Question 1

What does the "95" in a 95% confidence interval refer to?

Accepted Answer

The 95 in a 95% confidence interval refe

Question 2

A correlation coefficient ranges from

Accepted Answer

A) 0.0 to +1.00 
B) 0.0 to -1.00 
C) -1.00 to 0.0 
D) -1.00 to +1.00 
A) 0.0 to +1.00 
B) 0.0 to -1.00 
C) -1.00 to 0.0 
D) -1.00 to +1.00

Question 3

Computer-assisted data analysis requires that the researcher have a good knowledge of

Accepted Answer

A) null hypothesis testing. 
B) computer hardware. 
C) research design and statistics. 
D) computer software. 
A) null hypothesis testing. 
B) computer hardware. 
C) research design and statistics. 
D) computer software.

Question 4

A negative correlation indicates that as values for one measure ___________,the values for the other measure ____________.

Accepted Answer

A) decrease,remain constant 
B) increase,remain constant 
C) increase,increase 
D) increase,decrease 
A) decrease,remain constant 
B) increase,remain constant 
C) increase,increase 
D) increase,decrease

Question 5

To construct a confidence interval for a comparison between two independent group means we substitute the ____________ for a single sample mean.

Accepted Answer

A) population mean 
B) difference between two sample means 
C) difference between the sample mean and the population mean 
D) difference between two population means 
A) population mean 
B) difference between two sample means 
C) difference between the sample mean and the population mean 
D) difference between two population means

Question 6

Which of the following is certainly not positively correlated?

Accepted Answer

A) SAT scores and college grades 
B) number of errors and number correct on an exam 
C) smoking and lung disease 
D) high school grades and college grades 
A) SAT scores and college grades 
B) number of errors and number correct on an exam 
C) smoking and lung disease 
D) high school grades and college grades

Question 7

Why is a confidence interval also called a "margin of error"?

Accepted Answer

A confidence interval is also

Question 8

A researcher tests a sample of first-grade children for a school district to help the district identify areas in which the curriculum should be changed.The measure is a valid and reliable measure of intelligence.The researcher estimates the population mean for the intelligence scores and observes a large value for the standard error of the mean.The best thing the researcher could do to improve the estimate is

Accepted Answer

A) test children in a different,more heterogeneous school district. 
B) compute a confidence interval. 
C) increase the sample size of children tested. 
D) change the testing procedures to increase the variability of the test scores. 
A) test children in a different,more heterogeneous school district. 
B) compute a confidence interval. 
C) increase the sample size of children tested. 
D) change the testing procedures to increase the variability of the test scores.

Question 9

When interpreting confidence intervals when there are three or more means,if the intervals overlap such that the sample mean of one group lies within the interval of another group,we may conclude that

Accepted Answer

A) the population means for the groups are different. 
B) the sample means are the same. 
C) the population means do not differ. 
D) the population mean for another group will be different. 
A) the population means for the groups are different. 
B) the sample means are the same. 
C) the population means do not differ. 
D) the population mean for another group will be different.

Question 10

Which of the following indicates the strongest correlation?

Accepted Answer

A) +.80 
B) +.40 
C) -.60 
D) -.90 
A) +.80 
B) +.40 
C) -.60 
D) -.90

Question 11

The 95% confidence interval for a population mean is calculated as follows:

Accepted Answer

A) population mean   (.95)(estimated standard error) 
B) population mean   (t critical)(estimated standard error) 
C) sample mean1   (t critical)(estimated standard error) 
D) sample mean   (.95)(estimated standard error) 
A) population mean   (.95)(estimated standard error) 
B) population mean   (t critical)(estimated standard error) 
C) sample mean1   (t critical)(estimated standard error) 
D) sample mean   (.95)(estimated standard error)

Question 12

A correlation coefficient is a ________ summary of the degree of relationship between two sets of scores.

Accepted Answer

A) subjective 
B) qualitative 
C) quantitative 
D) graphical 
A) subjective 
B) qualitative 
C) quantitative 
D) graphical

Question 13

A major approach to "confirming what the data reveal" is the calculation of

Accepted Answer

A) an effect size. 
B) stem-and-leaf displays. 
C) measures of central tendency. 
D) confidence intervals for a population parameter. 
A) an effect size. 
B) stem-and-leaf displays. 
C) measures of central tendency. 
D) confidence intervals for a population parameter.

What does the "95" in a 95% confidence interval refer to?

A correlation coefficient ranges from

Computer-assisted data analysis requires that the researcher have a good knowledge of

A negative correlation indicates that as values for one measure _,the values for the other measure __.

To construct a confidence interval for a comparison between two independent group means we substitute the ____________ for a single sample mean.

Which of the following is certainly not positively correlated?

Why is a confidence interval also called a "margin of error"?

When interpreting confidence intervals when there are three or more means,if the intervals overlap such that the sample mean of one group lies within the interval of another group,we may conclude that

Which of the following indicates the strongest correlation?

The 95% confidence interval for a population mean is calculated as follows:

A correlation coefficient is a ________ summary of the degree of relationship between two sets of scores.

A major approach to "confirming what the data reveal" is the calculation of

Introduction

The Scientifi C Method

Ethical Issues in the Conduct of Psychological Research

Observation

Survey Research

Independent Groups Designs

Repeated Measures Designs

Complex Designs

Single-Case Designs and Small-N Research

Quasi-Experimental Designs and Program Evaluation

Data Analysis and Interpretation: Part II Tests of Statisticalsignifi Cance and the Analysis Story

Communication in Psychology

Filters

Exam 11: Data Analysis and Interpretation: Part I Describing Data,confi Dence Intervals, Correlation

What does the "95" in a 95% confidence interval refer to?

A correlation coefficient ranges from

Computer-assisted data analysis requires that the researcher have a good knowledge of

A negative correlation indicates that as values for one measure ___________,the values for the other measure ____________.

To construct a confidence interval for a comparison between two independent group means we substitute the ____________ for a single sample mean.

Which of the following is certainly not positively correlated?

Why is a confidence interval also called a "margin of error"?

When interpreting confidence intervals when there are three or more means,if the intervals overlap such that the sample mean of one group lies within the interval of another group,we may conclude that

Which of the following indicates the strongest correlation?

The 95% confidence interval for a population mean is calculated as follows:

A correlation coefficient is a ________ summary of the degree of relationship between two sets of scores.

A major approach to "confirming what the data reveal" is the calculation of

Introduction

The Scientifi C Method

Ethical Issues in the Conduct of Psychological Research

Observation

Survey Research

Independent Groups Designs

Repeated Measures Designs

Complex Designs

Single-Case Designs and Small-N Research

Quasi-Experimental Designs and Program Evaluation

Data Analysis and Interpretation: Part II Tests of Statisticalsignifi Cance and the Analysis Story

Communication in Psychology

Filters

A negative correlation indicates that as values for one measure _,the values for the other measure __.