« previous next »

Author Question: Cohen's d expresses the magnitude of the difference between groups in _____ units. a. standard ... (Read 68 times)

Sufayan.ah

  • Hero Member
  • *****
  • Posts: 512
on: Jun 19, 2018
Cohen's d expresses the magnitude of the difference between groups in _____ units.
 
  a. standard deviation c. standard score
  b. raw score d. standard error

Question 2

Why is it important to know the size of the effect in an experiment? It is important because _____.
 
  a. it is possible to achieve statistical significance with very small differences when n is big
  b. statistically significant differences do not necessarily have practical significance
  c. both a and b
  d. none of these


pikon

  • Sr. Member
  • ****
  • Posts: 361
Reply #1 on: Jun 19, 2018
Answer to Question 1

A
d is a measure of the number of standard deviation units that separate the group means.

Answer to Question 2

C
The larger the n, the smaller the difference between means that is required in order to be statistically significant.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

Sufayan.ah

  • Hero Member
  • *****
  • Posts: 512
Reply #2 on: Jun 19, 2018
Thank you


pikon

  • Sr. Member
  • ****
  • Posts: 361
Reply #3 on: Jun 19, 2018
No problem :)


« previous next »
 

Did you know?

When taking monoamine oxidase inhibitors, people should avoid a variety of foods, which include alcoholic beverages, bean curd, broad (fava) bean pods, cheese, fish, ginseng, protein extracts, meat, sauerkraut, shrimp paste, soups, and yeast.

Did you know?

Anti-aging claims should not ever be believed. There is no supplement, medication, or any other substance that has been proven to slow or stop the aging process.

Did you know?

A recent study has found that following a diet rich in berries may slow down the aging process of the brain. This diet apparently helps to keep dopamine levels much higher than are seen in normal individuals who do not eat berries as a regular part of their diet as they enter their later years.

Did you know?

Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

Did you know?

Excessive alcohol use costs the country approximately $235 billion every year.

Clinical decision making for groups Clinical decision making for groups
The most polygynous primates live in groups with many more females than males. The most polygynous primates live in groups with many more females than males.
How our participation in social groups shapes our self-concept is a focus of symbolic ... How our participation in social groups shapes our self-concept is a focus of symbolic ...
A Listing of Repeat Units for 10 of the More Common Polymeric Materials A Listing of Repeat Units for 10 of the More Common Polymeric Materials
Different Rickettsial Groups, Diseases, and Geographical Locations Different Rickettsial Groups, Diseases, and Geographical Locations
Some Standard Shapes of Greek Vessels Some Standard Shapes of Greek Vessels
Video: Osmosis - Isotonic, Hypotonic, and Hypertonic​ Solutions

For a complete list of videos, visit our video library