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What is the most important aspect to include in a study in order to obtain a sample that is truly representative of the population? Ensuring the data are categorical O A very large sample size O Ensuring the data are quantitative Randomization OUsing an experiment instead of an observational study

What is the most important aspect to include in a study in order to obtain a sample that is truly representative of the population? Ensuring the data are categorical O A very large sample size O Ensuring the data are quantitative Randomization OUsing an experiment instead of an observational study

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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What is the most important aspect to include in a study in order to obtain a sample that is truly representative of the population? Ensuring the data are categorical O A very large sample size O Ensuring the data are quantitative Randomization OUsing an experiment instead of an observational study Question 10 LO Details What is the key difference between an experiment and an observational study? Only observational studies require randomization. We can only perform observational studies on people. Only experiments impose a treatment to the subjects. Only experiments can have an explanatory and response variable. There is no difference. Experiments and observational studies are two terms that mean the same thing.
Transcribed Image Text:What is the most important aspect to include in a study in order to obtain a sample that is truly representative of the population? Ensuring the data are categorical O A very large sample size O Ensuring the data are quantitative Randomization OUsing an experiment instead of an observational study Question 10 LO Details What is the key difference between an experiment and an observational study? Only observational studies require randomization. We can only perform observational studies on people. Only experiments impose a treatment to the subjects. Only experiments can have an explanatory and response variable. There is no difference. Experiments and observational studies are two terms that mean the same thing.
What is a lurking variable? O A scary variable. O A variable that scientists ignore because of ethical issues in the study. A variable that we aren't measuring or controlling, but may influence the outcome of a response variable, and possibly the explanatory variable. O A variable that we are controlling in an experiment so that it doesn't have an effect on our response variable. O A variable that may result in the placebo effect.
Transcribed Image Text:What is a lurking variable? O A scary variable. O A variable that scientists ignore because of ethical issues in the study. A variable that we aren't measuring or controlling, but may influence the outcome of a response variable, and possibly the explanatory variable. O A variable that we are controlling in an experiment so that it doesn't have an effect on our response variable. O A variable that may result in the placebo effect.
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