practical

Question 1

aim

Answer 1

investigate using comeplational method whether testosterone levels can be linked to aggression levels

Question 2

co-variable 1

Answer 2

testosterone levels measured using 4D & 2D finger ratio averaged across both hands and measured in mm which shows testosterone levels exposed in the womb

Question 3

co-variable 2

Answer 3

aggression levels- measured using buss-perry aggression questionnaire where each pp will have an aggression rating by choosing on a 5 point scale.

Question 4

alternate hypothesis

Answer 4

There will be a correlation between testosterone measure by 4D/2D ratio measured in mm and averaged across both hands & aggression measured in self-rating by Buss-Perry questionnaire

Question 5

Null hypothesis

Answer 5

There will be no correlation between testosterone using 4D/2D ratio measured by m, in both hands & aggression measured by self-rating using Buss-Perry aggression scale

Question 6

Sample

Answer 6

Opportunity sample 15 students from reigate college ages between 16-17

Question 7

Procedure

Answer 7

Informed consent given to ppts
Asked to complete Buss-Perry questionnaire in silence to avoid any ppt variables
measured fingers with a ruler then converted to mm and recorded data

Question 8

Appropriate test for our questionnaire

Answer 8

Test for correlation, ordinal measured using 4D/2D ratio and questionnaire related as it was in pairs and measurement of aggression and test for each ppt

Question 9

Results

Answer 9

Strong positive correlation
Observed value 0.8 for Spearmans rho greater than critical value of 0.05 null hypothesis rejected

Question 10

valdiity

Answer 10

internal validity is high because of self report q to gain info and ask direct q on feelings

Question 11

generalisability

Answer 11

only 16-17 year olds
psych students

Question 12

reliability

Answer 12

high can be repeated due to standardised but measurements may be off due to use of ruler