« previous next »

Author Question: A researcher found a correlation of .40 between aptitude test scores and school achievement. What ... (Read 129 times)

humphriesbr@me.com

  • Hero Member
  • *****
  • Posts: 550
on: Jun 20, 2018
A researcher found a correlation of .40 between aptitude test scores and school achievement. What proportion of the variance in school achievement can be attributed to variables other than aptitude?
 
  a. .16 c. .60
  b. .40 d. .84

Question 2

How does replication of experiments contribute to external validity?
 
  What will be an ideal response?


InfiniteSteez

  • Sr. Member
  • ****
  • Posts: 340
Reply #1 on: Jun 20, 2018
Answer to Question 1

D

Answer to Question 2

If experiments are repeated and the outcome is the same, one has more confidence in generalizing the findings to other subjects and settings.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

Did you know?

There are actually 60 minerals, 16 vitamins, 12 essential amino acids, and three essential fatty acids that your body needs every day.

Did you know?

No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.

Did you know?

There are more bacteria in your mouth than there are people in the world.

Did you know?

Critical care patients are twice as likely to receive the wrong medication. Of these errors, 20% are life-threatening, and 42% require additional life-sustaining treatments.

The skull of a wild boar found at Lan Lo Au, Hoi Ha Wan Marine Park, Hong Kong The skull of a wild boar found at Lan Lo Au, Hoi Ha Wan Marine Park, Hong Kong
Blood glucose measurement. A postprandial test may be self-administered. (a) A lance pierces the ski Blood glucose measurement. A postprandial test may be self-administered. (a) A lance pierces the ski
Secondary School Enrollment Worldwide Secondary School Enrollment Worldwide
Organic Test banks Carey 8th Edition Organic Test banks Carey 8th Edition
Phalen’s test Phalen’s test
Data for a Hypothetical Paternity Test Using 13 CODIS Genes Data for a Hypothetical Paternity Test Using 13 CODIS Genes
Video: Apicomplexan life cycle Animation

For a complete list of videos, visit our video library