This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Nonexperimental research methods consist of which of the following? a) test causal relationships ... (Read 25 times)

Tazate

  • Hero Member
  • *****
  • Posts: 532
on: Jul 13, 2018
Nonexperimental research methods consist of which of the following?
 
  a) test causal relationships between variables
  b) only describe characteristics of existing phenomenon
  c) can be descriptive, historical, or correlational
  d) examine factors that are not related

Question 2

If you have conducted a study using the regression-discontinuity design, how would you tell if your treatment had an effect?
 
  a. by looking at the data to see if the regression line of the posttest scores differs from the regression line of pretest scores.
  b. by statistically analyzing the data using Analysis of Variance.
  c. by comparing the pretest scores with the posttest scores to see if there was a significant change.
   d. by determining if there is a discontinuity in the regression line for the people above and below the cutoff score.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

frejo

  • Sr. Member
  • ****
  • Posts: 349
Reply #1 on: Jul 13, 2018
Answer to Question 1

c

Answer to Question 2

D


Tazate

  • Member
  • Posts: 532
Reply 2 on: Jul 13, 2018
YES! Correct, THANKS for helping me on my review

miss_1456@hotmail.com

  • Member
  • Posts: 289
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

Did you know?

There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).

Did you know?

The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

Did you know?

A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

Did you know?

In 2006, a generic antinausea drug named ondansetron was approved. It is used to stop nausea and vomiting associated with surgery, chemotherapy, and radiation therapy.

Some organisms used as models in genetic research Some organisms used as models in genetic research
Performing a Glycosylated Hemoglobin A1C Test Using a Bayer DCA Vantage Analyzer Performing a Glycosylated Hemoglobin A1C Test Using a Bayer DCA Vantage Analyzer
Other Forecasting Methods Other Forecasting Methods
Student Test Scores versus GDP per Capita Student Test Scores versus GDP per Capita
Cross-Cutting Relationships Cross-Cutting Relationships
Outgroup role in relative rate test Outgroup role in relative rate test
Video: Definitions of stroke volume, preload definition & Factors influencing stroke volume

For a complete list of videos, visit our video library