Q9 Homework

Research Methods -- CRJUM8601 – Homework Quiz 8

Avoiding Researcher Effect (% to Raw Score)

Mean = 42 and s = 18

c) What score falls at the 12^th percentile rank?

a) What score falls at the 10^th percentile rank?

b) What score above which 25% of scores fall?

d) What score above which 30% of scores fall?

a) Answer: 18.96 b) Answer: 54 c) Answer: 20.94 d) Answer: 51.36

Mean = 200 and s = 35

e) What score falls at the 22^rd percentile rank?

f) What score above which 64% of scores fall?

g) What score falls at the 23^rd percentile rank?

e) Answer: 173.05 f) Answer: 187.40 g) Answer: 174.1

Mean = 40 and s = 6

h) What score falls at the 91^st percentile rank?

i) What score falls at the 93.32^rd percentile rank?

h) Answer: 48.04 i) Answer: 49

Mean = 500 and s = 100

j) What score above which 74% of scores fall?

k) What score falls at the 21.19^th percentile rank?

j) Answer: 436 k) Answer: 420

Mean = 200 and s = 25

l) What score falls at the 35^th percentile rank?

l) Answer: 191