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Questions and Answers
In the RAND Health Insurance Experiment (HIE), how many families were randomly assigned to different insurance coverage plans?
In the RAND Health Insurance Experiment (HIE), how many families were randomly assigned to different insurance coverage plans?
- 1,000 families
- 3,000 families
- 2,000 families (correct)
- 4,000 families
What was the duration of the STAR experiment in Tennessee?
What was the duration of the STAR experiment in Tennessee?
- Two years
- Five years
- Four years (correct)
- Three years
What was the purpose of the modified tablet treatment group in Carter et al.'s study?
What was the purpose of the modified tablet treatment group in Carter et al.'s study?
- To restrict laptop usage
- To examine the impact of tablet usage on academic performance (correct)
- To evaluate study habits
- To compare tablet and laptop performance
Which of the following was NOT an insurance coverage plan in the RAND Health Insurance Experiment?
Which of the following was NOT an insurance coverage plan in the RAND Health Insurance Experiment?
What was the role of part-time teacher’s aides in the STAR experiment in Tennessee?
What was the role of part-time teacher’s aides in the STAR experiment in Tennessee?
Which experiment cost about $12 million and involved a cohort of kindergartners?
Which experiment cost about $12 million and involved a cohort of kindergartners?
What differentiated the treatment group from the 'modified tablet' group in Carter et al.'s study?
What differentiated the treatment group from the 'modified tablet' group in Carter et al.'s study?
What was unique about the class sizes in the STAR experiment?
What was unique about the class sizes in the STAR experiment?
What does the identification problem in causal analysis aim to measure?
What does the identification problem in causal analysis aim to measure?
How does random assignment help address the selection bias?
How does random assignment help address the selection bias?
In a randomized experiment, how is the treatment assignment determined?
In a randomized experiment, how is the treatment assignment determined?
What is the purpose of using randomization in experimental design?
What is the purpose of using randomization in experimental design?
How does random assignment impact the causal inference process in experiments?
How does random assignment impact the causal inference process in experiments?
What is the primary goal of randomization in a causal analysis?
What is the primary goal of randomization in a causal analysis?
Why is random assignment considered essential in experimental design?
Why is random assignment considered essential in experimental design?
How does random assignment affect the interpretation of cause-and-effect relationships?
How does random assignment affect the interpretation of cause-and-effect relationships?
What does random assignment in a randomized experiment make independent of potential outcomes?
What does random assignment in a randomized experiment make independent of potential outcomes?
In a randomized experiment, what does the independence between potential outcomes and treatment imply?
In a randomized experiment, what does the independence between potential outcomes and treatment imply?
What does AT T represent in the context of a randomized experiment?
What does AT T represent in the context of a randomized experiment?
What problem does random assignment solve in experimental design?
What problem does random assignment solve in experimental design?
What does E[Y1i − Y0i |Di = 1] represent in a randomized experiment?
What does E[Y1i − Y0i |Di = 1] represent in a randomized experiment?
In regression analysis of experiments, what is assumed to be constant?
In regression analysis of experiments, what is assumed to be constant?
What is meant by AT E in the context of a randomized experiment?
What is meant by AT E in the context of a randomized experiment?
How does randomization make treatment and no-treatment groups comparable in pre-treatment characteristics?
How does randomization make treatment and no-treatment groups comparable in pre-treatment characteristics?
What is a common question to ask about a randomized experiment's design?
What is a common question to ask about a randomized experiment's design?
What is a key aspect to test when examining the credibility of an experimental design?
What is a key aspect to test when examining the credibility of an experimental design?
Which characteristic of highly disciplined students contributes to the absence of compliance issues in the study?
Which characteristic of highly disciplined students contributes to the absence of compliance issues in the study?
What impact does the ability to access electronic devices during class have on students' learning outcomes?
What impact does the ability to access electronic devices during class have on students' learning outcomes?
In a randomized experiment, what does it mean if pre-treatment outcomes and covariates are balanced across treatment groups?
In a randomized experiment, what does it mean if pre-treatment outcomes and covariates are balanced across treatment groups?
What aspect makes the United States Military Academy an ideal setting for a randomized trial to evaluate online teaching?
What aspect makes the United States Military Academy an ideal setting for a randomized trial to evaluate online teaching?
What did Kofoed et al. do to control for instructor effects in their experiment on online learning?
What did Kofoed et al. do to control for instructor effects in their experiment on online learning?
What is the main goal of setting up a randomized trial for evaluating online teaching at the United States Military Academy?
What is the main goal of setting up a randomized trial for evaluating online teaching at the United States Military Academy?
What does the regression model presented in the text help to estimate?
What does the regression model presented in the text help to estimate?
In the context of the classical linear regression model, what does mean independence of errors imply?
In the context of the classical linear regression model, what does mean independence of errors imply?
What is the role of randomization in ensuring mean independence in the classical linear regression model?
What is the role of randomization in ensuring mean independence in the classical linear regression model?
Why is controlling for other covariates X not needed in the randomization setup described in the text?
Why is controlling for other covariates X not needed in the randomization setup described in the text?
What does the selection bias in experiments amount to according to the text?
What does the selection bias in experiments amount to according to the text?
In the context of regression analysis of experiments, what does E[Yi |Di = 1] − E[Yi |Di = 0] represent?
In the context of regression analysis of experiments, what does E[Yi |Di = 1] − E[Yi |Di = 0] represent?
What is the main implication of the constant-effect assumption in evaluating treatment effects?
What is the main implication of the constant-effect assumption in evaluating treatment effects?
Based on the text, why does OLS provide unbiased estimates for the treatment effect τ?
Based on the text, why does OLS provide unbiased estimates for the treatment effect τ?
