1. ## T-scores!

Eek, so I'm not sure if this is the right forum, but it is technically statistics
Psychology student trying to work out a t-score, but I'm not really good at math, so I'm really struggling with this equation!

T = (5.65-511)√(29+77-2)22x77
over
√(29x16.5² + 77x18.57²)(29=77)

I think that's typed out right ):
If someone could help me, I would very grateful!!!!

2. ## Re: Help please on T-scores!! URGENT!!

looks like a two sample t statistic
you need to pool correctly and thats looks like a 29+77-2 below
and 29 should be a 28 and 77 a 76 in the pooled sample variance
BUT do explain where this is coming from
that would make my job easier

3. ## Re: Help please on T-scores!! URGENT!!

It was basically a re-creation of Brugger et al's sheep/goat effect
people were asked to iagine a dice rolled 66 times and to read out the numbers they imagined, then were asked to rate their belief in ESP on a scale of 1-6
1-2 are the 'sheep' 5-6 are the 'goats'
We then took the amount of time the participents said a number twice in a row
e.g 6, 2, 3,[COLOR=rgb(0, 0, 0)] 4, 4[/COLOR], 1

number of participants in group 1 = 29
number of participants in group 2 = 77
group 1 mean = 5.65
group 2 mean = 5.11
group 1 SD = 4.23
group 2 SD = 4.3
group 1 varience = 17.94
group 2 varience = 18.57

Thank-you for replying by the way, I've been at this for over 6 hours now ):

4. ## Re: Help please on T-scores!! URGENT!!

It's the same as the other post I replied to tonight
It's a s-pooled t situation