parametric test

Question 1

what does parametric test assume?

Answer 1

1
) normal distribution
2
) All groups have the same variances
3) data was from independent groups

Question 2

what does parametric test require?

Answer 2

mean and standard deviation

Question 3

what does parametric test infer about?

Answer 3

parameters of distribution

Question 4

what is the 2 assumption for ANCOVA? about DV and coVARIATE

Answer 4

1) relationship between DV and covariate should be linear
2) Relationship between DV and covariate should be the same for all groups.
- it should not be significant, regression should be parallel

Question 5

what is the characteristics of parametric data?

Answer 5

• assume normal distribution
• data has to be on an interval/ ratio scale
• need to compute mean and standard deviation.

Question 6

what is the degree of freedom?

Answer 6

n-1

Question 7

assumption checks for all parametric test, what do u need to check?

Answer 7

check for normality- normal distribution
check for equal variances

Question 8

what are the 3 assumptions of ANOVA?

Answer 8

1. normal distribution
2. same variances
3. data was from independent groups.

Question 9

what is the parametric test of 1 sample group?

Answer 9

simple t test

Question 10

what is the parametric test of 2 dependent groups?

Answer 10

paired sample t test

Question 11

what is the parametric test of 2 independent groups?

Answer 11

Independent t test

Question 12

what is the parametric test of 2 or more independent groups?

Answer 12

One way ANOVA

Question 13

what is the parametric test of 2 or more dependent groups?

Answer 13

ANOVA

Question 14

what is the non parametric test of 1 sample group?

Answer 14

Wilcoxon rank test

Question 15

what is the non parametric test of 2 dependent groups?

Answer 15

Wilcoxon rank test

Question 16

what is the non parametric test of 2 independent groups?

Answer 16

Mann Whitney U test

Question 17

what is the nonparametric test of 2 or more dependent groups?

Answer 17

Friedman test

Question 18

what is the non parametric test of 2 or more independent groups?

Answer 18

Kruskal Wallis

Question 19

How do i check for normality for parametric test?

Answer 19

shapiro wilk test.
Q-Q plot test

Question 20

How do i check for equal variances for parametric test?

Answer 20

levene’s test

Question 21

what test should i use to test whether the means of 2 groups are significantly different
assuming variances are equal?

Answer 21

Student t test

Question 22

what test should i use to test whether the means of 2 groups are significantly different
assuming variances are unequal?

Answer 22

Welch’s test

Question 23

what does low p value for assumption check indicate?

Answer 23

violation of assumption of normality

Question 24

what is ancova? what does it measure?

Answer 24

evaluates whether population means of a continuous variable are equal across categorical variables
while
controlling continuous variables that are not of primary concern.