Research Methods

Question 1

Formula: Identify the IV in the study (2)

Answer 1

S. A. M
C. I. D

Question 2

Formula: Identify the DV in this study (2)

Answer 2

Identification (1)
Operationalisation (1)

Question 3

Formula: Write a suitable hypothesis for this study (3)

Answer 3

(1) either directional or non-directional
(1) both variables - IV and DV
(1) operationalise both variables

Question 4

Formula: Should the hypothesis be directional or non-directional (2)

Answer 4

Past research = directional
No past-research = non-directional

Question 5

Formula: Explain how the psychologist would have obtained the participants for their stratified sample (3)

Answer 5

(1) identify the strata - contextualise
(1) calculate proportions
(1) use random sampling
(1) assign categories/conditions

Question 6

Formula: Explain how the psychologist would have obtained the participants for their random sample (3)

Answer 6

(1) assign each pps a number
(1) put all numbers in a hat
(1) randomly select numbers
(1) put half into condition 1 and half into condition 2

Question 7

Formula: Explain how the psychologist would have obtained the participants for their systematic sample (3)

Answer 7

(1)

Question 8

Formula: Explain how the psychologist would have obtained the participants for their stratified sample (3)

Answer 8

(1) identify strata - contextualise e.g boys + girls study psychology
(1) calculate percentage e.g. 60% males 40% females
(1) use random sampling method e.g names in a hat
(1) to assign to each condition e.g. a sample of 10 pps would need 6 males and 4 females

Question 9

Formula: Explain how the psychologist would have obtained the participants for a random sample (3)

Answer 9

(1) collect all names of pps
(1) put names in hat
(1) randomly pick out first 20 (example) to take