IAL Biology on may-june 2014

[Dr Bob]

No worries - glad to help
I think my freaking out has passed (for now!!!)
I mainly just work from the work we've done in class - we get drilled quite a lot by a mean teacher!!!

 

[nor]

No worries - glad to help
I think my freaking out has passed (for now!!!)
I mainly just work from the work we've done in class - we get drilled quite a lot by a mean teacher!!!

u shall thank god for having a teacher providing u with this imp. information (even if he was mean !!) i don't have any
anyway i have got another question in the null hypothesis is using significant correlation or difference depend on the test used later in the question or it just depend on the givens .i mean like it depends on the things we are comparing only
i'm just getting quite confused with that
thx in advance.

 

[Dr Bob]

wow, no teacher. That's tough.
Yes, if you are going to be using t-test or mann-Whitney, you would be looking at differences between two things, so your null hypothesis would be "there will be no significant difference..." But if you are eg changing temperature and looking at enzyme activity, this is looking for a correlation and the null hypothesis would be "there is no significant correlation between..." And use the spearman rank correlation test. Hope that makes sense.

 

[ola gaser]

is there a unit 3 AS thread ? as the exam is within a couple of days

 

[nor]

can someone explain to me P5 jan 2012 Q4)
thx in advance
appreciate a fast reply

any answer guys ??!!

 

[Student08]

Just quickly, as I'm freaking out a bit here about how close exams seem to be getting (!)... if you are comparing two populations/samples/experiments, you are probably going to be doing a t-Test or Mann-Whitney U test and you will be drawing a bar graph. If you are looking to see the efffect of a range of concentrations/temperatures etc, then it will be a Spearman rank correlation test and the graph will either be aline graph or a scatter graph (if there is actually no correlation at all). Chi-squared would be a bar chart too (if they ask for this) as you would be comparing different categories or groups. Someone else shout out if I'm talking rubbish

That's totally right! (as per what I know) Just to add a lil, for t-Test or Mann-Whitney U test, its more of used when there are 2 conditions i.e one in which a subject receives some kind of treatment and a other is more of a control condition in which they do not, or may, in short comparing a performance in the two conditions.

 

[aligatorviper]

howzz unit 6 prep guyss????

 

[nor]

hi everyone \ salams
check this scientific article discusssion i bet it would boost ur grade
credit goes to stafford Valentine
hope this would help
Pray to me everyone

 

[ghousia]

I need edexcel As notes for Physics,chemistry ,Biology . thanks

 

[ghousia]

I need answers For edexcel As level for my son. Thank you

 

[faisal100]

Guys can anyone upload the IAL biology papers units 1,2 and 3 with the marking scheme? Its actually found on edexcel's website but needs a username and password. I would be glad if anyone could get them and share it here.

 

[Nidhin]

Thanks a ton for your text books and notes.Did you do your IAL for may/june 14 ? How are your results ?

 

[Rahatara Sadique]

Difference between GCE A LEVELS and IAL?

 

[Dr Bob]

If you are doing exam papers for units 3 and 6, Then you are doing IALs. A Levels do a research paper for Unit 3 and a research project for Unit 6, as far as I know. These projects are then either sent off to be marked by Edexcel or marked by your school and checked by Edexcel. Hope that makes sense??

 

[Rahatara Sadique]

If you are doing exam papers for units 3 and 6, Then you are doing IALs. A Levels do a research paper for Unit 3 and a research project for Unit 6, as far as I know. These projects are then either sent off to be marked by Edexcel or marked by your school and checked by Edexcel. Hope that makes sense??

Thanks.

 

[Emily J.]

Does anyone have the core practical for Biology and chemistry WBIO3 AND WCH03??

 

[nor]

if any one have Edexcel practical materials created by Salters-Nuffield Advanced Biology please upload it