Error variability or individual differences can be found

Error variability or individual differences can be found
 
  a. within each condition.
  b. between the conditions.
  c. Both a and b are true.
  d. Neither a nor b is true.

Question 2

When all possible samples have been randomly selected from a single
  population, the standard deviation of the resulting distribution of means is
  called
 
  a. the true standard deviation of the sample's individual scores
  b. the true standard deviation of the population's individual scores
  c. the standard error of the mean
  d. sample variance plus error variance

Question 3

Within-groups variability refers to
 
  a. differences in numbers within each condition.
  b. the same people in each condition.
  c. a repeated-measures ANOVA.
  d. a between-groups ANOVA.

Question 4

Every distribution of z scores has a
 
  a. mean of zero and a standard deviation of 1
  b. mean of 50 and a standard deviation of 10
  c. mean of 100 and a standard deviation of 15
  d. none of these, since every distribution of z scores is different