« previous next »

Author Question: Which of the following can get in the way of concluding a causal connection between two measurement ... (Read 77 times)

jman1234

  • Hero Member
  • *****
  • Posts: 560
on: Jul 24, 2018
Which of the following can get in the way of concluding a causal connection between two measurement variables?
 a. A weak correlation.
  b. An observational study.
  c. Confounding variables.
  d. All of the above.

Question 2

Researchers noticed that happier heart patients are much more likely to still be alive 10 years down the road than unhappy heart patients. Does this mean that if an unhappy heart patient suddenly decides to start being happy, this will cause them to live longer?


alexisweber49

  • Sr. Member
  • ****
  • Posts: 311
Reply #1 on: Jul 24, 2018
Answer to Question 1

D

Answer to Question 2

NO. THIS IS AN OBSERVATIONAL STUDY, NOT A CONTROLLED EXPERIMENT. MANY CONFOUNDING VARIABLES EXIST, FOR EXAMPLE, EXERCISE.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.

Did you know?

Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.

Did you know?

More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.

Did you know?

The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.

Did you know?

The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.

Advantages and disadvantages of select temperature measurement sites Advantages and disadvantages of select temperature measurement sites
Measurement of temporal artery temperature Measurement of temporal artery temperature
Humidity Measurement and Gas Flowrate Experiment Humidity Measurement and Gas Flowrate Experiment
(a) The connection required to test a Halleffect sensor. (b) A typical waveform from a Hall-effect ... (a) The connection required to test a Halleffect sensor. (b) A typical waveform from a Hall-effect ...
Diaphragmatic movement, measurement Diaphragmatic movement, measurement
Observation and Measurement Observation and Measurement
Video: Muscle cell structures - actin, myosin and titin filaments

For a complete list of videos, visit our video library