More statistical tests

Question 1

Correlation between one dependent variable against one independent variable

Answer 1

• for continous or parametric data use Pearsons

- for non-parametric data then uses Spearman’s or Kendall’s

Question 2

Regression between one dependent variable and one independent variable

Answer 2

• continous data= simple linear regression

- categorical data- simple logistical regression

Question 3

Regression between one dependent variable and more than one independent variable

Answer 3

• continous data=multiple linear regression/ANCOVA

- categorical data= multiple logistic regression

Question 4

Regression for two or more dependent variables and one ore more independent variables

Answer 4

• categorical=MANOVA

- continuos=MANCOVA/ multivariate multiple regression

Question 5

Degree of freedom

Answer 5

-used when we calculate an estimate

of one statistic from an estimate of another

Question 6

Sample mean estimate degree of freedom

Answer 6

-population size (n)

Question 7

Population SD estimated from sample degree of freedom

Answer 7

-n-1

Question 8

Estimate of two sample t test degree of freedom

Answer 8

(n1+n2)-2

Question 9

Estimate of chi-square degree of freedom

Answer 9

(rows-1)*(columns-1)

Question 10

Estimate of one sample t test degree of freedom

Answer 10

n-1

Question 11

Estimate of one way ANOVA total variance degree of freedom

Answer 11

Total N-1

Question 12

Estimate of one way ANOVA within groups degree of freedom

Answer 12

Total N-number of groups

Question 13

Estimate one way ANOVA between groups degree of freedom

Answer 13

Number of groups -1