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Exams

Found 876 results

  1. Psychology IA Statistics Help (Tversky and Kahneman 1974) I chose to do my IA on the Tversky and Kahneman 1974 experiment on the anchoring bias. Basically, it was an independent samples design. In condition A, the participants were asked to estimate a numerical expression in ascending order 1 X 2 x 3 x 4 x 5 x 6 x 7 x 8. In condition B, it was presented in descending order 8 X 7 X 6 X 5 X 4 X 3 X 2 X 1. I already ran the experiment, but my problem is with getting the statistics. As it is independent measures, my teacher said to use the Mann-Whitney test. However, when I input my data, I get this notification: The sum of ranks for samples A and B combined does not equal [n(n+1)]/2. Please check your data entries. Do you have any suggestions for what to do? What test to use instead?? Or do I stick with the test and create ranges (that's what my teacher suggested)? Any help is appreciated. If you want to see the original experiment https://msu.edu/~ema/803/Ch11-JDM/2/TverskyKahneman73.pdf (Study 6: Extrapolation) *Btw the actual value was 40,320
  2. Hello everyone, I need help to chose a question for my HL History IA. I was thinking about doing the battle of la Drang for the topic. It would go something like to what extent was the battle of la Drang a victory for US forces? Is this a good question? If you have ideas on how to improve the question I'm all ears Thank you for your help
  3. Hi guys, I need some second opinions on my Biology HL IA, I'm doing an experiment on the effect of different carbon dioxide concentrations on the hormone ethylene's ability to ripen unripe pears. It's basically a spin-off of the simple "put-an-unripe-fruit-next-to-a-ripe-banana" experiment in which the ethylene hormone that is released by the ripe bananas helped accelerate the ripening of the fruit next to it, with the added twist of examining the effects of different carbon dioxide concentrations on this phenomenon. The ripeness of the pears would be measured using glucose extraction. 1) The lab at school has a CO2 sensor that I can use, but I'm a little loss in terms of trapping the carbon dioxide into an airtight container with the fruits for days. My source for CO2 is dried ice. Should I put the dried ice inside the container with the sensor, then wait until it reaches the concentration I need before taking the ice out and quickly placing my fruits inside? 2) Also, does anyone have a good, clear procedure on extracting glucose concentration from fruits? I found a couple, but some of the steps don't seem to work out for me in reality. They tell me weigh out approximately 1 gram of the fruit sample and then submerge it in 6 ml of distilled water. When I try to mash it up, the fruit sample is just too small. Is there something I'm doing wrong? Or is there a better procedure out there? All in all, do you think this is an appropriate Bio HL IA topic or should I reconsider? I have several other options, but this is the one that was approved. My teacher's fine but she's not the most helpful. Any advice would be appreciated! - Confused Bio student
  4. Hi, so my friend was doing her IA on a company called Godrej Interio. But she just now found out that she was collecting data from their franchisor, not from the company itself. The 2nd draft is submission in another 2-3 days. Can anyone suggest on how to tackle this even if she could extend the deadline by 3-4 days? That would be really helpful
  5. Hi, so my friend was doing her IA on a company called Godrej Interio. But she just now found out that she was collecting data from their franchisor, not from the company itself. The 2nd draft is submission in another 2-3 days. Can anyone suggest on how to tackle this even if she could extend the deadline by 3-4 days? That would be really helpful
  6. I’m choosing my subjects next March and I don’t know if it makes any sense for me to take business management HL AND economics HL. I know that economic is relatively easy so I’ll probably get a high grade and i’m Really good at business management in IGCSE. I really don’t know which HL I hefts to take and therefore economics HL or theatre HL are my only options. PLEASE HELP!!
  7. I am halfway through my summer holiday and I have not started writing my EE because 1. I'm very confused as to how to write it in the first place 2. I don't know where to start. My supervisor left my current school and did not really give me useful advice or insight while he was there, he did not even read the semi-draft that I gave him so I still don't know if what I've done is on track or not! I've read a lot of tips on how to write history EEs but most of them contradict each other so now I'm so confused as to how I should structure or approach my question. Any advice or guide will help
  8. is business management easier then econ (both at hl) honest answers please i need help
  9. What is the definition of ``Collective Mistake`` in WW1? And what are good books to understand easily about WW1?
  10. Hi, I have decided to do my EE on psychology, and could it be more into criminal psychology? I am asking here because my teacher was like I will check that and he never gave me the answer also do I have to conduct any experiment for my EE? My friend said that I have to do the experiment on which I will write EE (I know that I have to do an experiment for IA but what about EE)??
  11. Is it really late if I start doing past exams (timed) this Tuesday? I plan to do the 2016-2018 ones before the exam on the 9th. Do you think this is reasonable ? Because I’m gonna be done going through all the content by Monday I only have a couple sections left to cover and I wanna do exams after finishing everything
  12. I have chosen the following subjects: Polish A English B HL Chemistry Psychology Visual Arts I’ve got no idea which to choose on HL, and which ones on SL. What would you suggest? Which can be the most useful? Which are the hardest? Also, I want to study in UK, but I don’t even know what I want to study. Do you have some propositions of what I could study after these?
  13. So i sent off my directors notebook officially and i only just noticed that i didn't in text cite the lines from the play text that i used. I put all the quotes together and divided aganist my total word count and it makes 3 percent of the overall word count. I did however put the play text in my bibliography, will I be okay or should i be really scared?
  14. Not doing really great with the paper 2, is it still possible to pass if you pass the paper 1 and paper 3?
  15. Version 1.0.0

