Which of the following is the best analogy for neurofibrillary ...

[schs14]

Which of the following is the best analogy for neurofibrillary tangles that occur in Alzheimer's disease?
 
  a. Long hair that has not been brushed for a while and is in knots.
  b. Railroad tracks with ties that have become twisted around themselves, resulting in the collapse of the tracks.
  c. A series of runways at an airport without an effective air traffic controller.
  d. An extremely congested highway that has road construction combined with poor signs to direct commuters.

Question 2

Correlation does not imply causation. We know this because two main drawbacks of correlation studies are
 
  a. poor correlation coefficients and alpha rankings.
  b. third variable problem and directionality.
  c. magnitude and direction of the correlation.
  d. moderate association and fictional dependence.

[hugthug12]

Answer to Question 1

b

Answer to Question 2

b

[schs14]

Thanks for the timely response, appreciate it

[bulacsom]

Great answer, keep it coming