MacDonald, Zanna, and Fong (1996) describe certain limitations ...

[dalyningkenk]

MacDonald, Zanna, and Fong (1996) describe certain limitations with previous research, regarding the type of study design used to assess alcohol and condom use.
 
  What type of design did the researchers of the current studies implement, in addition to
  this type of design, in an attempt to surpass some of these limitations?
  A) survey method
  B) case study method
  C) correlational method
  D) experimental method

Question 2

Since a t test for independent means may be used when Sample 1 and Sample 2 include different numbers of participants, the two estimates of the population variance are combined into an overall pooled estimate using a(n) __________.
 
  Fill in the blanks with correct word

[mcni194]

Answer to Question 1

D

Answer to Question 2

weighted average

[dalyningkenk]

Great answer, keep it coming

[vickybb89]

Excellent