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Marketing Research Semester 2 > SPSS > Flashcards

Flashcards in SPSS Deck (29):
1

Chi-squared

a statistical test that allows us to test a hypothesis using a sample, it provides a probability value of it occuring

2

what does a large chi-squared mean?

a statistically significant relationship

3

if there is one variable which statistical tests can you do?

frequencies
frequencies and descriptives

4

if there is two variables which statistical tests can you do?

depends on the type of data

5

two variables
two categorical
two or more categories within variables

chi-squared
cross tabulation

6

two variables
one categorical/ one continuous
two categories within variables
non-repeated measure

independent samples t-test

7

two variables
one categorical/ one continuous
two categories within variables
repeated measure

paired samples t-test

8

two variables
one categorical/ one continuous
three or more categories within variables

ANOVA

9

two variables
two continuous

correlation
simple linear regression

10

three variables
categorical dependent variable

logistic regression

11

three variables
continuous dependent variable

multiple linear regression

12

three variables
multiple dependent variables
grouping based on similarity between variables

exporatory factor analysis

13

three variables
multiple dependent variables
grouping based on similarity between cases

cluster analysis

14

independent samples t-test

establishes whether there is a statistically significant relationship between two variables using mean

15

assumptions of the independent/ paired samples t-test

data is normally distributed (histogram)
more then 30 cases
samples have equal variance

16

paired samples t-test

establishes whether there is a statistically significant relationship between two variables using mean

17

ANOVA

establishes whether there is a statistically significant relationship between three variables using variance

18

types of variance with ANOVA

within group variance
between group variance

19

within group variance

variance between members of the category on a given continuous variable

20

between group variance

differences in the grand mean and group mean for each group

21

f-statistic (ANOVA)

a ratio for the within-groups variance to the between-groups variance

22

what does it mean if the f-statistic is 0 (ANOVA)?

the means for between-group and within-group variance are the same

23

ANOVA assumptions

independent observations
normal distribution
homogeneity of variance
80+ observations

24

p-value

exact probability of getting computed test statistic that is due to chance

25

assumptions of chi-squared

both variables are categorical
expected count is more than 5

26

coding for nominal/ ordinal/ interval data

1,2,3,4, etc
male = 1, female = 2

27

coding for ratio data

enter directly
40yrs old

28

coding for missing data

-99

29

coding for a 'other' category

write text onto spreadsheet
if its not ticked then -99