theory

Question 1

Descriptive statistics

Answer 1

sample

Question 2

Inferential statistics

Answer 2

population

Question 3

confidence interval

Answer 3

95%

Question 4

Nominal

Answer 4

categorisation

Question 5

Ordinal

Answer 5

ranking

Question 6

interval

Answer 6

equal intervals

Question 7

Ratio

Answer 7

genuine 0 value

Question 8

qualitative

Answer 8

nominal, ordinal

Question 9

quantitative

Answer 9

discrete, continous

Question 10

continous

Answer 10

f.e. weight, height…

Question 11

discrete or discontinous

Answer 11

f.e. number of sibling
(can’t be 1,2)

Question 12

independent variable

Answer 12

causes sth

Question 13

dependent variable

Answer 13

affected by changes in the independent variable

Question 14

predictor variable

Answer 14

variable thought to predict an outcome variable

Question 15

mediator

Answer 15

that thong leads to another, that to another… (pool)

Question 16

moderator

Answer 16

depending on the relationship between 2 variables it might change (switch)

Question 17

confounder

Answer 17

there is a correlation but it doesn´t demonsatrate causality

Question 18

manifest/indicator variables

Answer 18

can be directly observed and measured

Question 19

latent variables

Answer 19

can’t be directly measured (anxiety)

Question 20

reverses

Answer 20

when the agreement level and the solitude level don’t have the same number (1-6)

Question 21

mode

Answer 21

most frequent value (the value that has more people on it)

Question 22

median

Answer 22

person in the middle of the distribution

Question 23

mean

Answer 23

sum of the scored dividen into the number of people (sensitive to outlyers)

Question 24

frequency distributions

Answer 24

number of people in each number of the tabale (ex. 1)

Question 25

x

Answer 25

possible values

Question 26

f

Answer 26

frequency

Question 27

fx

Answer 27

product of each possible value and its fequency

Question 28

fx2

Answer 28

product of the square of each possible value and its frequency

Question 29

F

Answer 29

accumulated frequency

Question 30

f/n

Answer 30

relative frequency given as a fraction of unity

Question 31

%

Answer 31

relative frequency

Question 32

accum. %

Answer 32

accumulated percentage

Question 33

summations

Answer 33

sum of all the values

Question 34

bar charts

Answer 34

separated, for discrete variables

Question 35

histograms

Answer 35

no spaces between them, for continous variables

Question 36

Qx

Answer 36

quartiles (only 3, they separate the sample into 4 quarters)

Question 37

Dx

Answer 37

deciles

Question 38

Px

Answer 38

percentiles

Question 39

number of percentiles

Answer 39

99 P1-P99

Question 40

o2

Answer 40

varianza

Question 41

o

Answer 41

desviación típica

Question 42

x(-arriba)

Answer 42

mean

Question 43

skewness de medio punto a 1

Answer 43

moderate skewed

Question 44

skewness de más de 1

Answer 44

markedly skewed

Question 45

kurtosis positiva

Answer 45

leptokurtic (variance + pequeña) sharp distribution

Question 46

kurtosis 0

Answer 46

campana de gauss: normal

Question 47

negative curtosis

Answer 47

platykurtic (varianza + grande) flattened distribution

Question 48

what are the z-scored used for

Answer 48

to buy standard deviations

Question 49

mean of stardardised scores

Answer 49

0 z-=0

Question 50

standard deviation of standardised scores

Answer 50

1

Question 51

N(x,y)

Answer 51

N: normal distribution, x: mean, y:SD

Question 52

alpha

Answer 52

márgen de error o level of significance

Question 53

1-alpha

Answer 53

confidence level

Question 54

t-value positiva

Answer 54

u1>u0

Question 55

t-value negativa

Answer 55

u1<u0

Question 56

cohen’s D

Answer 56

effect size