    2 downloads

    Note for D1 - Nutrition!
  16. Hi, I had planned to pretend to interview Bob Marley to ask about his attitude towards English, creoles and pidgins, and linguistic imperialism. The issue is that I am supposed to show how his use of language express his identity and he speaks in Jamaican English, so I am supposed to write his answers for the interview in Jamaican English too? Any ideas if I have understood this correctly? I would really appreciate any help!
  17. I want to do my IA on music (maybe modelling curve using chords) as I am a violinst and a struggling IB student. My interest in both maths HL Calculus and music has bought me till here to do a IA on it. But as of now I am lost about how to start and then go on. And how far is calculus involved and will the IA be a success. I have no idea how to look into this topic and what should I apply it to could I get any advice, resources or any procedures? Please clear my confussions.(much needed of surviving IB🙄)... Thank You!!
  18. Niji

    EE History

    Hi, I am currently in G10 and G11 is about to start in two months. I haven`t decided whether I`ll do EE in Japanese or History yet. I take both as HL. I actually wanted to do it in History because history is more interesting than Japanese to me. And my history teacher told me that the world average for History EE is C and I think it's pretty bad! Is it true that the average is C? And do you have any ideas about the topic for EE Japanese?
  19. I'm planning to do Economics at the UK for uni and was wondering which HL would be better for me, psych or history HL? My other subjects: HL - Math, Economics SL - Biology, Eng Lang Lit, French ab initio Thanks in advance!
  20. Hii My IA idea submission is due tomorrow and I have no idea what I really want to do, but came up with the idea of optimization using differential equations. I thought of reducing the surface area of packaging in different shapes like sphere and prisms, and calculate the minimum point (minima) through second order differentiation equation. I am also planning to then apply this to different real life examples like Toblerone triangle prism or something like that. Do you think this is too simple at the level of maths HL because it is just at the level of maths HL in the syllabus? I am ready to discard the idea if the maths involved is too easy for HL. Thanks xx
  21. Hello y'all, We've recently been doing course selections at school, and I've done research and know which subjects are "hard" and "easy". The thing is, one of the teachers asked me what my choices are, and when I informed her of them, she said that I was 100% going to burn out, even when I emphasized that I had an interest in all of these classes and was already in the high 90s. In addition, my classmates have called this selection "crazy". HL: Math, Chem, Bio, Psych SL: French B, Eng Lit I do sports every morning and some afternoons, but I wrote a schedule out (and included free time) and think that this is bearable as long as I follow it. Any thoughts?
  22. So I currently take HL Biology HL Economics HL Math SL Chinese B SL English Lit SL Visual Arts Semester reports came out recently and i ended up with a 6 in bio, 7 in Econ, 4 in math, 6 in Chinese, 5 in english, and a 6 in art. I also participate in a crazy amount of after school activities and face a LARGE amount of stress from my math class. As far as college, I plan on applying to highly competitive schools (UC Berkeley, Stanford, UChicago...) I currently have a low 4 in my HL math class and I know it's only going to go down from there. The only thing discouraging me from dropping math' classes is the fact that colleges will see that I dropped to an "easier" math class and will see me as a quitter or unintelligent. Which weighs more, me getting a higher grade in an "easier" class and my mental health or the possibility of getting rejected for dropping classes?
  23. hi... I took May 2018 exams with 4 HLs( maths,chemistry,physics and EngB) and got a 4,5,6,6 in each subject. I missed Nov 2018 exam so I am thinking of retaking( I mean I must..lol)only maths or both maths and chem in May 2019 I want to change HL maths to SL to get more points. Is it possible to change the level for retake?? Should I retake chem as well? my grades are maths hl 4 phy hl 6 chem hl 5 eng b hl 6 kor a sl 6 b&m sl 6 2 bonus =35 Will there be enough time to do the IAs and exam preparation for both maths and chem? or should I focus on maths?? Thank you!
  24. For Paper 2 in English A Lang & Lit HL, my class studied multiple poems written by Philip Larkin and Murakami's "Kafka on the Shore". My question is: in Paper 2, we have to refer to two texts that we have studied in class, so, if I choose to cover "Kafka on the Shore" and Larkin, should I talk about only one of his poems? Or can I talk about a number of his poems?
  25. Hi so I'm thinking of doing my IA on the Racial Equality proposal and am tossed up between these questions: To what extent did Australian opposition of the Racial Equality Proposal during the 1919 Paris Peace Conference impact its failure? What were the reasons for the failure of the Racial Equality Proposal during the 1919 Paris Peace Conference? What were the reasons for Woodrow Wilson's rejection of the Racial Equality Proposal during the 1919 Paris Peace Conference? To what extent was Billy Hughes opposition to the Racial Equality Proposal justified? To what extent were the goals of the Racial Equality Proposal achieved by the United Nations Charter of 1945.
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