« previous next »

Author Question: The big problem with case studies is selection. This is the same as problems associated with _____. ... (Read 50 times)

tfester

  • Hero Member
  • *****
  • Posts: 534
on: Jun 19, 2018
The big problem with case studies is selection. This is the same as problems associated with _____.
 
  a. internal validity c. external validity
  b. random sampling d. random assignment

Question 2

Let's assume you are conducting an experiment to determine the effect of a new drug on the incidence of epileptic seizures. You select 20 epileptics from the 150 epileptics being treated at a nearby hospital and administer the drug to them. You record the number of seizures in each of the 20 subjects for one month. Then you record the number of seizures in each of the 20 subjects for one month without the drug. Being compulsive, you also record the number of seizures for the remaining 130 epileptics for one month. The number of seizures for each of the 130 epileptics constitutes _________.
 
  a. the dependent variable c. a statistic
  b. data d. independent variable


akemokai

  • Sr. Member
  • ****
  • Posts: 347
Reply #1 on: Jun 19, 2018
Answer to Question 1

C
External validity is the extent to which observations can be generalized to a larger group than the one studied. When a case is selected for study using the case study method, it often is unusual in some way, making it impossible to generalize from that case to a larger group.

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 use of salicylates dates back 2,500 years to Hippocrates's recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.

Did you know?

When intravenous medications are involved in adverse drug events, their harmful effects may occur more rapidly, and be more severe than errors with oral medications. This is due to the direct administration into the bloodstream.

Did you know?

Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.

Did you know?

Never take aspirin without food because it is likely to irritate your stomach. Never give aspirin to children under age 12. Overdoses of aspirin have the potential to cause deafness.

Using a bright light makes seeing where the smoke is coming from easier. In this case, smoke was ... Using a bright light makes seeing where the smoke is coming from easier. In this case, smoke was ...
How to solve any percent change problem How to solve any percent change problem
Social Problems, 10th Social Problems, 10th
Answer to Trig problem Answer to Trig problem
Identification of the numbers in the Word Problem Identification of the numbers in the Word Problem
Sexual Selection: Stalk-Eyed Flies Sexual Selection: Stalk-Eyed Flies
Video: Interview with an Anorexic Woman (Part 1 of 2)

For a complete list of videos, visit our video library