Final

Question 1

Describes variables and relationships between variables (table 1)

Answer 1

Descriptive statistics

Question 2

Used to determine if an IV has a significant effect on a DV

Answer 2

inferential statistics

Question 3

we use this/these measures of central tendency when analyzing ratio level data

Answer 3

mean, median, mode

Question 4

We use this/these measures of central tendency when analyzing ordinal level data

Answer 4

median, mode

Question 5

We use this/these measures of central tendency when analyzing nominal level data

Answer 5

mode

Question 6

What are the 5 ways to report data?

Answer 6

1. %
2. % change
3. rates
4. ratios
5. proportions

Question 7

batting average is an example of reporting data as a:

Answer 7

proportion
(# of hits vs. # of a bats)

Question 8

If there are 25 nurses now, compared to 17 a few years ago, we are looking at the:

Answer 8

% change

Question 9

If looking at divorce, suicide, crime… we look at:
(# of incidents/total population) x 100

This is an example of:

Answer 9

rates

Question 10

if looking at something out of 100,000 people, this is an example of:

Answer 10

ratios

Question 11

these are always between 0 and 1

Answer 11

proportions

Question 12

1 SD from the mean

Answer 12

68.2%

Question 13

2 SD from the mean

Answer 13

96%

Question 14

Represents a comparison of one thing to another

Answer 14

ratios

Question 15

(new-original / original) x 100

Answer 15

percentage change

Question 16

represents the frequency of something for a standard sized unit

Answer 16

rates

Question 17

also called Gaussian distribution

Answer 17

Normal distribution

Question 18

Represents the distance above or below the mean, in standard deviation units, of any raw value in a distribution

Answer 18

z score

Question 19

ranges from -3 to +3

Answer 19

z score

Question 20

What are 3 ways to describe the relationship between variables?

Answer 20

1. crosstab analysis
2. comparison of means
3. correlations

Question 21

In order to do a chi square, the DV must be ____

Answer 21

nominal

Question 22

if you want to figure out what gender of people by certain cars, you would do this type of stat design

Answer 22

chi-square

Question 23

when studies that find a significant difference are easier to publish, this is called

Answer 23

publication bias

Question 24

Differences among groups for a single IV that are significant, temporarily ignoring all other IVs

Answer 24

main effect

Question 25

differences among groups of a single IV that are predictable only by knowing the level of another IV

Answer 25

interaction effect

Question 26

When you get a false positive, this is called:

Answer 26

type 1 error

Question 27

the degree of risk you are willing to take to reject the null hypothesis when it is true

Answer 27

type 1 error