Statistical analysis

ELAN
1

Hi,

Is it possible to do statistical analysis (i.e. statistical significance between tiers) with ELAN?

My data looks like this:
I have more than 10 video files that I annotated separately with Elan. For this I used two tiers:
Tier 1 contains a numerical score of the situation from 1-9. Tier 2 additionally divides the videos into two phases (phase a and phase b).
I would now be interested in whether, for example, phase a (tier 2) contains significantly more annotations from 4-6 (tier 1) than phase b does. Is this possible with Elan?

Can someone help me?
Thanks in advance.

2

Hi,

There is not a single function for that, but what you can do, is use the Search->Structured Search Multiple EAF…->Multiple Layer Search to find (the frequency of) all co-occurrences of e.g. ‘a’ on one tier and 4,5 or 6 on another, using a regular expression, and then do the same for ‘b’. Likewise it is possible to find the total number of occurrences of ‘a’-s and ‘b’-s etc.
Determining whether the difference between the phases is (statistical) significant has to be done separately.

-Han