A researcher wants to know if a treatment significantly changes the wellbeing of someone with depression. The average person with depression scores a 7.2 on a wellbeing scale with a SD of 1.4 points. The researcher administers the treatment to 25 clients for a month and finds their wellbeing at the end to be 7.7. Assume an alpha level of .05. Imagine we know that a treatment actually does have an effect but the researcher concludes there is no effect. 1a. How could we decrease this probability?Imagine we know that a treatment does not actually have an effect but the researcher concludes there is an effect.2a. What error has the researcher made?

1a. To decrease the probability that the researcher concludes there is no effect when there actually…

Answered: researcher wants to know if a treatment…

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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A researcher wants to know if a treatment significantly changes the wellbeing of someone with depression. The average person with depression scores a 7.2 on a wellbeing scale with a SD of 1.4 points. The researcher administers the treatment to 25 clients for a month and finds their wellbeing at the end to be 7.7. Assume an alpha level of .05.

Imagine we know that a treatment actually does have an effect but the researcher concludes there is no effect. 1a. How could we decrease this probability?
Imagine we know that a treatment does not actually have an effect but the researcher concludes there is an effect.
2a. What error has the researcher made?

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