« previous next »

Author Question: Because researchers are generally more concerned with establishing internal validity rather than ... (Read 72 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?

The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).

Did you know?

A headache when you wake up in the morning is indicative of sinusitis. Other symptoms of sinusitis can include fever, weakness, tiredness, a cough that may be more severe at night, and a runny nose or nasal congestion.

Did you know?

Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

Did you know?

Vaccines prevent between 2.5 and 4 million deaths every year.

Did you know?

The human body's pharmacokinetics are quite varied. Our hair holds onto drugs longer than our urine, blood, or saliva. For example, alcohol can be detected in the hair for up to 90 days after it was consumed. The same is true for marijuana, cocaine, ecstasy, heroin, methamphetamine, and nicotine.

Aquatic microclimates: aquatic environments generally show less temperature variation compared to te Aquatic microclimates: aquatic environments generally show less temperature variation compared to te
Cystoscopy. In this procedure, a specialized endoscope with a rigid tube, known as a cystoscope, is Cystoscopy. In this procedure, a specialized endoscope with a rigid tube, known as a cystoscope, is
Bronfenbrenner’s model of the ecological-systems approach to studying development. He suggested that Bronfenbrenner’s model of the ecological-systems approach to studying development. He suggested that
Researchers have found that science instruction can be quite effective in grades 4 to 7. Researchers have found that science instruction can be quite effective in grades 4 to 7.
Internal Anatomy of the Spinal Cord Internal Anatomy of the Spinal Cord
Internal and external forces on the parties Internal and external forces on the parties
Video: Inflammation and Fever

For a complete list of videos, visit our video library