week 5

Question 1

parametric tests

Answer 1

compare means of groups

assumes that data are numeric and that data is random with a gaussian distribution of variables

Question 2

one sample t test

Answer 2

comparing group mean with a reference value

Question 3

independent sample t test

Answer 3

comparing means of 2 groups

Question 4

paired t test

Answer 4

all participants measures pre and post intervention, compare means

Question 5

one way anova

Answer 5

compare means of >2 groups

p value, post hoc

Question 6

repeated measures anova

Answer 6

all participants tested under >2 conditions/times (ie ROM at 0,3,6 weeks)

Question 7

2 way anova

Answer 7

Main effects: A,B
Interaction: AxB

difference in means according to 2 or more factors

or difference in means among 2 or more groups with repeated measures (interaction btw time and factor)

Question 8

interaction

Answer 8

differences in the effects of one variable according to the level of another

Question 9

non parametric tests

Answer 9

parametric assumptions not met, non gaussian dist

Question 10

parametric independent test

Answer 10

two sample t test

Question 11

parametric paired

Answer 11

paired t test

Question 12

non parametric independent

Answer 12

mann whitney U

Question 13

nonparametric paired

Answer 13

wilcoxin signed rank

Question 14

assessment of linear correlation

Answer 14

p value: is there a correlation?
r value: how strong?
.75= excellent