3.5 practical (biological)

Question 1

what was the aim of the practical?

Answer 1

to investigate the relationship between height and physical aggression

Question 2

what was the sample?

Answer 2

• 12 participants
• 6 male, 6 female
• age 16-62 (average 32)
• opportunity sample

make this up if you forget but remember it’s 12 participants

Question 3

what was the procedure for the practical?

Answer 3

• measure participant’s height in cm
• ask for consent by saying “do you want to answer this questionnaire?”
• give questionnaire link via social media
• Buss-Perry aggression questionnaire
• questionnaire measures physical,verbal,hostility and anger aggression

Question 4

what were the findings of the practical?

Answer 4

• spearman rho correlation test was used to see if the correlation was significant
• used significance level of 0.05
• calculated value was 0.0367

Question 5

what was the conclusion of the practical?

Answer 5

as the calculated value of 0.0367 is lesser than the critical value of 0.587 at the significance level of 0.05, we accept the null hypothesis —> write out the null hypothesis

Question 6

what’s a strength of the practical?

Answer 6

• it was correlational
• allows us to investigate relationship between aggression and a factor we cannot ethically or practically investigate otherwise
• therefore we can identify relationships between height and behaviour that otherwise cannot be investigated

Question 7

what’s a weakness of the practical?

Answer 7

• measured aggression using a questionnaire
• social desirability bias may occur and some people may lie to appear less or more aggressive
• therefore, the physical aggression score may not be accurate

Question 8

what are some improvements to the practical?

Answer 8

1. add distraction questions to prevent participants to guess the aim of the study

e.g = “do you think pineapples belong on pizza?”

2. make height measurements more accurate by using a measuring tape to ensure height values are accurate