A condition that must be present for the effect to follow is ...

[biggirl4568]

A condition that must be present for the effect to follow is
 
  a. a necessary cause
  b. a sufficient cause
  c. a primary cause
  d. a secondary cause

Question 2

Ruth wanted to study the educational histories of inmates in prison. She interviewed prisoners on their involvement in school and academic performance. Ruth was conducting which type of research?
 
  a. longitudinal
  b. panel
  c. retrospective
  d. cohort

[Meganchabluk]

Answer to Question 1

a

Answer to Question 2

c

[biggirl4568]

Both answers were spot on, thank you once again

[Meganchabluk]

Great! Please up vote