1 or 2 tailed? Watch

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alio
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#1
Report Thread starter 15 years ago
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is this hypothesis 1 tailed r 2 tailed. cud some1 plz tell me coz im doing psychology coursework and cant work out whether its directional r not.

' the younger the age group the more physical statements will be given whereas the older the age group the more psychological the statements given will be.

thanxs. its just that i originally put 1 tailed but my degrees of freedom are 2 and apparantly these dont match.
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byakugan_neji
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Well, that's actually 2 one-tailed hypotheses you have included.

It's really easy:

- one-tailed hypotheses specify a certain direction. Eg. reading more books will improve children's reading abilities.

- two-tailed hypotheses don't specify and that it could go either way. Eg. reading more books will affect children's reading abilities.
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alio
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(Original post by byakugan_neji)
Well, that's actually 2 one-tailed hypotheses you have included.

It's really easy:

- one-tailed hypotheses specify a certain direction. Eg. reading more books will improve children's reading abilities.

- two-tailed hypotheses don't specify and that it could go either way. Eg. reading more books will affect children's reading abilities.
thanks is my hypothesis ok though?
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byakugan_neji
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(Original post by alio)
thanks is my hypothesis ok though?
Well, I think you're being too specific and people may assume that you are certain that it will go that way. It's like saying 'the faster the car, the quicker it takes to get there whereas the slower the car, the longer it takes to get there'. So basically, you are just repeating yourself.
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alio
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Report Thread starter 15 years ago
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(Original post by byakugan_neji)
Well, I think you're being too specific and people may assume that you are certain that it will go that way. It's like saying 'the faster the car, the quicker it takes to get there whereas the slower the car, the longer it takes to get there'. So basically, you are just repeating yourself.
ok thanks for ya help
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