Practical

Question 1

what was the aim in the biological practical?

Answer 1

to investigate the correlation between testosterone (shown by 2D:4D ratio) and aggression (aggression questionnaire)

Question 2

what was the sample for biological research? what type of sampling was used?

Answer 2

20 psychology students

• 10 males and 20 females
• opportunity sampling

Question 3

what was the procedure for the biological practical? (6)

Answer 3

1-ppts completed an aggression questionnaire asking 10 questions about aggressiveness on a 4 point scale
2-the ppts ring and index fingers were measured
3-measured the ratio between the two
4-the results of both variables were plotted on a scatter graph to measure correlation
5-a spearman’s rho was calculated
6-ppt debrief

Question 4

what were the results of the biological practical? (2)

Answer 4

critical value= 0.35

rS= 0.08

Question 5

what were the conclusions from the biological practical?

Answer 5

• rS not greater than critical value=no significance

- the relationship between the level of testosterone and the level of aggression is insignificant

Question 6

what was the null hypothesis?

Answer 6

there will be no significance between the relationship of the 2D:4D ratio and the aggression questionnaire score

Question 7

what was the one-tailed hypothesis? (directional)

Answer 7

the smaller the 2D:4D ratio, the higher the score in the aggression questionnaire

Question 8

what was the two-tailed non-directional hypothesis?

Answer 8

there will be a positive relationship between 2D:4D ratio and score on the aggression questionnaire