Using within-subjects research designs typically results in ...

[CBme]

Using within-subjects research designs typically results in __________ relative to between-subjects designs.
 
  a. lower error variance
  b. higher cost
  c. lower efficiency
  d. lower statistical power

Question 2

In terms of correlational analyses, we credit Sir Francs Galton with developing the concept of
 
  a. analysis of variance
  b. co-relations
  c. independent sample t-tests
  d. joint probabilities

[leahm14]

Answer to Question 1

a

Answer to Question 2

b

[CBme]

Excellent

[zacnyjessica]

Thanks for the timely response, appreciate it