Midterm

Question 1

NOIR?

Answer 1

Nominal, Ordinal, Interval, Ratio

Question 2

Nominal?

Answer 2

Differences among the response categories

Question 3

Ordinal?

Answer 3

Differences among the response categories that can be ranked or ordered

Question 4

Interval?

Answer 4

Differences among the response categories that can be rank ordered and have the exact amount of space between each response category

Question 5

Ratio?

Answer 5

Differences among the response categories that can be rank ordered and have the same exact amount of space between each response category and has a zero reference point

Question 6

Categorical/Discrete variables?

Answer 6

Nominal and Ordinal

Question 7

Interval/Ratio

Answer 7

Continuous/Scale

Question 8

Likert Scale?

Answer 8

Strongly Agree, Agree, Neutral, Disagree, Strongly Disagree

Question 9

3 types of error?

Answer 9

Measurement, Sampling, Random

Question 10

Letter?

Answer 10

Placeholder for numbers

Question 11

Descriptive Stats?

Answer 11

Used to describe basic patterns within data

Question 12

Hypothesis?

Answer 12

Statement of presumed relationship among two or more variables

Question 13

Inferential Stats?

Answer 13

Used to make inferences about a population based on info that is contained within a sample

Question 14

Frequency Distribution?

Answer 14

A listing of all observed scores for each category of a variable conducted for: organization of data, present data in the table of a graphic, catches coding errors

Question 15

x=?

Answer 15

Variable

Question 16

f=?

Answer 16

Frequency

Question 17

p=?

Answer 17

Proportional Frequency

Question 18

%=?

Answer 18

percentage Frequency

Question 19

c%=?

Answer 19

Cumulative Frequency Frequency

Question 20

N=?

Answer 20

Population Size

Question 21

n=?

Answer 21

Sample Size

Question 22

Mode?

Answer 22

Most often occurring value or category in a distribution of values or categories

Question 23

Median?

Answer 23

Middle score in a ranked distribution of scores or values

Question 24

Mean?

Answer 24

Average of all values for a variable

Question 25

Outlier?

Answer 25

Extremely large score or small score in a distributions of values for a variable

Question 26

Skew?

Answer 26

Distortion of data in a positive or negative direction

Question 27

Variability?

Answer 27

Indicator of how much a set of data are spread out or are clustered together

Question 28

Range?

Answer 28

Distance between largest and smallest score and the distribution of values or scores

Question 29

Percentile?

Answer 29

Desired division outpoint in a distribution of scores and values

Question 30

Standard Deviation?

Answer 30

Average amount of any given value or score in a distribution of values or scores will deviate from the mean

Question 31

Degrees of freedom formula?

Answer 31

n - 1

Question 32

Population?

Answer 32

Total group of people being studied

Question 33

Sample?

Answer 33

Smaller number of people drawn from the population

Question 34

Probability?

Answer 34

Likelihood that a given event will occur with enough trials

Question 35

Four rules of probability?

Answer 35

Addition, Joint Occurrence, Multiplication, Act of Replacement

Question 36

Addition rule?

Answer 36

The probability for alternate events is equal to the sum of probabilities of the individual events. (this or that)

Question 37

Joint Occurrence rule?

Answer 37

If you want this or that are they linked or exclusive

Question 38

Multiplication rule?

Answer 38

Probability of the compound event equals to the multiple of the probabilities of the separate events. (this or then)

Question 39

Act of Replacement rule?

Answer 39

Account for whether each compound event is done with replacement locks the odds; without replacement alters the odds

Question 40

Gambler's Fallacy?

Answer 40

A string of bad luck will eventually turn good

Question 41

P-value?

Answer 41

Likelihood that a statistical result would have been obtained by chance alone

Question 42

Statistical Signifigance?

Answer 42

If p value is less than .05

Question 43

Independant Variable?

Answer 43

X

Question 44

Dependent Variable?

Answer 44

Y

Question 45

Parsimony?

Answer 45

Explaining most amount of things with the least amount of words

Question 46

Tautology?

Answer 46

Statement that is true by definition

Question 47

Nominal Example?

Answer 47

Blood type, race, eye color

Question 48

Ordinal Example?

Answer 48

Education level, Income level, Satisfaction rating

Question 49

Interval Example?

Answer 49

Temperature, IQ test, GPA

Question 50

Ratio Example?

Answer 50

Height, Weight, Crime rate