Please help!

[kissyfur]

Doesa anyone know what problems you would encounter in designing an experiment to compare individual and group therapy for children with phonological disorders?

[Catso]

Oh yes! What a nightmare!

[kissyfur]

Why is it that when people ask serious questions that no-one can actually answer them? Yet ask a question like whats the best place you've had sex and it gets about 100 answers. Is anyone able to help me, calling all educated people????

[Peter Pedant]

type I and type II errors
that is basically not detecting a difference when there is one through lack of number s and the other one....oh god I cant remember that one.

getting enough participants

constituency of the group, choosing them and not biasinng the result

assessing the group in a way that compares to assessing one

er thats about it...

[boobesque]

i dont think that you can get a real answer without first explaining your experimental design. how are you comparing them? tests before and after therapy or is it an observational experiment? children of the same age/gender/culture? do all children have the same disorder or severity of disorder? and so on. i can think of a million problems that you may come in to. like performing the experiment underwater may be considered unusual and would attract less participants. disecting them afterwards may seem immoral to some people etc