« previous next »

Author Question: Which of the following can get in the way of concluding a causal connection between two measurement ... (Read 87 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?

No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.

Did you know?

Signs and symptoms of a drug overdose include losing consciousness, fever or sweating, breathing problems, abnormal pulse, and changes in skin color.

Did you know?

In women, pharmacodynamic differences include increased sensitivity to (and increased effectiveness of) beta-blockers, opioids, selective serotonin reuptake inhibitors, and typical antipsychotics.

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?

Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.

Blood pressure measurement. Blood pressure measurement.
Blood glucose measurement. A postprandial test may be self-administered. (a) A lance pierces the ski Blood glucose measurement. A postprandial test may be self-administered. (a) A lance pierces the ski
Instructing Patients According to Their Needs: Teaching Peak Flow Measurement Instructing Patients According to Their Needs: Teaching Peak Flow Measurement
Connection between the hypothalamus and the posterior pituitary gland. Connection between the hypothalamus and the posterior pituitary gland.
Humidity Measurement and Gas Flowrate Experiment Humidity Measurement and Gas Flowrate Experiment
Precipitation Measurement Precipitation Measurement
Video: Osteoporosis

For a complete list of videos, visit our video library