Week 8

Question 1

t test = ?

Answer 1

a statistical test procedure

analyses whether there’s a significant difference between the mean of 2 groups

Question 2

what are the three types of t tests?

Answer 2

one sample t test
independent sample t test
paired samples t test

Question 3

one sample t test is used when …

Answer 3

we want to compare the mean with a known reference mean

Question 4

independent sample t test is used when…

Answer 4

when we want to compare the means between two independent groups/samples

Question 5

paired samples t test is used when…

Answer 5

to compare the mean of two dependent groups

Question 6

how to calculate t value/standard error (SE)

Answer 6

difference between mean values / standard deviation from the mean (standard error)

Question 7

standard error?

Answer 7

standard deviation from the mean

Question 8

what are the 6 types of correlation?

Answer 8

strong/moderate/weak positive correlation

strong/moderate/weak negative correlation

Question 9

how is the strength of correlation tested?

Answer 9

pearson’s and spearman’s test

Question 10

when is a two group t-test appropriate?

Answer 10

when you have two continuous variables