The scientific method used to demonstrate cause-and-effect ...

[littleanan]

The scientific method used to demonstrate cause-and-effect relationships is called
 
  a. correlation
  b. direct observation
  c. experimental research
  d. all of the above

Question 2

Define reliability. Define validity.
 
  What will be an ideal response?

[ricroger]

Answer to Question 1

c

Answer to Question 2

Answer: Reliability is the consistency of a score yielded by a psychological test. Validity is the extent to which a test measures what it is designed to measure.

[littleanan]

Thanks for the timely response, appreciate it

[meganmoser117]

Wow, this really help