« previous next »

Author Question: Because researchers are generally more concerned with establishing internal validity rather than ... (Read 53 times)

ghost!

  • Hero Member
  • *****
  • Posts: 560
on: Jul 13, 2018
Because researchers are generally more concerned with establishing internal validity rather than external validity, they are typically more concerned with _________ and less concerned with ____________.
 
  a. random selection; random assignment
  b. random assignment; random selection
  c. populations; samples
  d. samples; populations

Question 2

In a(n) design, the experimenter takes multiple measures on the dependent variable both before and after treatment.
 
  a. non-equivalent control group
   b. interrupted time series
  c. multivariate
  d. before-after


ririgirl15

  • Sr. Member
  • ****
  • Posts: 385
Reply #1 on: Jul 13, 2018
Answer to Question 1

B

Answer to Question 2

B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Most fungi that pathogenically affect humans live in soil. If a person is not healthy, has an open wound, or is immunocompromised, a fungal infection can be very aggressive.

Did you know?

More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.

Did you know?

The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.

Did you know?

Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.

Did you know?

In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.

The stomach. Longitudinal view showing regions and internal structures. The stomach. Longitudinal view showing regions and internal structures.
Range of Motion of the Shoulder Joint, Internal Rotation Range of Motion of the Shoulder Joint, Internal Rotation
The kidney. Illustration of a sectioned kidney, which reveals its internal features. The kidney. Illustration of a sectioned kidney, which reveals its internal features.
Aneurysms: (A) saccular (Simon Fraser/RNC, Newcastle/Photo Researchers, Inc.); (B) fusiform. Aneurysms: (A) saccular (Simon Fraser/RNC, Newcastle/Photo Researchers, Inc.); (B) fusiform.
Internal structure of the nose—lateral view Internal structure of the nose—lateral view
Comparing Internal Structures of the Planets Comparing Internal Structures of the Planets
Video: Fetal development - Weeks 9 to 38

For a complete list of videos, visit our video library