chapter 4 (multivariate techniques)

Question 1

normal curve

Answer 1

bell-shaped theoretical distribution of scores that is unimodal and symmetrical. standard normal curve always has a mean of 0 and standard deviation of 1.

Question 2

z scores

Answer 2

standard scores; the way scores are expressed after they have been standardized to the theoretical normal curve.

Question 3

standard normal curve table

Answer 3

detailed description of the area between a z score and the mean of any standardized normal distribution.

Question 4

probability

Answer 4

the ratio of the number of successes to the number of possible events. usually expressed as proportions.