« previous next »

Author Question: What is the most likely problem for a randomized experiment that uses ... (Read 59 times)

madam-professor

  • Hero Member
  • *****
  • Posts: 584
on: Jul 24, 2018
What is the most likely problem for a randomized experiment that uses volunteers?

Question 2

If a statistically significant relationship is found in an observational study for which the sample represents the population of interest, then which of the following is true?
 a. A causal relationship cannot be concluded and the results cannot be extended to the population.
  b. A causal relationship can be concluded but the results cannot be extended to the population.
  c. A causal relationship cannot be concluded but the results can be extended to the population.
  d. A causal relationship can be concluded and the results can be extended to the population.


ally

  • Sr. Member
  • ****
  • Posts: 331
Reply #1 on: Jul 24, 2018
Answer to Question 1

A common problem for experiments that use volunteers is extending results inappropriately. Common sense should enable you to figure out whether the volunteers in the study are representative of a larger population for that question.

Answer to Question 2

C


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The oldest recorded age was 122. Madame Jeanne Calment was born in France in 1875 and died in 1997. She was a vegetarian and loved olive oil, port wine, and chocolate.

Did you know?

According to the American College of Allergy, Asthma & Immunology, more than 50 million Americans have some kind of food allergy. Food allergies affect between 4 and 6% of children, and 4% of adults, according to the CDC. The most common food allergies include shellfish, peanuts, walnuts, fish, eggs, milk, and soy.

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.

Did you know?

Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

Cards Used in a Socially Situated Version of the Problem-Solving Test Cards Used in a Socially Situated Version of the Problem-Solving Test
How to solve a trigonometric problem involving two right triangles (Question 1) How to solve a trigonometric problem involving two right triangles (Question 1)
Rosenthal and Fode’s Rat Experiment Rosenthal and Fode’s Rat Experiment
Solution to exponential problem Solution to exponential problem
he Luria-Delbriick Experiment Demonstrating Are Spontaneous he Luria-Delbriick Experiment Demonstrating Are Spontaneous
Problem Problem
Video: Cardiac conductile cells

For a complete list of videos, visit our video library