Statistical Testing^

Question 1

Statistical Testing

Answer 1

p < 0.05
findings have less than 5% difference
due to real difference
make result significant

Question 2

Nominal (Sign Tests)

Answer 2

Test of Difference
- Ind. Groups
= chi-squared
- Repeated Matched
= sign test
Test of Correlation
= chi-squared

Question 3

Ordinal (Sign Tests)

Answer 3

Test of Difference
- Ind. Groups
= mann-whitney
- Repeated Matched
= wilcoxon
Test of Correlation
= spearson’s rho

Question 4

Interval (Sign Tests)

Answer 4

Test of Difference
- Ind. Groups
= unrelated t-test
- Repeated Matched
= related t-test
Test of Correlation
= pearson’ r

Question 5

Nominal Info

Answer 5

separated categories

Question 6

Ordinal Info

Answer 6

ranked data

Question 7

Interval

Answer 7

precise data collected scientifically

Question 8

What’s the point of statistical testing?

Answer 8

allows to accept or reject a hypothesis and accept the null hypothesis
to be confident the IV cause the change in the DV not chance

Question 9

Conditions to use Sign Test

Answer 9

repeated measures (do both conditions)
looking for a difference
data must be nominal (separate categories)

Question 10

How do we work out the S value?

Answer 10

see for each participant if there has been a negative or a positive change
tally the neg and pos
remove the no change participant/s
S = total of least frequent sign

Question 11

What is S value?

Answer 11

the total of the least frequent sign

Question 12

The Rule Of R

Answer 12

if the statistical test has an r in it, the calculated value has to be equal or more than the critical value to be significant