with respect to sample size?

What does generalizability refers to?

Sampling error can be defined by which of the following statements?

Which of the following statements is true of systematic sampling?

Sally selects classrooms of first graders to study the effects of teaching styles on math achievement. This is an example of ________________________.

The Role and Importance of Research

The Research Process: Coming to Terms

A: Selecting a Problem and Reviewing the Research

B: Ethics: the Basic Principles

Measurement, Reliability, and Validity

Methods of Measuring Behavior

Data Collection and Descriptive Statistics

Introducing Inferential Statistics

Nonexperimental Research: Descriptive and Correlational Methods

Nonexperimental Research: Qualitative Methods

Pre- and True Experimental Research Methods

Quasi-Experimental Research: a Close Cousin to Experimental Research

Writing a Research Proposal

Writing a Research Manuscript

Filters