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

Author Question: In order to establish a connection between an explanatory and response variable in an observational ... (Read 87 times)

Davideckstein7

  • Hero Member
  • *****
  • Posts: 555
on: Jul 24, 2018
In order to establish a connection between an explanatory and response variable in an observational study, what is needed?
 a. Statistical methods that examine the connection.
  b. A comparison to determine if changes in the explanatory variable are related to changes in the response variable.
  c. Either a) or b)
  d. You can never establish a connection between an explanatory and a response variable without doing a randomized experiment.

Question 2

Name one disadvantage and one advantage of an observational study over an experiment.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

jamesnevil303

  • Sr. Member
  • ****
  • Posts: 337
Reply #1 on: Jul 24, 2018
Answer to Question 1

C

Answer to Question 2

DISADVANTAGE  THE RESEARCHERS OBSERVE, BUT CANNOT CONTROL, THE EXPLANATORY VARIABLES. ADVANTAGE  THEY ARE MORE LIKELY TO MEASURE PARTICIPANTS IN THEIR NATURAL SETTING (AND DO NOT MANIPULATE THEIR ENVIRONMENT).


Davideckstein7

  • Member
  • Posts: 555
Reply 2 on: Jul 24, 2018
Thanks for the timely response, appreciate it

at

  • Member
  • Posts: 359
Reply 3 on: Yesterday
Excellent

« previous next »
 

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?

Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.

Did you know?

According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.

Did you know?

The toxic levels for lithium carbonate are close to the therapeutic levels. Signs of toxicity include fine hand tremor, polyuria, mild thirst, nausea, general discomfort, diarrhea, vomiting, drowsiness, muscular weakness, lack of coordination, ataxia, giddiness, tinnitus, and blurred vision.

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).

Upsetting the entire social order, the French Revolution removed the past as a sure guide to the ... Upsetting the entire social order, the French Revolution removed the past as a sure guide to the ...
Negative feedback control of a regulated variable. Negative feedback control of a regulated variable.
An overhead camshaft engine equipped with variable valve timing on both the intake and exhaust ... An overhead camshaft engine equipped with variable valve timing on both the intake and exhaust ...
The Cells of the Innate Response The Cells of the Innate Response
Schematic diagram showing polyclonal response by B cells against linear epitopes. Schematic diagram showing polyclonal response by B cells against linear epitopes.
Immune-to-brain signaling occurs in response to infection, injury, and inflammation that occur in pe Immune-to-brain signaling occurs in response to infection, injury, and inflammation that occur in pe
Video: Gas exchange - partial pressure, locations, external and internal respiration

For a complete list of videos, visit our video library