Author Question: Explain the difference between the null hypothesis and the alternative hypothesis in a study. ... (Read 218 times)

ETearle

  • Hero Member
  • *****
  • Posts: 580
Explain the difference between the null hypothesis and the alternative hypothesis in a study.
 
  What will be an ideal response?

Question 2

Researchers often use a coding system to associate data with a particular participant during the course of a research study in order to ____.
 
  a. reduce the risk of fraud
 b. help protect confidentiality
  c. help with data analysis
 d. deceive participants



Melissahxx

  • Sr. Member
  • ****
  • Posts: 304
Answer to Question 1

The null hypothesis predicts that no difference exists between the groups being compared. The alternative hypothesis predicts that a significant difference exists between the groups being compared. This is the hypothesis that the researcher wants to support.

Answer to Question 2

b



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question


 

Did you know?

Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

Did you know?

Though Candida and Aspergillus species are the most common fungal pathogens causing invasive fungal disease in the immunocompromised, infections due to previously uncommon hyaline and dematiaceous filamentous fungi are occurring more often today. Rare fungal infections, once accurately diagnosed, may require surgical debridement, immunotherapy, and newer antifungals used singly or in combination with older antifungals, on a case-by-case basis.

Did you know?

The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.

Did you know?

GI conditions that will keep you out of the U.S. armed services include ulcers, varices, fistulas, esophagitis, gastritis, congenital abnormalities, inflammatory bowel disease, enteritis, colitis, proctitis, duodenal diverticula, malabsorption syndromes, hepatitis, cirrhosis, cysts, abscesses, pancreatitis, polyps, certain hemorrhoids, splenomegaly, hernias, recent abdominal surgery, GI bypass or stomach stapling, and artificial GI openings.

Did you know?

The human body produces and destroys 15 million blood cells every second.

For a complete list of videos, visit our video library