Question 1

Random irrelevancies in a setting are most related to a ____.

Accepted Answer

A) weaker signal 
B) lower level of noise 
C) stronger signal 
D) higher level of noise 
A) weaker signal 
B) lower level of noise 
C) stronger signal 
D) higher level of noise D

Question 2

What is the mean of this set of scores?
4,6,7,7,9,3,10,4,2,9

Accepted Answer

A) 4 
B) 6.5 
C) 6.1 
D) 7 
A) 4 
B) 6.5 
C) 6.1 
D) 7 C

Question 3

The ____ is the highest score minus the lowest score.

Accepted Answer

A) dispersion 
B) median 
C) mode 
D) range 
A) dispersion 
B) median 
C) mode 
D) range D

Question 4

The ____ describes each variable in the data and indicates where and how it can be accessed.

Accepted Answer

A) guidebook 
B) bibliography 
C) codebook 
D) descriptive analysis 
A) guidebook 
B) bibliography 
C) codebook 
D) descriptive analysis

Question 5

Poor reliability of treatment implementation can result in increased risk of ____.

Accepted Answer

A) Type I error only 
B) Type II error only 
C) both Type I and Type II errors 
D) neither Type I nor Type II error 
A) Type I error only 
B) Type II error only 
C) both Type I and Type II errors 
D) neither Type I nor Type II error

Question 6

Beryl is conducting an observational study and has trained two raters to use the rating instrument.Both of the raters drop out just after the study has begun,so Beryl has to substitute in less well-trained raters.Beryl has increased the risk of ____.

Accepted Answer

A) low reliability of the measure 
B) low strength of the intervention 
C) poor reliability of treatment implementation 
D) random irrelevancies in the setting 
A) low reliability of the measure 
B) low strength of the intervention 
C) poor reliability of treatment implementation 
D) random irrelevancies in the setting

Question 7

List and describe the three steps typically involved in data analysis.

Accepted Answer

1.Data preparation involves logging the

Question 8

The ____ is the score at the middle,or 50th percentile,of a group of scores.

Accepted Answer

A) dispersion 
B) median 
C) mode 
D) range 
A) dispersion 
B) median 
C) mode 
D) range

Question 9

Which correlation is used when one variable is a continuous interval variable and the other is dichotomous?

Accepted Answer

A) Pearson product moment 
B) Spearman rank order 
C) point biserial 
D) Tukey 
A) Pearson product moment 
B) Spearman rank order 
C) point biserial 
D) Tukey

Question 10

If a researcher sets alpha at .05,the probability of a Type II error ____.

Accepted Answer

A) = .05 
B) = .10 
C) =  .95​ 
D) cannot be calculated from alpha 
A) = .05 
B) = .10 
C) =  .95​ 
D) cannot be calculated from alpha

Question 11

In terms of signal and noise,a Type I error represents a ____.

Accepted Answer

A) false positive 
B) false negative 
C) true positive 
D) true negative 
A) false positive 
B) false negative 
C) true positive 
D) true negative

Question 12

A life satisfaction scale has both positively-worded items (e.g. ,"I feel as though life is good to me")and negatively-worded items (e.g. ,"I have nothing to look forward to.").All items use a scale of 1 ("disagree strongly")to 5 ("agree strongly").In order to analyze this data,it must undergo a(n)____.

Accepted Answer

A) item inversion 
B) item reversal 
C) scale reversal 
D) scale inversion 
A) item inversion 
B) item reversal 
C) scale reversal 
D) scale inversion

Question 13

The probability that a researcher will conclude there is a relationship when one does,in fact,exist is referred to as ____.

Accepted Answer

A) alpha 
B) alpha inverse 
C) statistical power 
D) a Type III outcome 
A) alpha 
B) alpha inverse 
C) statistical power 
D) a Type III outcome

Question 14

If the scores on a test are normally distributed,what percentage will be within one standard deviation of the mean?

Accepted Answer

A) 50 
B) 68 
C) 95 
D) 99 
A) 50 
B) 68 
C) 95 
D) 99

Question 15

The probability of a type I error is equal to ____.

Accepted Answer

A) alpha 
B) 1 - alpha 
C) 2 * alpha 
D) alpha / statistical power 
A) alpha 
B) 1 - alpha 
C) 2 * alpha 
D) alpha / statistical power

Question 16

Data _______________ includes developing and documenting a database that integrates all of your measures.

