Causal research Flashcards

(30 cards)

1
Q

What type of data do i need for cross tabs?

A

Nominal/ordinal VS a Nominal/ordinal variable

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2
Q

IF i have a Nominal/ordinal and must compare with RATIO, I must do a…

A

Compare means

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3
Q

IF i have a Nominal/ordinal and must compare with Interval, I must do a…

A

Compare means (semantic differential)

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4
Q

What if i have both Interval/ratio and Interval/ratio??

A

Correlation and REGRESSION

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5
Q

Meaning of Interval

A

Numbers with NO real ZERO

for example= degrees celsius

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6
Q

Meaning of Ratio

A

Numbers with real zero and you can do math

For example= age, height, weight, income

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7
Q

In crosstabulation, to check the significance between variables…

A

you must always do a chi squared test

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8
Q

When doing a chi squared test, i must ONLY look at…

A

Pearson chi squared

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9
Q

if the … is more than 0.05 then there is …

A

if the ASYMPTOTIC SIGNIFICANCE is more than 0.05 then there is NO DIFFERENCE

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10
Q

in the chi squared test, there is a clear difference IF

A

ALL THREE COMBINED
1. Significance is lower than 0.05
3. minimum expected count = more than 1

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11
Q

Cross tabs can only be done when you have two types of variables that are …

A

BOTH CODES

(Nom/ord and nom/ord)

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12
Q

When i do a compare means, how can i find the significant difference?

A

ANOVA Table

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13
Q

Correlation, when is there a strong correlation?

A

+1 = strong positive correlation
0 = no correlation
-1 = strong negative correlation
(Pearsons, different from crosstabs)

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14
Q

think correlation

If the significance level is
more than 0,05

A

There is no statistically significant
correlation

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15
Q

think correlation

if the significance level is less than 0,05

A

There is a statistically significant
correlation

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16
Q

How to perform a correlation analysis

A

ANALYZE -> CORRELATE -> BIVARIATE

17
Q

to understand Pearsons better, pearsons …

A

tells you how strong and in which direction the relationship is

18
Q

to understand the P-value (Sig. 2 tailed) better, p value ….

A

tells you whether the correlation is statistically significant

19
Q

meaning pearson r

A

strength and direction

20
Q

meaning P value (sig. 2 tailed)

21
Q

To perform a compare means, i must

A

analyze -> compare means -> means

22
Q

in a compare means, the dependent list you must add

A

Interval/ratio

23
Q

in a compare means, in the independent list you must add

A

Nominal/ Ordinal

24
Q

For cross tabs, if you want to make a graph, ALWAYS ….

A

Clustered bar chart & summaries of groups and cases

25
Cross tabs: bars represent?
ALWAYS % of cases
26
crosstabs: category axis
DEPENDENT VARIABLE
27
crosstabs: define clusters by
ADD INDEPENDENT VARIABLE
28
How to recode into new/different variables ## Footnote (make a new group)
transform -> recode into different variables -> which variable to recode??
29
# recoding new variables change old value to
new value
30
after new values made=
variable view -> add labels to each value