« previous next »

Author Question: A study of a new reading training program achieved, with 100 subjects, the following results: ... (Read 72 times)

Melani1276

  • Hero Member
  • *****
  • Posts: 516
on: Jun 20, 2018
A study of a new reading training program achieved, with 100 subjects, the following results: experimental group mean = 30.25 (SD = 3.28) and control group mean = 25.14 (SD = 4.75). However, a second study with 541 subjects found experimental group mean = 28.81 (SD = 2.56) and control group mean = 26.62 (SD 2.01).
 
  a. The first study had a higher effect size.
  b. The second study had a higher effect size.
  c. Both studies had similar effect sizes.
  d. None of these are true.

Question 2

The z-scores for X and Y variables are exactly the same except they have opposite signs. The coefficient of determination is
 
  a. 0.00.
  b. -1.00.
  c. +1.00.
  d. not possible to compute with this information.


maaaaaaaaaa

  • Sr. Member
  • ****
  • Posts: 336
Reply #1 on: Jun 20, 2018
Answer to Question 1

C

Answer to Question 2

C


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.

Did you know?

GI conditions that will keep you out of the U.S. armed services include ulcers, varices, fistulas, esophagitis, gastritis, congenital abnormalities, inflammatory bowel disease, enteritis, colitis, proctitis, duodenal diverticula, malabsorption syndromes, hepatitis, cirrhosis, cysts, abscesses, pancreatitis, polyps, certain hemorrhoids, splenomegaly, hernias, recent abdominal surgery, GI bypass or stomach stapling, and artificial GI openings.

Did you know?

The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

Did you know?

Aspirin may benefit 11 different cancers, including those of the colon, pancreas, lungs, prostate, breasts, and leukemia.

Did you know?

The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.

Summary of greenhouse experimental design and results Summary of greenhouse experimental design and results
Field research on free-living primates allows primatologists to study patterns of behavior in the se Field research on free-living primates allows primatologists to study patterns of behavior in the se
Two behavioral paradigms that are used extensively in the study of the neural mechanisms of ... Two behavioral paradigms that are used extensively in the study of the neural mechanisms of ...
The National School Lunch Program The National School Lunch Program
Complement Activation and Results Complement Activation and Results
Reading a dideoxy DNA sequencing gel Reading a dideoxy DNA sequencing gel
Video: Pasteur's Experiment

For a complete list of videos, visit our video library