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

Author Question: In a randomized subjects pretest-posttest control group design, results might best be analyzed ... (Read 146 times)

tuffie

  • Hero Member
  • *****
  • Posts: 534
on: Jun 20, 2018
In a randomized subjects pretest-posttest control group design, results might best be analyzed through
 
  a. ANCOVA. c. change scores.
  b. ANOVA. d. t tests.

Question 2

A particular aptitude test shows a moderate correlation with college GPA. Some argue that many students who would not have succeeded in college anyway choose not to take the test or attempt college work, thus resulting in a form of self-preselection. What would be the effect on the validity index of the aptitude test if every high school senior took the test and attempted one year of college?
 
  a. Validity would increase. c. No effect on validity.
  b. Validity would decrease. d. Impossible to predict.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

juicepod

  • Sr. Member
  • ****
  • Posts: 310
Reply #1 on: Jun 20, 2018
Answer to Question 1

A

Answer to Question 2

A


tuffie

  • Member
  • Posts: 534
Reply 2 on: Jun 20, 2018
Thanks for the timely response, appreciate it

elyse44

  • Member
  • Posts: 319
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

It is important to read food labels and choose foods with low cholesterol and saturated trans fat. You should limit saturated fat to no higher than 6% of daily calories.

Did you know?

By definition, when a medication is administered intravenously, its bioavailability is 100%.

Did you know?

Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.

Did you know?

Over time, chronic hepatitis B virus and hepatitis C virus infections can progress to advanced liver disease, liver failure, and hepatocellular carcinoma. Unlike other forms, more than 80% of hepatitis C infections become chronic and lead to liver disease. When combined with hepatitis B, hepatitis C now accounts for 75% percent of all cases of liver disease around the world. Liver failure caused by hepatitis C is now leading cause of liver transplants in the United States.

Did you know?

Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

Genetic control of flower symmetry. Genetic control of flower symmetry.
Graphic display of hypothetical results of a predator removal experiment. Graphic display of hypothetical results of a predator removal experiment.
A toddler's developing motor skills allow the child to exert more independence and control over A toddler's developing motor skills allow the child to exert more independence and control over
Masamichi Udagawa and Sigi Moeslinger, Antenna Design, Knoll Toboggan Chair. Masamichi Udagawa and Sigi Moeslinger, Antenna Design, Knoll Toboggan Chair.
A typical low-side driver (LSD) which uses a control module to control the ground side of the relay ... A typical low-side driver (LSD) which uses a control module to control the ground side of the relay ...
Locus control and developmental expression of human globin–complex genes Locus control and developmental expression of human globin–complex genes
Video: Arthroscopy

For a complete list of videos, visit our video library