Answered: Think like a scientist A researcher… | bartleby

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.1: Measures Of Center

Problem 21HP

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Think like a scientist
A researcher finds that participants exposed to high, medium, or low levels of stress (as manipulated by the amount of
time they have to complete a task) differ in their ratings of personal anxiety. Why would you not want to use t-tests to
compare the high and medium conditions, the high and low conditions, and the medium and low conditions? What
would you use instead?
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Imagine you are a social psychologist. Create an experiment that would use a t-test to investigate inequality or discrimination in our society. Make sure to identify and operationalize your independent and dependent variables. How does your experiment investigate this topic? What type of t-test would you be using and why?
A researcher finds that participants exposed to high, medium, or low levels of stress (as manipulated by the amount of time they have to complete a task) differ in their ratings of personal anxiety. Why would you not want to use t-tests to compare the high and medium conditions, the high and low conditions, and the medium and low conditions? What would you use instead?
Explain the difference between an observational study and an experiment. Give the description of a real-word example of each of these types of studies. Explain the purpose of blinding (single or double) in experimental studies using an example.
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Let’s say there is a psychologist who is investigating cultural differences in emotional expression among children. Three-year-olds from six distinct cultural backgrounds are subjected to the same minor stressor (their parent leaves the room), and their emotional reactions are rated on a scale from 0 to 20. What is ? Analysis: (Ex. Two factor, repeated measures, one factor) Ho:
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Also P- value
Also P-value
Consider the analogy between making a decision in a test and making a decision about the innocence or guilt of a defendant in a criminal trial. Explain what Type I and Type II errors are in the trial.

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