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    (Original post by Aimen.)
    Guys in June 2012 paper in Q#1 (a) the examiner was looking for a method of distribution of random (quadrats/samples) and he didn't accept throwing them randomly for that. Can anyone tell me another method please? x)
    Explain that with tape draw a grid on the field and then randomly choose grids and place the quadrat on it
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    (Original post by dnac5)
    I wrote ethical issues that you should consider if the people you want to carry the experiment out with agree to take part and for safety that the mouth piece has to be disinfected before it goes round as they might pass infection
    Has anyone put anything similar :/
    If I thought of this, I would've written it!
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    (Original post by dnac5)
    I wrote ethical issues that you should consider if the people you want to carry the experiment out with agree to take part and for safety that the mouth piece has to be disinfected before it goes round as they might pass infection
    Has anyone put anything similar :/
    The mouthpiece thing is justified but dude if you choose those people it means they've agreed already xD
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    But don't trust me I'm crazzie!
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    Did everyone get 16 at 0.05, which was like 2.162??
    For random error I put that temperature fertilisation may have an effect on sex... hahah
    And did everybody calculate the DIFFERENCE for the vital capacity using many people, or just the MEAN volume?
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    (Original post by Aimen.)
    The mouthpiece thing is justified but dude if you choose those people it means they've agreed already xD
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    Yeah might be, but in a past paper I did about peoples teeth being tested this was an ethical implication so instead of leaving it blank I put that
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    (Original post by MisterRabbit)
    Did everyone get 16 at 0.05, which was like 2.162??
    For random error I put that temperature fertilisation may have an effect on sex... hahah
    And did everybody calculate the DIFFERENCE for the vital capacity using many people, or just the MEAN volume?
    I calculated percentage difference!
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    Anyone want to join a Biology IAL edexcel group. I know there's quite a few but if anyone's hasn't been added to one we could do one . PM your numbers
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    (Original post by dnac5)
    Yeah might be, but in a past paper I did about peoples teeth being tested this was an ethical implication so instead of leaving it blank I put that
    Lol that's a different case! In that case people didn't know their things were being used! but in this case people are actively participating!
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    (Original post by Aimen.)
    I calculated percentage difference!

    (Original post by MisterRabbit)
    Did everyone get 16 at 0.05, which was like 2.162??
    For random error I put that temperature fertilisation may have an effect on sex... hahah
    And did everybody calculate the DIFFERENCE for the vital capacity using many people, or just the MEAN volume?
    I used Increase in Vital capacity. Some did PERCENTAGE increase in vital capacity...idk which one is right
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    i did difference in VC (so increase basically)

    as for the critical value part i GOT 16 but then i was like the diff between the two bars is too small, so maybe I'm doing something wrong, and so randomly wrote critical value is greater than calculated and null is accepted. fml. bad luck
    i mean i knew it!!!!

    (Original post by xbuttermelon)
    I used Increase in Vital capacity. Some did PERCENTAGE increase in vital capacity...idk which one is right
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    (Original post by Aimen.)
    I wrote that not all eggs are viable?
    I know doesn't maKe sense xD
    I wrote something similar, haha! I wrote maybe one or two eggs may have been inactive... no clue if it works.
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    Also, there were many safety issues. They were: prolonged use of the respirometer may be harmful, the individuals participating cannot have any breathing/respiratory problems, epilepsy, or circulatory problems, soda lime is corrosive and should be handled with gloves and eye protection must be worn and the mouthpiece must be disinfected. But I wrote there were no significant ethical issues.
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    And I think the correct test would be spearman's rank correlation test. I also chose a scatter graph. My limitations were other factors like other types of exercise or activities done during the same time period could've affected the result, one group may not be representative of the entire population, the height, age, and sex, and thats all I remember for that part...
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    i drew a bar graph and chose spearmans rank test, will it be rejected ?
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    (Original post by imanarif)
    i drew a bar graph and chose spearmans rank test, will it be rejected ?
    one of them will be rejected, what kinf of experiment did you choose, to compare the VC between different frequencies of yoga classes or as the frequency of yoga classes increase, the VC increase ?

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    (Original post by xbuttermelon)
    I used Increase in Vital capacity. Some did PERCENTAGE increase in vital capacity...idk which one is right
    To be honest I dont think it matters as it makes sense either way.
    I did something stupid and wrote calculate means, but I put use one person with zero yoga sessions as a control... so they might be generous on that even though I didn't specify difference in VC.
    Does that make sense to you?

    Anybody doing chem on tuesday??
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    (Original post by MisterRabbit)
    Anybody doing chem on tuesday??

    me!

    Btw, I also put one person without yoga classes as control.
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    (Original post by xbuttermelon)
    me!

    Btw, I also put one person without yoga classes as control.
    Yeah same here

    Also doing chemistry on Tuesday, anybody was able to study effiently after this exam? I couldn't focus at all

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    (Original post by PlayerBB)
    Yeah same here

    Also doing chemistry on Tuesday, anybody was able to study effiently after this exam? I couldn't focus at all

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    Neither could I so used today to relax and 'free' my mind.
    How are you doing with the TM complex colours?
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    (Original post by MisterRabbit)
    Neither could I so used today to relax and 'free' my mind.
    How are you doing with the TM complex colours?
    Yeah same!!

    Doing okay I guess, but still mixing up between their colours, need to pull them off by Tuesday, wbu ?

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