« previous next »

Author Question: A study of a new reading training program achieved, with 100 subjects, the following results: ... (Read 53 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?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Did you know?

Studies show that systolic blood pressure can be significantly lowered by taking statins. In fact, the higher the patient's baseline blood pressure, the greater the effect of statins on his or her blood pressure.

Did you know?

The FDA recognizes 118 routes of administration.

Did you know?

There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).

Did you know?

Though methadone is often used to treat dependency on other opioids, the drug itself can be abused. Crushing or snorting methadone can achieve the opiate "rush" desired by addicts. Improper use such as these can lead to a dangerous dependency on methadone. This drug now accounts for nearly one-third of opioid-related deaths.

Pneumothorax. Figure illustrates how puncture of thoracic wall and tearing of pleural membrane allow Pneumothorax. Figure illustrates how puncture of thoracic wall and tearing of pleural membrane allow
Sample Exercise Prescription for Weight Training: Intermediate Sample Exercise Prescription for Weight Training: Intermediate
Example of an employee setup screen in a computerized payroll program. Example of an employee setup screen in a computerized payroll program.
Carbon dioxide. This molecule exhibits a nonpolar bond and results in a linear and symmetrical ... Carbon dioxide. This molecule exhibits a nonpolar bond and results in a linear and symmetrical ...
Study of human diseases Study of human diseases
Cub and pup grade 1 reading Cub and pup grade 1 reading
Video: Baroreceptor Reflex

For a complete list of videos, visit our video library