Question 1

The average IQ of the population is a ___________.

Accepted Answer

A)  statistic 
B)  parameter 
C)  extraneous variable 
D)  inferential statistic 
A)  statistic 
B)  parameter 
C)  extraneous variable 
D)  inferential statistic

Question 2

A team of scientists is examining the habitat of a rare species of fish. They want to know under what temperatures they survive, and the amount of food they take in. Explain: 1.) why they draw a sample of fish, and 2.) how they might answer the questions with a sample.

Accepted Answer

The research team uses a sample because

Question 3

It is generally very difficult for statistics to be used to manipulate the audience

Accepted Answer

A) True 
 B)False

Question 4

Context generally does not impact the use of statistics; the use of statistics does not depend on the goal of the author

Accepted Answer

A) True 
 B)False

Question 5

Researchers manipulate the extraneous variable in order to see if it effects the dependent variable

Accepted Answer

A) True 
 B)False

Question 6

Jennifer reviewed the literature on research related to patients with anxiety disorders in clinical psychology. She designs a study assigning some patients to three different treatments and a control group with no treatment. She then measures anxiety symptoms 2 months after the treatment.
Which of the following would be a hypothesis for this study?

Accepted Answer

A)  Treatment can reduce anxiety symptoms 
B)  Anxiety symptoms are caused by prenatal stress during pregnancy. 
C)  Treatment explain why anxiety disorders occur in some but not other individuals 
D)  All of the above are hypothesis appropriate for the study. 
A)  Treatment can reduce anxiety symptoms 
B)  Anxiety symptoms are caused by prenatal stress during pregnancy. 
C)  Treatment explain why anxiety disorders occur in some but not other individuals 
D)  All of the above are hypothesis appropriate for the study.

Question 7

Given the role of chance errors, what is a general rule about sample size in statistics? Why does this rule make sense?

Accepted Answer

Larger samples tend to be preferred. Thi

Question 8

In statistics, the "population" refers to all members of a target group of interest

Accepted Answer

A) True 
 B)False

Question 9

Which of the following describes the quality of a representative sample is?

Accepted Answer

A)  It has characteristics that are similar to the population 
B)  The data from the sample can likely be generalized to a the population 
C)  It can allow for reliable conclusions to be drawn 
D)  All of the above are true descriptions of representative samples. 
A)  It has characteristics that are similar to the population 
B)  The data from the sample can likely be generalized to a the population 
C)  It can allow for reliable conclusions to be drawn 
D)  All of the above are true descriptions of representative samples.

Question 10

Jennifer reviewed the literature on research related to patients with anxiety disorders in clinical psychology. She designs a study assigning some patients to three different treatments and a control group with no treatment. She then measures anxiety symptoms 2 months after the treatment.
Anxiety symptoms 2 months later is the…

Accepted Answer

A)  Independent variable 
B)  Dependent variable 
C)  Extraneous variable 
D)  Control variable 
A)  Independent variable 
B)  Dependent variable 
C)  Extraneous variable 
D)  Control variable

Question 11

A researcher is examining the effects of the parental presence during an experiment and children's ability to solve problems independently. In this case, parental presence is the dependent variable

Accepted Answer

A) True 
 B)False

Question 12

a typical observation is an observation from a dataset that generalizes to the population of interest

Accepted Answer

A) True 
 B)False

Question 13

Why do we need descriptive statistics?

Accepted Answer

A)  Descriptive statistics summarize data and tell us about various characteristics of a dataset. 
B)  Descriptive statistics allow us to generalize to the population 
C)  Descriptive statistics is critical for us to compare samples to populations. 
D)  Descriptive statistics are used to characterize and estimate the true population parameter based on the dataset. 
A)  Descriptive statistics summarize data and tell us about various characteristics of a dataset. 
B)  Descriptive statistics allow us to generalize to the population 
C)  Descriptive statistics is critical for us to compare samples to populations. 
D)  Descriptive statistics are used to characterize and estimate the true population parameter based on the dataset.

Question 14

Inferential statistics are used to make predictions about a population based on a sample.

Accepted Answer

A) True 
 B)False

Question 15

Generally, when designing an experiment, a researcher tests the _________________, by examining whether the ____________ causes the ___________________.

Accepted Answer

A)  Target variable; dependent variable; independent variable 
B)  Hypothesis; independent variable; dependent variable 
C)  independent variable; dependent variable; chance error 
D)  parameter; statistic; dependent variable 
A)  Target variable; dependent variable; independent variable 
B)  Hypothesis; independent variable; dependent variable 
C)  independent variable; dependent variable; chance error 
D)  parameter; statistic; dependent variable

Question 16

In an experiment with a repeated measures design, each participant experiences one of the possible different conditions.

Accepted Answer

A) True 
 B)False

Question 17

Jennifer reviewed the literature on research related to patients with anxiety disorders in clinical psychology. She designs a study assigning some patients to three different treatments and a control group with no treatment. She then measures anxiety symptoms 2 months after the treatment.
Treatment in this case is the…

Accepted Answer

A)  Independent variable 
B)  Dependent variable 
C)  Extraneous variable 
D)  Control variable 
A)  Independent variable 
B)  Dependent variable 
C)  Extraneous variable 
D)  Control variable

Question 18

Inferential statistics allows researchers to draw conclusions about a ______________ based on a ______________.