What is the importance of testing for statistically significant differences in pre-treatment outcomes and other covariates across treatment groups in a randomized experiment?
What is the importance of testing for statistically significant differences in pre-treatment outcomes and other covariates across treatment groups in a randomized experiment?
Why is the United States Military Academy at West Point considered an ideal setting for a randomized trial to evaluate online teaching?
Why is the United States Military Academy at West Point considered an ideal setting for a randomized trial to evaluate online teaching?
What are the potential positive and negative effects of using electronic devices on students' learning outcomes?
What are the potential positive and negative effects of using electronic devices on students' learning outcomes?
How did Kofoed et al. control for instructor effects in their experiment on online learning?
How did Kofoed et al. control for instructor effects in their experiment on online learning?
What does randomized assignment in a randomized experiment ensure the independence of?
What does randomized assignment in a randomized experiment ensure the independence of?
What is the main implication of the constant-effect assumption in evaluating treatment effects?
What is the main implication of the constant-effect assumption in evaluating treatment effects?
Why is random assignment considered essential in experimental design?
Why is random assignment considered essential in experimental design?
What differentiated the treatment group from the 'modified tablet' group in Carter et al.'s study on the impact of electronic devices on learning outcomes?
What differentiated the treatment group from the 'modified tablet' group in Carter et al.'s study on the impact of electronic devices on learning outcomes?
What was the main difference between the treatment group and the 'modified tablet' group in Carter et al.'s study?
What was the main difference between the treatment group and the 'modified tablet' group in Carter et al.'s study?
What was the unique aspect of the experimental design in the RAND Health Insurance Experiment (HIE)?
What was the unique aspect of the experimental design in the RAND Health Insurance Experiment (HIE)?
In the STAR experiment in Tennessee, what were the three treatments that students were randomly assigned to?
In the STAR experiment in Tennessee, what were the three treatments that students were randomly assigned to?
What was the main goal of the STAR experiment in Tennessee?
What was the main goal of the STAR experiment in Tennessee?
What differentiated the treatment group from the 'modified tablet' group in Carter et al.'s study?
What differentiated the treatment group from the 'modified tablet' group in Carter et al.'s study?
What was the role of the part-time teacher’s aides in the STAR experiment in Tennessee?
What was the role of the part-time teacher’s aides in the STAR experiment in Tennessee?
What differentiated the treatment group from the 'modified tablet' group in the study by Carter et al. (2017)?
What differentiated the treatment group from the 'modified tablet' group in the study by Carter et al. (2017)?
What was the main implication of the constant-effect assumption in evaluating treatment effects?
What was the main implication of the constant-effect assumption in evaluating treatment effects?
Explain the identification problem in causal analysis as mentioned in the text.
Explain the identification problem in causal analysis as mentioned in the text.
How does random assignment help address the selection bias in experiments?
How does random assignment help address the selection bias in experiments?
What role does randomization play in ensuring mean independence in the classical linear regression model?
What role does randomization play in ensuring mean independence in the classical linear regression model?
How does random assignment affect the interpretation of cause-and-effect relationships in experiments?
How does random assignment affect the interpretation of cause-and-effect relationships in experiments?
What does random assignment in a randomized experiment make independent of potential outcomes?
What does random assignment in a randomized experiment make independent of potential outcomes?
What problem does random assignment solve in experimental design?
What problem does random assignment solve in experimental design?
Explain the impact of random assignment on the causal inference process in experiments.
Explain the impact of random assignment on the causal inference process in experiments.
What aspect of highly disciplined students contributes to the absence of compliance issues in a study?
What aspect of highly disciplined students contributes to the absence of compliance issues in a study?
What is the implication of random assignment in terms of potential outcomes and treatment?
What is the implication of random assignment in terms of potential outcomes and treatment?
What does AT T represent in the context of experimental design?
What does AT T represent in the context of experimental design?
How does random assignment solve the selection problem in experiments?
How does random assignment solve the selection problem in experiments?
What does E[Y1i - Y0i |Di = 1] represent in a randomized experiment?
What does E[Y1i - Y0i |Di = 1] represent in a randomized experiment?
In the context of regression analysis of experiments, what does Y1i - Y0i = τ being constant imply?
In the context of regression analysis of experiments, what does Y1i - Y0i = τ being constant imply?
What is the role of randomization in ensuring mean independence in the classical linear regression model?
What is the role of randomization in ensuring mean independence in the classical linear regression model?
How does randomization impact the interpretation of cause-and-effect relationships?
How does randomization impact the interpretation of cause-and-effect relationships?
What is the main goal of setting up a randomized trial for evaluating online teaching?
What is the main goal of setting up a randomized trial for evaluating online teaching?
Explain the role of randomization in ensuring mean independence in the classical linear regression model.
Explain the role of randomization in ensuring mean independence in the classical linear regression model.
What does the selection bias in experiments amount to according to the text?
What does the selection bias in experiments amount to according to the text?
How does random assignment help address the selection bias?
How does random assignment help address the selection bias?
What is the main implication of the constant-effect assumption in evaluating treatment effects?
What is the main implication of the constant-effect assumption in evaluating treatment effects?
What does the identification problem in causal analysis aim to measure?
What does the identification problem in causal analysis aim to measure?
What is the primary goal of randomization in a causal analysis?
What is the primary goal of randomization in a causal analysis?
What does E[Yi |Di = 1] − E[Yi |Di = 0] represent in the context of regression analysis of experiments?
What does E[Yi |Di = 1] − E[Yi |Di = 0] represent in the context of regression analysis of experiments?
Why is controlling for other covariates X not needed in the randomization setup described in the text?
Why is controlling for other covariates X not needed in the randomization setup described in the text?
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