Question 1

The most important characteristic of a good sample is that it is free from what?

Accepted Answer

A)  Bias 
B)  Random facts 
C)  Random sampling 
A)  Bias 
B)  Random facts 
C)  Random sampling A

Question 2

If a research is interested in how freshmen and seniors in college differ in their opinion on alcohol consumption and would like to draw samples separately from each group, what kind of sampling is the researcher using?

Accepted Answer

A)  Simple random sampling 
B)  Stratified random sampling 
C)  Cluster random sampling 
A)  Simple random sampling 
B)  Stratified random sampling 
C)  Cluster random sampling B

Question 3

How is stratified random sampling superior to simple random sampling?

Accepted Answer

A)  Drawing participants at random from each stratum represents the same proportions in the population 
B)  Increases the chance of sampling error 
C)  Eliminates sampling error completely 
D)  Use a table of random numbers to select participants 
A)  Drawing participants at random from each stratum represents the same proportions in the population 
B)  Increases the chance of sampling error 
C)  Eliminates sampling error completely 
D)  Use a table of random numbers to select participants A

Question 4

in a large scale sampling, multistage random sampling is used.

Accepted Answer

A) True 
 B)False

Question 5

What is NOT an advantage of cluster random sampling?

Accepted Answer

A)  There are fewer individuals for the researcher to contact 
B)  It is useful for a large geographical area 
C)  The degree of cooperation is likely to be higher 
D)  The number of clusters instead of individuals to be treated as the sample size 
A)  There are fewer individuals for the researcher to contact 
B)  It is useful for a large geographical area 
C)  The degree of cooperation is likely to be higher 
D)  The number of clusters instead of individuals to be treated as the sample size

Question 6

Which is NOT true about a simple random sample?

Accepted Answer

A)  Put names on slips of paper and draw the number needed for the sample 
B)  Use a table of random numbers to select participants 
C)  Individuals in the population have an equal chance of being selected 
D)  Divide the population into strata 
A)  Put names on slips of paper and draw the number needed for the sample 
B)  Use a table of random numbers to select participants 
C)  Individuals in the population have an equal chance of being selected 
D)  Divide the population into strata

The most important characteristic of a good sample is that it is free from what?

If a research is interested in how freshmen and seniors in college differ in their opinion on alcohol consumption and would like to draw samples separately from each group, what kind of sampling is the researcher using?

How is stratified random sampling superior to simple random sampling?

in a large scale sampling, multistage random sampling is used.

What is NOT an advantage of cluster random sampling?

Which is NOT true about a simple random sample?

The Empirical Approach to Knowledge

Types of Empirical Research

Scales of Measurement

Descriptive, Correlational, and Inferential Statistics

Introduction to Sampling

Sample Size

Standard Error of the Mean

Frequencies, Percentages, and Proportions

Shapes of Distributions

The Mean: An Average

Mean, Median, and Mode

Range and Interquartile Range

Standard Deviation

Z-Score

Correlation

Pearson-R

Scattergram

Introduction to Hypothesis Testing

Decisions About the Null Hypothesis

Introduction to the T-Test

Independent Samples T-Test

Dependent Samples T-Test

One Sample T-Test

Reports of the Results of T-Tests

One-Way Anova

Two-Way Anova

Chi-Square Test

Limitations of Significance Testing

Effect Size

Coefficient of Determination

Multiple Correlation

Simple and Multiple Regression

Filters

Exam 6: Variations on Random Sampling

The most important characteristic of a good sample is that it is free from what?

If a research is interested in how freshmen and seniors in college differ in their opinion on alcohol consumption and would like to draw samples separately from each group, what kind of sampling is the researcher using?

How is stratified random sampling superior to simple random sampling?

in a large scale sampling, multistage random sampling is used.

What is NOT an advantage of cluster random sampling?

Which is NOT true about a simple random sample?

The Empirical Approach to Knowledge

Types of Empirical Research

Scales of Measurement

Descriptive, Correlational, and Inferential Statistics

Introduction to Sampling

Sample Size

Standard Error of the Mean

Frequencies, Percentages, and Proportions

Shapes of Distributions

The Mean: An Average

Mean, Median, and Mode

Range and Interquartile Range

Standard Deviation

Z-Score

Correlation

Pearson-R

Scattergram

Introduction to Hypothesis Testing

Decisions About the Null Hypothesis

Introduction to the T-Test

Independent Samples T-Test

Dependent Samples T-Test

One Sample T-Test

Reports of the Results of T-Tests

One-Way Anova

Two-Way Anova

Chi-Square Test

Limitations of Significance Testing

Effect Size

Coefficient of Determination

Multiple Correlation

Simple and Multiple Regression

Filters