Accepted Answer

A)  sample; population 
B)  Population; typical observation 
C)  Population; sample 
D)  Sample; dataset 
A)  sample; population 
B)  Population; typical observation 
C)  Population; sample 
D)  Sample; dataset

Question 19

A non-representative sample generally means your sample statistics do not accurate predict and generalize to the actual population parameter

Accepted Answer

A) True 
 B)False

Question 20

Which of the following is not a ratio?

Accepted Answer

A)  The number of honeycrisp apples a farmer grew out of all the apples that were harvested from his farm 
B)  The number of boys in a choir group 
C)  The proportion of patients at a veterinarian that were cats 
D)  The amount of words in a paragraph that are nouns compared to verbs. 
A)  The number of honeycrisp apples a farmer grew out of all the apples that were harvested from his farm 
B)  The number of boys in a choir group 
C)  The proportion of patients at a veterinarian that were cats 
D)  The amount of words in a paragraph that are nouns compared to verbs.

The average IQ of the population is a ___________.

A team of scientists is examining the habitat of a rare species of fish. They want to know under what temperatures they survive, and the amount of food they take in. Explain: 1.) why they draw a sample of fish, and 2.) how they might answer the questions with a sample.

It is generally very difficult for statistics to be used to manipulate the audience

Context generally does not impact the use of statistics; the use of statistics does not depend on the goal of the author

Researchers manipulate the extraneous variable in order to see if it effects the dependent variable

Given the role of chance errors, what is a general rule about sample size in statistics? Why does this rule make sense?

In statistics, the "population" refers to all members of a target group of interest

Which of the following describes the quality of a representative sample is?

A researcher is examining the effects of the parental presence during an experiment and children's ability to solve problems independently. In this case, parental presence is the dependent variable

a typical observation is an observation from a dataset that generalizes to the population of interest

Why do we need descriptive statistics?

Inferential statistics are used to make predictions about a population based on a sample.

Generally, when designing an experiment, a researcher tests the _, by examining whether the causes the ___.

In an experiment with a repeated measures design, each participant experiences one of the possible different conditions.

Inferential statistics allows researchers to draw conclusions about a based on a .

A non-representative sample generally means your sample statistics do not accurate predict and generalize to the actual population parameter

Which of the following is not a ratio?

Types of Data

A Picture Is Worth a Thousand Words: Creating and Interpreting Graphics

Measures of Central Tendency: Whats so Average About the Mean

Variability: the Law of Life

Where Am I Normal Distributions and Standard Scores

Basic Probability Theory

The Central Limit Theorem and Hypothesis Testing

The Z-Test

The T-Test

Analysis of Variance

Confidence Intervals and Effect Size: Building a Better Mousetrap

Correlation and Regression: Are We Related

The Chi-Square Test

Non-Parametric Tests

Which Test Should I Use and Why

Filters

Exam 1: Introduction: Statistics--Who Needs Them

The average IQ of the population is a ___________.

A team of scientists is examining the habitat of a rare species of fish. They want to know under what temperatures they survive, and the amount of food they take in. Explain: 1.) why they draw a sample of fish, and 2.) how they might answer the questions with a sample.

It is generally very difficult for statistics to be used to manipulate the audience

Context generally does not impact the use of statistics; the use of statistics does not depend on the goal of the author

Researchers manipulate the extraneous variable in order to see if it effects the dependent variable

Given the role of chance errors, what is a general rule about sample size in statistics? Why does this rule make sense?

In statistics, the "population" refers to all members of a target group of interest

Which of the following describes the quality of a representative sample is?

A researcher is examining the effects of the parental presence during an experiment and children's ability to solve problems independently. In this case, parental presence is the dependent variable

a typical observation is an observation from a dataset that generalizes to the population of interest

Why do we need descriptive statistics?

Inferential statistics are used to make predictions about a population based on a sample.

Generally, when designing an experiment, a researcher tests the _________________, by examining whether the ____________ causes the ___________________.

In an experiment with a repeated measures design, each participant experiences one of the possible different conditions.

Inferential statistics allows researchers to draw conclusions about a ______________ based on a ______________.

A non-representative sample generally means your sample statistics do not accurate predict and generalize to the actual population parameter

Which of the following is not a ratio?

Types of Data

A Picture Is Worth a Thousand Words: Creating and Interpreting Graphics

Measures of Central Tendency: Whats so Average About the Mean

Variability: the Law of Life

Where Am I Normal Distributions and Standard Scores

Basic Probability Theory

The Central Limit Theorem and Hypothesis Testing

The Z-Test

The T-Test

Analysis of Variance

Confidence Intervals and Effect Size: Building a Better Mousetrap

Correlation and Regression: Are We Related

The Chi-Square Test

Non-Parametric Tests

Which Test Should I Use and Why

Filters

Generally, when designing an experiment, a researcher tests the _, by examining whether the causes the ___.

Inferential statistics allows researchers to draw conclusions about a based on a .