Accepted Answer

The answer of Data _______________ includes developing and documenting a...

Question 17

Data graphs are a type of ____ statistics.

Accepted Answer

A) causal 
B) descriptive 
C) inferential 
D) deductive 
A) causal 
B) descriptive 
C) inferential 
D) deductive

Question 18

A Type I error occurs when an effect exists,but it is not found in the research.

Accepted Answer

A) True 
 B)False

Question 19

What is the range of this set of scores?
10,5,5,5,4,6,7,2,10,7,10,2,6,7,6

Accepted Answer

A) 2 
B) 6 
C) 8 
D) 9 
A) 2 
B) 6 
C) 8 
D) 9

Question 20

In terms of signal and noise,a Type II error represents a ____.

Accepted Answer

A) false positive 
B) false negative 
C) true positive 
D) true negative 
A) false positive 
B) false negative 
C) true positive 
D) true negative

Random irrelevancies in a setting are most related to a ____.

What is the mean of this set of scores? 4,6,7,7,9,3,10,4,2,9

The ____ is the highest score minus the lowest score.

The ____ describes each variable in the data and indicates where and how it can be accessed.

Poor reliability of treatment implementation can result in increased risk of ____.

Beryl is conducting an observational study and has trained two raters to use the rating instrument.Both of the raters drop out just after the study has begun,so Beryl has to substitute in less well-trained raters.Beryl has increased the risk of ____.

List and describe the three steps typically involved in data analysis.

The ____ is the score at the middle,or 50th percentile,of a group of scores.

Which correlation is used when one variable is a continuous interval variable and the other is dichotomous?

If a researcher sets alpha at .05,the probability of a Type II error ____.

In terms of signal and noise,a Type I error represents a ____.

The probability that a researcher will conclude there is a relationship when one does,in fact,exist is referred to as ____.

If the scores on a test are normally distributed,what percentage will be within one standard deviation of the mean?

The probability of a type I error is equal to ____.

Data _______________ includes developing and documenting a database that integrates all of your measures.

Data graphs are a type of ____ statistics.

A Type I error occurs when an effect exists,but it is not found in the research.

What is the range of this set of scores? 10,5,5,5,4,6,7,2,10,7,10,2,6,7,6

In terms of signal and noise,a Type II error represents a ____.

Introduction

Ethics Foundations of Ethics in Research

Qualitative Approaches to Research

Sampling Foundations of Sampling

Introduction to Measurement

Scales, Tests, and Indexes

Survey Research

Introduction to Design

Experimental Design

Quasi-Experimental Design

Inferential Analysis

Communicating Research

Filters

Exam 11: Introduction to Data Analysis

Random irrelevancies in a setting are most related to a ____.

What is the mean of this set of scores? 4,6,7,7,9,3,10,4,2,9

The ____ is the highest score minus the lowest score.

The ____ describes each variable in the data and indicates where and how it can be accessed.

Poor reliability of treatment implementation can result in increased risk of ____.

Beryl is conducting an observational study and has trained two raters to use the rating instrument.Both of the raters drop out just after the study has begun,so Beryl has to substitute in less well-trained raters.Beryl has increased the risk of ____.

List and describe the three steps typically involved in data analysis.

The ____ is the score at the middle,or 50th percentile,of a group of scores.

Which correlation is used when one variable is a continuous interval variable and the other is dichotomous?

If a researcher sets alpha at .05,the probability of a Type II error ____.

In terms of signal and noise,a Type I error represents a ____.

The probability that a researcher will conclude there is a relationship when one does,in fact,exist is referred to as ____.

If the scores on a test are normally distributed,what percentage will be within one standard deviation of the mean?

The probability of a type I error is equal to ____.

Data _______________ includes developing and documenting a database that integrates all of your measures.

Data graphs are a type of ____ statistics.

A Type I error occurs when an effect exists,but it is not found in the research.

What is the range of this set of scores? 10,5,5,5,4,6,7,2,10,7,10,2,6,7,6

In terms of signal and noise,a Type II error represents a ____.

Introduction

Ethics Foundations of Ethics in Research

Qualitative Approaches to Research

Sampling Foundations of Sampling

Introduction to Measurement

Scales, Tests, and Indexes

Survey Research

Introduction to Design

Experimental Design

Quasi-Experimental Design

Inferential Analysis

Communicating Research

Filters