How are the difference scores coded in a sign test? A) by ...

[ahriuashd]

How are the difference scores coded in a sign test?
 
  A) by their ranked size, with increases and decreases ranked separately
  B) by their ranked size, independent of sign (increase or decrease)
  C) as increases (+) or decreases ()
  D) as probabilities, p and q

Question 2

A researcher uses a repeated-measures design to compare individuals' performance before treatment with their performance after treatment. If all of the participants show improved performance of 8 or 9 points after treatment, then the researcher should find ____.
 
  A) a sample mean difference near zero
  B) a t statistic near zero
  C) the variance of the difference scores is near zero
  D) a very large variance in the difference scores

[smrtceo]

Answer to Question 1

C

Answer to Question 2

C

[ahriuashd]

Thanks for the timely response, appreciate it

[cassie_ragen]

Gracias!