When a test has been shown to be measuring what it purports to ...

[acc299]

When a test has been shown to be measuring what it purports to measure,
  then we may assume that the test is
 
  a. reliable
  b. valid
  c. containing only homogeneous items
  d. containing only heterogeneous items

Question 2

SY is the symbol for _____.
 
  a. sample standard deviation
  b. estimated population standard deviation
  c. standard error of the mean
  d. standard error of the estimate

[frankwu0507]

Answer to Question 1

b

Answer to Question 2

d

[acc299]

Thanks for the timely response, appreciate it

[Liamb2179]

Wow, this really help