Question 1

When the median is the measure of central tendency,the ________ is the most appropriate and informative measure of dispersion.

Accepted Answer

A) standard deviation 
B) interquartile range 
C) range 
D) mean 
A) standard deviation 
B) interquartile range 
C) range 
D) mean

Question 2

The measure(s)of central tendency that is/are appropriate for use with nominal data is/are:

Accepted Answer

A) the median only. 
B) the mode only. 
C) the median and the mean. 
D) the median and the mode. 
A) the median only. 
B) the mode only. 
C) the median and the mean. 
D) the median and the mode.

Question 3

Researchers do not want to make a Type II error,because if their study has an effect,they want to be able to find it.Thus,they make their studies as powerful as they can.Of the following,the best way to increase the power of a study is to:

Accepted Answer

A) raise the significance level used for the study. 
B) use inferential statistics. 
C) test a large sample. 
D) compute fewer statistical analyses. 
A) raise the significance level used for the study. 
B) use inferential statistics. 
C) test a large sample. 
D) compute fewer statistical analyses.

Question 4

On the basis of statistical findings,Becky determines that the difference between males and females on a test of abstract mathematical reasoning is merely due to chance.If,in fact,there are gender differences in the population,Becky will have made a:

Accepted Answer

A) Type I error. 
B) Type II error. 
A) Type I error. 
B) Type II error.

Question 5

The percentile rank allows the researcher to determine:

Accepted Answer

A) how far a target individual's score is from the group mean. 
B) what percentage of individuals in the sample scored above the target individual. 
C) the mean for the population based on the mean for the sample. 
D) what percentage of individuals in the sample scored below the target individual. 
A) how far a target individual's score is from the group mean. 
B) what percentage of individuals in the sample scored above the target individual. 
C) the mean for the population based on the mean for the sample. 
D) what percentage of individuals in the sample scored below the target individual.

Question 6

When conducting a meta-analysis,a researcher will typically:

Accepted Answer

A) identify interval estimates for the population parameters. 
B) reject the null hypothesis and conclude there's a significant effect. 
C) compare the effect sizes for a set of independent studies on a single topic. 
D) use nonparametric statistical techniques. 
A) identify interval estimates for the population parameters. 
B) reject the null hypothesis and conclude there's a significant effect. 
C) compare the effect sizes for a set of independent studies on a single topic. 
D) use nonparametric statistical techniques.

Question 7

Statistical hypothesis testing involves testing the:

Accepted Answer

A) research hypothesis. 
B) probability level. 
C) significance level. 
D) null hypothesis. 
A) research hypothesis. 
B) probability level. 
C) significance level. 
D) null hypothesis.

Question 8

Characteristics of populations are known as:

Accepted Answer

A) Concepts 
B) Parameters 
C) Statistics 
D) Estimations 
A) Concepts 
B) Parameters 
C) Statistics 
D) Estimations

When the median is the measure of central tendency,the ________ is the most appropriate and informative measure of dispersion.

The measure(s)of central tendency that is/are appropriate for use with nominal data is/are:

Researchers do not want to make a Type II error,because if their study has an effect,they want to be able to find it.Thus,they make their studies as powerful as they can.Of the following,the best way to increase the power of a study is to:

On the basis of statistical findings,Becky determines that the difference between males and females on a test of abstract mathematical reasoning is merely due to chance.If,in fact,there are gender differences in the population,Becky will have made a:

The percentile rank allows the researcher to determine:

When conducting a meta-analysis,a researcher will typically:

Statistical hypothesis testing involves testing the:

Characteristics of populations are known as:

The Nature and Tools of Research

The Problem: the Heart of the Research Process

Review of the Related Literature

Planning Your Research Project

Writing the Research Proposal

Descriptive Research

Experimental, quasi-Experimental, and Ex Post Facto Designs

Qualitative Research Methods

Mixed-Methods Designs

Action Research and Participatory Designs

Analyzing Qualitative and Mixed-Methods Data

Planning and Preparing a Final Research Report

Filters

Exam 11: Analyzing Quantitative Data

When the median is the measure of central tendency,the ________ is the most appropriate and informative measure of dispersion.

The measure(s)of central tendency that is/are appropriate for use with nominal data is/are:

Researchers do not want to make a Type II error,because if their study has an effect,they want to be able to find it.Thus,they make their studies as powerful as they can.Of the following,the best way to increase the power of a study is to:

On the basis of statistical findings,Becky determines that the difference between males and females on a test of abstract mathematical reasoning is merely due to chance.If,in fact,there are gender differences in the population,Becky will have made a:

The percentile rank allows the researcher to determine:

When conducting a meta-analysis,a researcher will typically:

Statistical hypothesis testing involves testing the:

Characteristics of populations are known as:

The Nature and Tools of Research

The Problem: the Heart of the Research Process

Review of the Related Literature

Planning Your Research Project

Writing the Research Proposal

Descriptive Research

Experimental, quasi-Experimental, and Ex Post Facto Designs

Qualitative Research Methods

Mixed-Methods Designs

Action Research and Participatory Designs

Analyzing Qualitative and Mixed-Methods Data

Planning and Preparing a Final Research Report

Filters