GAC013 AE1 Draft: Scientific Investigation and Report Do Males and Females Have Different Abilities When Estimating Size? Student’s Name: Wonsuk Kim Student ID#: Teacher : Elmer Kang Due Date: 12 July 2012 Word Count: 1081 Table of Contents Abstract ............................................................................................................................................................................................ 1 1. Introduction .............................................................................................................................................................................. 1 2. Methodology ............................................................................................................................................................................ 1 3. Results ......................................................................................................................................................................................... 2 4. Discussion .................................................................................................................................................................................. 3 5. Conclusion ................................................................................................................................................................................. 4 Appendix ......................................................................................................................................................................................... 5 Reference List ................................................................................................................................................................................ 6 GAC013 AE1 Wonsuk Kim (No Student ID#) Abstract This scientific report investigates whether there is gender difference in estimating measurements between genders. The hypothesis is that females are better at estimating measurements. The experiment was done on 10 males and 10 females. There were 3 different kinds of experiments covering the ability to estimate length, area, and weight. The results showed that females did better on all three experiments. However, because these experiments were done on a very small number of subjects, the validity of the results is questioned. 1. Introduction Men and women are psychologically different in many aspects because of difference in certain features of their brains. Among the many differences is the difference of estimating measurements. The purpose of this experiment is to know whether there is difference at estimating among genders. The hypothesis is, females are better at accurately estimating length, weight, and area than males. 2. Methodology Three methods were used to test the estimating abilities of twenty subjects. The subjects were comprised of 10 are males and 10 females. The three methods shown tell the difference in estimating among genders in a variety of areas. Those three methods each cover experiments on length, area, and weight. The experiment on length was done by showing the subjects two sticks, one being small and the other longer one being 6 times longer than the small one. Then, the subject was to guess how many small sticks can add up to make the length of the long stick. The number difference of sticks from the answer was then recorded. If the subject chose 6 sticks as the answer, then he or she gets zero for the difference from the answer. The same was done with area, which asked subjects to guess the amount of small rectangles that can fit into the big square. Then, the number difference of rectangles from the answer was recorded. If the subject chose 50 rectangles as the answer, he or she got it correct. For the last experiment on weight, each subject was to hold one of the five bottles in a 12/7/2012 page 1 GAC013 AE1 Wonsuk Kim (No Student ID#) bag. Those five bottles contain different amount of water. With their eyes closed they were asked to remember what they held. After that, the five bottles were taken out of the bag. Finally, the subjects were told to select from the five bottles what they thought they held before. The difference of weight between the bottle that was chosen in the bag and then the bottle chosen outside of the bag was then recorded. If the same bottle was chosen, the weight difference was recorded as zero. 3. Results According to the results, it was generally identified that females were better at estimating measurements than males on all three methods. For the experiment on length, the average of length difference with the answer for females was 3mm, whereas, the average for males was 5.4mm. Then, for the experiment on area, the average difference of rectangles from the answer for females was 8.7 rectangles, whereas, the result for males was 9.1 rectangles. For the last experiment about weight, the average difference from the answer for females was 4mg, whereas, it was 5mg for males. Another notable fact about the experiment was that there were more correct answers for females than males. 13 out of 30 results for females were correct, however, 10 out of 30 results for males were correct. Difference from answer Weight(mg) Length(mm) Area(rectangles) Female1 20 6 0 Female2 0 3 18 Female3 10 0 10 Female4 0 3 16 Female5 0 0 18 Female6 0 6 10 Female7 10 0 5 Female8 0 3 10 Female9 0 6 0 Female10 0 3 0 Average 4 3 8.7 12/7/2012 page 2 GAC013 AE1 Wonsuk Kim (No Student ID#) Difference from answer Weight(mg) Length(mm) Area(rectangles) Male1 10 6 41 Male2 20 12 10 Male3 10 3 9 Male4 10 0 12 Male5 0 9 4 Male6 0 3 10 Male7 0 6 5 Male8 0 6 0 Male9 0 6 0 Male10 0 3 0 Average 5 5.4 9.1 4. Discussion The experiment confirms the hypothesis that females are better at accurately estimating length, area and weight than males. The hypothesis was made due to an assumption that females are better at connecting information inside their brains. According to Zaidi from King Saud University, females have more white matter in their brain than males. The white matter is in charge of communication between different parts of the brain. If the communication between different parts of the brain were to be better, analyzing data was thought to be done in a more efficient way. The results of the experiment did have females as being better at estimating the three categories that were presented. However, according to Leeson from the Southern Cross University, he indicated that no significant results were found that determined the difference of estimating measurements between males and females by testing on young students. According to all the research done in the experiment, he noticed that girls only did poorly than boys when they had a competition like atmosphere. This is when the students were given multiple choice questions or when they were pressured by time. However, excluding those situations, no difference was found. Even the strategies that were used by both genders were similar. 12/7/2012 page 3 GAC013 AE1 Wonsuk Kim (No Student ID#) The result that Leeson got was very different from the result that was drawn from this experiment. Leeson did an experiment on 84 to 244 students which is a significant difference from the number of subjects that the experiment done by this report had. Meanwhile, this report had only 20 subjects, which is very small. Moreover, the experiment done on areas with rectangles had one male subject who did very poorly on estimating compared to other subjects. Excluding the result by this one male subject, the males did much better on estimating area than females, having only 5 errors as the difference between the answer while women had an average of 8.7. So, no actual significance between the genders in estimating could be found. That is because female subjects did better in length and weight, but male subjects excluding one person did better on area, making it hard to determine a notable result. The effectiveness of this research is far from beign notable. The main reason is because of its lack of subjects. It really didn’t have much effect on earning any other special information. To emphasize, even though the experiment confirmed the hypothesis of this experiment, it is not reliable due to the number of subjects. 5. Conclusion To summarize, the experiment turned out to be supporting the hypothesis. The result showed that females are better at estimating than males. If there really were a difference in estimating skills between males and females, it could have been used for further studies on the difference of brains among genders. If the result that is attributed by this report is valid, there can be some part of the female brain that is bigger or more efficient than that of a male. However, according to Leeson’s research, it seems that there might not be much further studies that can be derived from trying to figure out the difference in estimating skills between females and males. 12/7/2012 page 4 GAC013 AE1 Wonsuk Kim (No Student ID#) Appendix Average Difference From Answer in Each Category Females Males 8.7 4 5.4 5 Weight(mg) 9.1 3 Length(mm) 12/7/2012 Area(rectangles) page 5 GAC013 AE1 Wonsuk Kim (No Student ID#) Reference List Leeson, Neville. “Investigation of Gender Differences Among Year 6 Students when Estimating Measurements.” Southern Cross University. Southern Cross University, (n.d.). Web. 4 July 2012 Zaidi, Zeenat F. “Gender Differences in Human Brain: A Review.” The Open Anatomy Journal. Volume 2. (2010): p.37-55. Department of Anatomy, Faculty of Medicine, King Saud University, Riyadh, Saudi Arabia. Web. 4 July 2012. 12/7/2012 page 6