Exam 1: Introduction to Statistics

A researcher records the change in weight (gain or lost) during the first semester of college for each individual in a group of 25 freshmen, and calculates the average change in weight.The average is an example of a _______.

(Multiple Choice)

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Question 21

Using the average score to describe a sample is an example of inferential statistics.

(True/False)

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Question 22

A characteristic, usually a numerical value, that describes a sample is called a _______.

(Multiple Choice)

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Question 23

Which of the following is an example of a continuous variable?

(Multiple Choice)

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Question 24

A recent report concluded that children with siblings have better social skills than children who grow up as an only child.This is an example of an experimental study.

(True/False)

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Question 25

What is the value of Σ(X + 1) for the following scores? Scores: 2, 4, 7.

(Multiple Choice)

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Question 26

The average verbal SAT score for the entire class of entering freshmen is 530.However, if you select a sample of 20 freshmen and compute their average verbal SAT score you probably will not get exactly 530.What statistical concept is used to explain the natural difference that exists between a sample mean and the corresponding population mean?

(Multiple Choice)

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Question 27

You are instructed to subtract four points from each score, square the resulting value, and find the sum of the squared numbers.How would this set of instructions be expressed in summation notation?

(Multiple Choice)

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Question 28

For the following scores, Σ(X - 1) = 10.Scores: 1, 3, 7

(True/False)

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Question 29

Which of the following is an example of a discrete variable?

(Multiple Choice)

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Question 30

A discrete variable must be measured on a nominal or an ordinal scale.

(True/False)

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Question 31

For an experiment comparing two methods for teaching social skill training to autistic children, the independent variable is _ and the dependent variable is _.

(Multiple Choice)

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Question 32

What is the value of ΣX + 1 for the following scores? Scores: 1, 6, 3

(Multiple Choice)

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Question 33

The average score for a population is an example of a statistic.

(True/False)

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Question 34

A recent report concluded that college graduates have higher life-satisfaction scores than individuals who do not receive college degrees.For this study, graduating versus not graduating is an example of a quasi-independent variable.

(True/False)

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Question 35

If a researcher measures two individuals on a nominal scale, it is impossible to determine which individual has the larger score.

(True/False)

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Question 36

Determining a person's reaction time (in milliseconds) would involve measurement on a(n) _____ scale of measurement.

(Multiple Choice)

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Question 37

To determine how much difference there is between two individuals, you must use either an interval or a ratio scale of measurement.

(True/False)

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Question 38

For a research study comparing attitude scores for males and females, participant gender is an example of what kind of variable?

(Multiple Choice)

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Question 39

A researcher is interested in the average income for registered voters in the United States.The entire group of registered voters is an example of a population.

(True/False)

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Question 40

Showing 21 - 40 of 70

A researcher records the change in weight (gain or lost) during the first semester of college for each individual in a group of 25 freshmen, and calculates the average change in weight.The average is an example of a _______.

Using the average score to describe a sample is an example of inferential statistics.

A characteristic, usually a numerical value, that describes a sample is called a _______.

Which of the following is an example of a continuous variable?

A recent report concluded that children with siblings have better social skills than children who grow up as an only child.This is an example of an experimental study.

What is the value of Σ(X + 1) for the following scores? Scores: 2, 4, 7.

You are instructed to subtract four points from each score, square the resulting value, and find the sum of the squared numbers.How would this set of instructions be expressed in summation notation?

For the following scores, Σ(X - 1) = 10.Scores: 1, 3, 7

Which of the following is an example of a discrete variable?

A discrete variable must be measured on a nominal or an ordinal scale.

For an experiment comparing two methods for teaching social skill training to autistic children, the independent variable is _ and the dependent variable is _.

What is the value of ΣX + 1 for the following scores? Scores: 1, 6, 3

The average score for a population is an example of a statistic.

A recent report concluded that college graduates have higher life-satisfaction scores than individuals who do not receive college degrees.For this study, graduating versus not graduating is an example of a quasi-independent variable.

If a researcher measures two individuals on a nominal scale, it is impossible to determine which individual has the larger score.

Determining a person's reaction time (in milliseconds) would involve measurement on a(n) _____ scale of measurement.

To determine how much difference there is between two individuals, you must use either an interval or a ratio scale of measurement.

For a research study comparing attitude scores for males and females, participant gender is an example of what kind of variable?

A researcher is interested in the average income for registered voters in the United States.The entire group of registered voters is an example of a population.

Frequency Distributions

Central Tendency

Variability

Z-Scores

Probability

The Distribution of Sample Means

Introduction to Hypothesis Testing

Introduction to the T Statistic

The T Test for Two Independent Samples

The T Test for Two Related Samples

Introduction to Analysis of Variance

Repeated-Measures Anova

Two-Factor Analysis of Variance

Correlation

Introduction to Regression

Chi-Square Tests

The Binomial Test

Choosing the Right Statistics

Filters

Exam 1: Introduction to Statistics

A researcher records the change in weight (gain or lost) during the first semester of college for each individual in a group of 25 freshmen, and calculates the average change in weight.The average is an example of a _______.

Using the average score to describe a sample is an example of inferential statistics.

A characteristic, usually a numerical value, that describes a sample is called a _______.

Which of the following is an example of a continuous variable?

A recent report concluded that children with siblings have better social skills than children who grow up as an only child.This is an example of an experimental study.

What is the value of Σ(X + 1) for the following scores? Scores: 2, 4, 7.

You are instructed to subtract four points from each score, square the resulting value, and find the sum of the squared numbers.How would this set of instructions be expressed in summation notation?

For the following scores, Σ(X - 1) = 10.Scores: 1, 3, 7

Which of the following is an example of a discrete variable?

A discrete variable must be measured on a nominal or an ordinal scale.

For an experiment comparing two methods for teaching social skill training to autistic children, the independent variable is _______ and the dependent variable is _______.

What is the value of ΣX + 1 for the following scores? Scores: 1, 6, 3

The average score for a population is an example of a statistic.

A recent report concluded that college graduates have higher life-satisfaction scores than individuals who do not receive college degrees.For this study, graduating versus not graduating is an example of a quasi-independent variable.

If a researcher measures two individuals on a nominal scale, it is impossible to determine which individual has the larger score.

Determining a person's reaction time (in milliseconds) would involve measurement on a(n) _____ scale of measurement.

To determine how much difference there is between two individuals, you must use either an interval or a ratio scale of measurement.

For a research study comparing attitude scores for males and females, participant gender is an example of what kind of variable?

A researcher is interested in the average income for registered voters in the United States.The entire group of registered voters is an example of a population.

Frequency Distributions

Central Tendency

Variability

Z-Scores

Probability

The Distribution of Sample Means

Introduction to Hypothesis Testing

Introduction to the T Statistic

The T Test for Two Independent Samples

The T Test for Two Related Samples

Introduction to Analysis of Variance

Repeated-Measures Anova

Two-Factor Analysis of Variance

Correlation

Introduction to Regression

Chi-Square Tests

The Binomial Test

Choosing the Right Statistics

Filters

For an experiment comparing two methods for teaching social skill training to autistic children, the independent variable is _ and the dependent variable is _.