In order to establish an unambiguous cause-and-effect ...

[jeatrice]

In order to establish an unambiguous cause-and-effect relationship between two variables, it is necessary to eliminate the possible influence of extraneous variables.
 
  a. True
  b. False
  Indicate whether the statement is true or false

Question 2

In _______________, the sampling is being done for the most frequent or typical case.
 
  Fill in the blank(s) with correct word

[emily12345]

Answer to Question 1

True

Answer to Question 2

modal sampling

[jeatrice]

Thanks for the timely response, appreciate it

[nanny]

Gracias!