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 47 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
Great answer, keep it coming :)

raili21

  • Member
  • Posts: 324
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.

Did you know?

The average human gut is home to perhaps 500 to 1,000 different species of bacteria.

Did you know?

To maintain good kidney function, you should drink at least 3 quarts of water daily. Water dilutes urine and helps prevent concentrations of salts and minerals that can lead to kidney stone formation. Chronic dehydration is a major contributor to the development of kidney stones.

Did you know?

Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.

Did you know?

IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

Birth Order and Intelligence Birth Order and Intelligence
Negative feedback control of a regulated variable. Negative feedback control of a regulated variable.
Negative feedback control of a regulated variable. Negative feedback control of a regulated variable.
How to solve a linear system when the variable is in the denominator position (Question 2 of 2) How to solve a linear system when the variable is in the denominator position (Question 2 of 2)
Stand behind the recipient. Lay your hands on the shoulders to establish contact. Squeeze the ... Stand behind the recipient. Lay your hands on the shoulders to establish contact. Squeeze the ...
Assume z is a standard normal random variable. What is the value of z if the area to the right ... Assume z is a standard normal random variable. What is the value of z if the area to the right ...
Video: Red Blood Cells - Erythropoietin (EPO)

For a complete list of videos, visit our video library