M3: z-scores

Question 1

Methods for describing an entire distribution of scores

Answer 1

Mean, Standard deviation

Question 2

The purpose of _______ is to identify and describe the exact location of each score in a distribution

Answer 2

z-scores

Question 3

z-score is also called as?

Answer 3

standard score

Question 4

gives you an idea of how far from the mean a data point is

Answer 4

z-score

Question 5

It is a measure of how many standard deviations below or above the population mean a raw score is

Answer 5

z-score

Question 6

A z-score can be placed on a normal distribution curve.

Answer 6

True

Question 7

Z-scores range from __ up to __.

Answer 7

-3, +3

Question 8

To use a z-score, you need to know the ____ (μ) and the ________ _________ (σ).

Answer 8

mean, standard deviation

Question 9

The relative location of your score within the distribution depends on the standard deviation as well as the mean

Answer 9

True

Question 10

The purpose of z-score is to demonstrate that a score by itself does necessarily provide much information about its position within a distribution.

Answer 10

False

Question 11

The raw score must not be transformed to a standardized score that is more meaningful.

Answer 11

False

Question 12

A z-score specifies the precise location of each value within the distribution.

Answer 12

True

Question 13

Characteristics of z-score distribution
1) Shape
2) Mean
3) Standard deviation

Answer 13

1) Same as that of the raw score distribution
2) Always 0
3) Always 1