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 50 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?

The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.

Did you know?

Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

Did you know?

Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.

Did you know?

The term pharmacology is derived from the Greek words pharmakon("claim, medicine, poison, or remedy") and logos ("study").

Did you know?

During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).

Weber's Test Weber's Test
Inspect the site for potential veins to use and palpate to further locate a vein and test the firmne Inspect the site for potential veins to use and palpate to further locate a vein and test the firmne
Piaget’s Test for Egocentric Perspectives on Children Piaget’s Test for Egocentric Perspectives on Children
Mantoux tuberculin skin test. Mantoux tuberculin skin test.
General Mathematics - Finding the Range of a Function General Mathematics - Finding the Range of a Function
Nancy borrowed $8000 from her grandfather to buy a car when she started college. The interest ... Nancy borrowed $8000 from her grandfather to buy a car when she started college. The interest ...
Video: Proteins

For a complete list of videos, visit our video library