chi squrare

Question 1

Data

Answer 1

Information that has been transformed into a manner that can be manipulated, analysed, and used to infer relationships.

Question 2

Different Types of Data

Answer 2

Categorical Data
Binary  Bi = 2 options
Nominal   Nom = name
Ordinal  Ord = order
Continuous Data
Interval Ordered with set intervals
Ratio  Intervals where 0 = absolute

Question 3

How do we calculate the expected frequencies

Answer 3

Modelij = Eij =   (row total i x column total j)/n
E = Expected count
i = the row (i1 = Achievement, i2= Diffusion, etc.) 
j = the column (j1 = Adolescence, j2= Young Adulthood, etc.) 
ij = the cell in row (i) and column (j)
n = The total number of people in the table

Question 4

Calculating Chi-Squared

Answer 4

x2 = sum(O-E)sq/E

Question 5

Degrees of Freedom

Answer 5

The number of values in an equation that are free to vary

n-1

Question 6

Degrees of Freedom in a contingency table

Answer 6

(row -1)x(colum -1)

Question 7

Calculating Standardised Residuals

Answer 7

Z=(O-E)/sqrE
>-1.96 or <1.96 Not significant
1.96 < .05
If standardize residual is positive,the observed count is more than expected
if standardise residual is negative then the observed count is less than expected