Analysis of variance partitions the variance into two types: ...

[dbose]

Analysis of variance partitions the variance into two types: __________, which represents error variance only, and __________, which represents systematic plus nonsystematic variance.
 
  a. between-groups; within-groups
  b. within-groups; between-groups
  c. between-groups; between-groups
  d. within-groups; within-groups

Question 2

Laboratory studies contribute to scientific research because an experimenter can exert
  ____________, while field studies allow researchers to observe behaviors in the
  ____________ in which they occur.
 
  A) control : field
  B) variables : field
  C) control : context
  D) variables : context

[Brenm]

Answer to Question 1

b

Answer to Question 2

C