SORRY - IGNORE LAST EMAIL - DATA WILL BE AT TWO POINTS IN TIME, NOT FOUR.
Hi,
Does anyone know which statistical test I would need for the following:
I have two independent groups: One group is before the service redesign; The second group is after the service redesign. Both groups will provide data at 2 points in time over a 12-month period.
I need to know the statistical test I will use in order to calculate how many participants I need per group (I am using Gpower to do this).
I will be trying to determine differences between the groups.
Thank you for your help,
Nicola
________________________________________
From: Davies, Nicola
Sent: 26 October 2010 22:44
To:
Subject: Power Calculations and Statistical Tests
Hi,
Does anyone know which statistical test I would need for the following:
I have two independent groups: One group is before the service redesign; The second group is after the service redesign. Both groups will provide data at 4 points in time over a 12-month period.
I need to know the statistical test I will use in order to calculate how many participants I need per group (I am using Gpower to do this).
I will be trying to determine differences between the groups.
Thank you for your help,
Nicola
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