100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Previously searched by you
Previously searched by you
logo
PSY230 stats (exam 3 conceptual) NAU Dr. Weber Questions With Correct Solutions, Already Passed!! CA$11.47   Add to cart
Quickly navigate to
Preview
  2.  
  3. PSY230 Stats
  4.  
  5. PSY230 stats

Exam (elaborations)

PSY230 stats (exam 3 conceptual) NAU Dr. Weber Questions With Correct Solutions, Already Passed!!
 18 views  0 purchase
  • Course
  • PSY230 stats
  • Institution
  • PSY230 Stats

Mathematically, the power of an experiment is - the probability that the results of an experiment will allow rejection of the null hypothesis if the independent variable has a real effect. As the power of an experiment increases, the probability of making a Type II error ___________________. - d...

[Show more]

Preview 2 out of 9  pages

Document information

  • August 17, 2024
  • 9
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

Subjects

  • psy230 stats exam 3 conceptual nau dr weber

Written for

  • PSY230 stats
  • PSY230 stats

Seller

avatar-seller
ACADEMICMATERIALS

Reviews received

Content preview

PSY230 stats (exam 3 conceptual) NAU
Dr. Weber
Mathematically, the power of an experiment is - the probability that the results of an experiment
will allow rejection of the null hypothesis if the independent variable has a real effect.



As the power of an experiment increases, the probability of making a Type II error
___________________. - decreases



The hypothesis that claims the difference in results between conditions is due to the independent
variable is the - alternative hypothesis



This error is defined as a decision to retain the null hypothesis when the null hypothesis is false. -
Type II error



By making alpha more stringent, the possible outcomes which allow the rejection of H0 are _______. -
decreased




A Type I error is defined as - a decision to reject the null hypothesis when the null hypothesis is
true.



You conduct a sign test and find that the calculated probability is .067. You are using an alpha level of
.05two-tailed. Given this scenario, is the following statement true or false?



Based on the decision rule, you should reject the null hypothesis and conclude that the independent
variable has an effect on the dependent variable. - False



Is the following statement true or false?

, A result that is statistically significant can be assumed to be important as well. - False



Which of the following asserts that the independent variable does not affect the dependent variable? -
The null hypothesis.



Match the type of test (one- vs. two-tailed) with the hypothesis for which it is indicated.



Question:

The new treatment will decrease depression scores.



The new treatment will have an effect on depression scores - B. One-tailed test



A. Two-tailed test



Holding other factors constant, increasing the size of the real effect will increase power. - True



Holding other factors constant, increasing the sample size (N) will increase power. - True



The higher the power, the more sensitive the experiment is to detect a real effect of the independent
variable. - True



Which of the following will increase power in the the z and t tests you've learned? - Correct

Increasing the size of the real effect



Correct

Decreasing sample variability



Correct

Increasing sample size

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller ACADEMICMATERIALS. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for CA$11.47. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

79271 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
CA$11.47
  • (0)
  Add to cart