Biological Practical

Question 1

What was the aim of the practical?

Answer 1

To test whether exposure to testosterone in the womb had a relationship with aggression levels.

Question 2

What was the hypothesis for the practical?

Answer 2

There will be a correlation between 2d:4d digit ratio and aggression levels.

Question 3

What was the procedure of the practical?

Answer 3

-measure aggression score using question age out of 12.
-measure 2d:4d digit ratio using a riler(in mm).
-analyse data using a spearman’s rank test.

Question 4

What was the correlation co-efficient result? Was it significant? What does this mean?

Answer 4

-0.42
-not significant as is lower than the critical value so not a significant correlation between two co-variables.

Question 5

What was the conclusion to the practical?

Answer 5

No relationship between 2d:4d digit ratio and aggression levels.

Question 6

What is a strength of the practical in terms of generalisability?

Answer 6

Uses all genders so not representive

Question 7

What is a strength in terms of reliability?

Answer 7

Is a standardised procedure (e.g: questionnaire) so easy to repeat and more reliable.

Question 8

What is weakness in terms of generalisability?

Answer 8

Lots have shared characteristics(all form NE if England in college) so less representative.
-used opportunity sampling so more shared characteristics.
-ethnocentric sample as all from the UK.

Question 9

What is a weakness in terms of validity?

Answer 9

-social desirability when answering questionnaire as aggression is a sensitive topic.
-questionnaires are subjective as a self-report method

Question 10

What is a weakness in terms of ethics?

Answer 10

Protection for harm not kept as aggression may be uncomfortable and may cause psychological distress for participant.