Question 1

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

Question 2

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

Accepted Answer

A) True 
 B)False

Question 3

​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 4

​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 5

​The _______________ is the most commonly occurring value in a distribution.

Accepted Answer

The answer of ​The _______________ is the most commonly occurring...

Question 6

​The ____ is the spread of the scores around their average in a single sample.

Accepted Answer

A)  ​dispersion 
B)  ​standard deviation 
C)  ​variance 
D)  ​range 
A)  ​dispersion 
B)  ​standard deviation 
C)  ​variance 
D)  ​range

Question 7

​Identify and describe the major potential sources of noise in research.

Accepted Answer

There are several important sources of n

Question 8

​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 9

​Tests to detect statistically significant differences are part of _______________ statistics.

Accepted Answer

The answer of ​Tests to detect statistically significant differences are...

Question 10

​The written description of the data that describes each variable and indicates where and how it can be accessed is called the _______________.

Accepted Answer

The answer of ​The written description of the data that...

Question 11

​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 12

​Data preparation involves making graphs that show the distributions of the data.

Accepted Answer

A) True 
 B)False

Question 13

​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 14

​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

Question 15

​Conclusion validity is relevant whenever you are looking at relationships between variables.

Accepted Answer

A) True 
 B)False

Question 16

​Hypothesis testing is a function of inferential statistics.

Accepted Answer

A) True 
 B)False

Question 17

What is the mode of this set of scores? 4,4,7,3,6,10,2,7,3,10,4,8,2,2,2

Accepted Answer

A)  ​2 
B)  ​3 
C)  ​4 
D)  ​10 
A)  ​2 
B)  ​3 
C)  ​4 
D)  ​10

Question 18

​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 19

​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 20

Creating graphs and computing measures of central tendency are part of _______________ statistics.

Accepted Answer

The answer of Creating graphs and computing measures of central...

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

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

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

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

The _______________ is the most commonly occurring value in a distribution.

The ____ is the spread of the scores around their average in a single sample.

Identify and describe the major potential sources of noise in research.

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 ____.

Tests to detect statistically significant differences are part of _______________ statistics.

The written description of the data that describes each variable and indicates where and how it can be accessed is called the _______________.

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

Data preparation involves making graphs that show the distributions of the data.

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

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

Conclusion validity is relevant whenever you are looking at relationships between variables.

Hypothesis testing is a function of inferential statistics.

What is the mode of this set of scores? 4,4,7,3,6,10,2,7,3,10,4,8,2,2,2

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

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

Creating graphs and computing measures of central tendency are part of _______________ statistics.

Introduction

Ethics

Qualitative-Approaches-To-Research

Sampling

Introduction-To-Measurement

Scales-Texts-And-Indexes

Survey-Research

Introduction-To-Design

Experimental-Design

Quasi-Experimental-Design

Inferential-Analysis

Research-Communication

Filters

Exam 11: Introduction-To-Data-Analysis

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

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

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

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

​The _______________ is the most commonly occurring value in a distribution.

​The ____ is the spread of the scores around their average in a single sample.

​Identify and describe the major potential sources of noise in research.

​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 ____.

​Tests to detect statistically significant differences are part of _______________ statistics.

​The written description of the data that describes each variable and indicates where and how it can be accessed is called the _______________.

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

​Data preparation involves making graphs that show the distributions of the data.

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

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

​Conclusion validity is relevant whenever you are looking at relationships between variables.

​Hypothesis testing is a function of inferential statistics.

What is the mode of this set of scores? 4,4,7,3,6,10,2,7,3,10,4,8,2,2,2

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

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

Creating graphs and computing measures of central tendency are part of _______________ statistics.

Introduction

Ethics

Qualitative-Approaches-To-Research

Sampling

Introduction-To-Measurement

Scales-Texts-And-Indexes

Survey-Research

Introduction-To-Design

Experimental-Design

Quasi-Experimental-Design

Inferential-Analysis

Research-Communication

Filters

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

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

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

The _______________ is the most commonly occurring value in a distribution.

The ____ is the spread of the scores around their average in a single sample.

Identify and describe the major potential sources of noise in research.

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 ____.

Tests to detect statistically significant differences are part of _______________ statistics.

The written description of the data that describes each variable and indicates where and how it can be accessed is called the _______________.

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

Data preparation involves making graphs that show the distributions of the data.

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

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

Conclusion validity is relevant whenever you are looking at relationships between variables.

Hypothesis testing is a function of inferential statistics.

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

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