This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A general aptitude test correlates .45 with success in a particular college. To improve the ... (Read 108 times)

Hungry!

  • Hero Member
  • *****
  • Posts: 1,071
on: Jun 20, 2018
A general aptitude test correlates .45 with success in a particular college. To improve the predictive accuracy, the students are also given three other aptitude measures, all of which correlate very highly with one another and with the first test. What will be the likely effect of adding the scores from the three additional tests to the regression equation?
 
  a. Predictive accuracy will significantly improve.
  b. Only a very small improvement will occur.
  c. Predictive accuracy will decrease slightly.
  d. Cannot estimate from the information given.

Question 2

A scattergram is helpful because it illustrates the
 
  a. magnitude of the relationship between two variables.
  b. direction (+ or -) of a relationship between two variables.
  c. presence of a nonlinear relationship between two variables.
  d. All of these are true.
  e. a and b


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

yasmina

  • Sr. Member
  • ****
  • Posts: 323
Reply #1 on: Jun 20, 2018
Answer to Question 1

B

Answer to Question 2

D


Hungry!

  • Hero Member
  • *****
  • Posts: 1,071
Reply #2 on: Jun 20, 2018
Thank you


yasmina

  • Sr. Member
  • ****
  • Posts: 323
Reply #3 on: Jun 20, 2018
No problem :)


« previous next »
 

Did you know?

Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.

Did you know?

Many supplement containers do not even contain what their labels say. There are many documented reports of products containing much less, or more, that what is listed on their labels. They may also contain undisclosed prescription drugs and even contaminants.

Did you know?

Approximately 25% of all reported medication errors result from some kind of name confusion.

Did you know?

Vital signs (blood pressure, temperature, pulse rate, respiration rate) should be taken before any drug administration. Patients should be informed not to use tobacco or caffeine at least 30 minutes before their appointment.

Did you know?

Asthma cases in Americans are about 75% higher today than they were in 1980.

According to this Democratic cartoon, the only qualification of General Zachary Taylor, the Whig can According to this Democratic cartoon, the only qualification of General Zachary Taylor, the Whig can
National Results of the Scholastic Assessment Test (SAT) National Results of the Scholastic Assessment Test (SAT)
Photo of a sign taken at an emissions test facility. Photo of a sign taken at an emissions test facility.
a) Radioimmunosorbent test (RIST); (b) radioallergosorbent test (RAST). a) Radioimmunosorbent test (RIST); (b) radioallergosorbent test (RAST).
Two general classes of symmetry Two general classes of symmetry
Outgroup role in relative rate test Outgroup role in relative rate test
Video: Transcription—A molecular view

For a complete list of videos, visit our video library