Exam 1: Statistics and Samples

If we measured the mass of subjects and then placed these observed individuals into groups with the labels "light," "medium," and "heavy," what type of variable have we created for our sample?

(Multiple Choice)

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Question 21

Which of the following is correct?

(Multiple Choice)

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Question 22

If we are conducting a study and seeking to determine the relationship between two variables, but a third variable complicates the situation and makes it hard to figure out the causal relationship, we term this third variable a(n) _____ variable.

(Multiple Choice)

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Question 23

Consider the figure showing the final position of balls dropped that had been aimed at the indentation. Which of the plots shows the situation best described as good accuracy, poor precision?

(Multiple Choice)

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Question 24

Consider the figure showing the final position of balls dropped that had been aimed at the indentation. Which of the plots shows the situation best described as poor accuracy, good precision?

(Multiple Choice)

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Question 25

In studies, subjects are randomly assigned to treatment groups, whereas in studies, subjects are assigned to treatment groups for reasons beyond the control of the researchers.

(Multiple Choice)

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Question 26

If we administered psychological tests to a set of students and then placed these subjects into groups with the labels "anxious," "calm," "angry," and "control," what type of variable have we created for our sample?

(Multiple Choice)

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Question 27

When we look at the association between two variables, we term the one that predicts or influences the other the _ variable, whereas the one being influenced is termed the _ variable.

(Multiple Choice)

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Question 28

Sampling error is defined as differences between the estimate and the estimated parameter due to which of the following?

(Multiple Choice)

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Question 29

When a researcher takes a sample of individuals because they are easily available, rather than choosing randomly, we say they have done which of the following?

(Multiple Choice)

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Question 30

The measurements of one or more variables made on a sample of individuals is called which of the following?

(Multiple Choice)

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Question 31

Other terms for a "sampling unit" include all of the following, except one.

(Multiple Choice)

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Question 32

Which of the following is a major benefit of experimental studies over observational ones?

(Multiple Choice)

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Question 33

Characteristics or measurements that differ from individual to individual are called which of the following?

(Multiple Choice)

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Question 34

When we look at a sample, the number of times a specific measurement is observed is called the _____ of the observation.

(Multiple Choice)

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Question 35

When a study recruits people at large and some types of people sign up more because of a systematic difference in their behavior, our sample may be prone to which of the following types of bias?

(Multiple Choice)

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Question 36

Showing 21 - 36 of 36

If we measured the mass of subjects and then placed these observed individuals into groups with the labels "light," "medium," and "heavy," what type of variable have we created for our sample?

Which of the following is correct?

If we are conducting a study and seeking to determine the relationship between two variables, but a third variable complicates the situation and makes it hard to figure out the causal relationship, we term this third variable a(n) _____ variable.

Consider the figure showing the final position of balls dropped that had been aimed at the indentation. Which of the plots shows the situation best described as good accuracy, poor precision?

Consider the figure showing the final position of balls dropped that had been aimed at the indentation. Which of the plots shows the situation best described as poor accuracy, good precision?

In studies, subjects are randomly assigned to treatment groups, whereas in studies, subjects are assigned to treatment groups for reasons beyond the control of the researchers.

If we administered psychological tests to a set of students and then placed these subjects into groups with the labels "anxious," "calm," "angry," and "control," what type of variable have we created for our sample?

When we look at the association between two variables, we term the one that predicts or influences the other the _ variable, whereas the one being influenced is termed the _ variable.

Sampling error is defined as differences between the estimate and the estimated parameter due to which of the following?

When a researcher takes a sample of individuals because they are easily available, rather than choosing randomly, we say they have done which of the following?

The measurements of one or more variables made on a sample of individuals is called which of the following?

Other terms for a "sampling unit" include all of the following, except one.

Which of the following is a major benefit of experimental studies over observational ones?

Characteristics or measurements that differ from individual to individual are called which of the following?

When we look at a sample, the number of times a specific measurement is observed is called the _____ of the observation.

When a study recruits people at large and some types of people sign up more because of a systematic difference in their behavior, our sample may be prone to which of the following types of bias?

Displaying Data

Describing Data

Estimating With Uncertainty

Probability

Hypothesis Testing

Analyzing Proportions

Fitting Probability Models to Frequency Data

Contingency Analysis: Associations Between

The Normal Distribution

Inference for a Normal Population

Comparing Two Means

Handling Violations of Assumptions

Designing Experiments

Comparing Means of More Than Two Groups

Correlation Between Numerical Variables

Regression

Multiple Explanatory Variables

Computer-Intensive Methods

Likelihood

Meta-Analysis: Combining Information From

Filters

Exam 1: Statistics and Samples

If we measured the mass of subjects and then placed these observed individuals into groups with the labels "light," "medium," and "heavy," what type of variable have we created for our sample?

Which of the following is correct?

If we are conducting a study and seeking to determine the relationship between two variables, but a third variable complicates the situation and makes it hard to figure out the causal relationship, we term this third variable a(n) _____ variable.

Consider the figure showing the final position of balls dropped that had been aimed at the indentation. Which of the plots shows the situation best described as good accuracy, poor precision?

Consider the figure showing the final position of balls dropped that had been aimed at the indentation. Which of the plots shows the situation best described as poor accuracy, good precision?

In ______ studies, subjects are randomly assigned to treatment groups, whereas in ______ studies, subjects are assigned to treatment groups for reasons beyond the control of the researchers.

If we administered psychological tests to a set of students and then placed these subjects into groups with the labels "anxious," "calm," "angry," and "control," what type of variable have we created for our sample?

When we look at the association between two variables, we term the one that predicts or influences the other the _____ variable, whereas the one being influenced is termed the _____ variable.

Sampling error is defined as differences between the estimate and the estimated parameter due to which of the following?

When a researcher takes a sample of individuals because they are easily available, rather than choosing randomly, we say they have done which of the following?

The measurements of one or more variables made on a sample of individuals is called which of the following?

Other terms for a "sampling unit" include all of the following, except one.

Which of the following is a major benefit of experimental studies over observational ones?

Characteristics or measurements that differ from individual to individual are called which of the following?

When we look at a sample, the number of times a specific measurement is observed is called the _____ of the observation.

When a study recruits people at large and some types of people sign up more because of a systematic difference in their behavior, our sample may be prone to which of the following types of bias?

Displaying Data

Describing Data

Estimating With Uncertainty

Probability

Hypothesis Testing

Analyzing Proportions

Fitting Probability Models to Frequency Data

Contingency Analysis: Associations Between

The Normal Distribution

Inference for a Normal Population

Comparing Two Means

Handling Violations of Assumptions

Designing Experiments

Comparing Means of More Than Two Groups

Correlation Between Numerical Variables

Regression

Multiple Explanatory Variables

Computer-Intensive Methods

Likelihood

Meta-Analysis: Combining Information From

Filters

In studies, subjects are randomly assigned to treatment groups, whereas in studies, subjects are assigned to treatment groups for reasons beyond the control of the researchers.

When we look at the association between two variables, we term the one that predicts or influences the other the _ variable, whereas the one being influenced is termed the _ variable.