Quan- Cross-tabulation and chi-square

Question 1

Cross tabulation and chi-square can only use what variables?

Answer 1

categorical variables - Nominal and Ordinal

Question 2

relationship is significant if relationship is less than -

Answer 2

0.5

Question 3

Null hypothesis =

Answer 3

no relationship between iv and dv

Question 4

Alternative hypothesis =

Answer 4

some relationship exists between iv and dv

Question 5

probability

Answer 5

= mathematical likelihood of an event occurring
- measure using P values
uses statistical tests to assess whether differences exist or occurred by chance

Question 6

Cross tabulation -

Answer 6

provides means to observe and measure a relationship between 2 categorical variables nominal and ordinal

• displays how data would look like if no relationship
• against how the data is actually is

Question 7

Chi-square test for independence -

Answer 7

measure of the differences between the expected and actual values for every cell
- larger differences between 2 variables may indicate disproportionality - a statistical significant relationship

Question 8

Bigger the discrepancy in Chi-square test =

Answer 8

bigger the chi-square value

Question 9

Degrees of freedom within chi-square test -

Answer 9

controls the size of the table
sum of chi-square increases as the size of the table increases
- bigger table means more differences
- degree of freedom a way of controlling the number of cells in a table