Monday, December 4, 2006

Re-calculating Cephalic Indexes based on frequency tables - Nyland

Re-calculated Cephalic indexes for Nyland Finnish and Swedish speakers (averages) based on L.Löfgren's cephalic index frequency table and comparison with the original data reported by Löfgren.

Re-calculated cephalic indexes with stricter values

under 75 = dolicho,
75-79.9 meso,
over 80 brachy
85-89.9 for hyperbrachycephalics.


Dolicho
Meso
Brachy
Hyperbra
Nyland Swe/men 12,87
51,9
29,52
5,72
Nyland Fi/men 6,52
45,1
37,5
10,32


On the original looser system the same values were
Dolichocephalic x- 75.9
Mesocephalic 76-80.9
Brachycephalic 81-85.4
Hyperbrachycephalic 85.5-x

Original distiribution of cephalic indexes by Löfgren.


Dolicho
Meso
Brachy
Hyperbra
Nyland Swe/men 25,24
52,38
20,48
1,92
Nyland Fi/men 13,59
48,91
30,44
7,072

The expected result of this re-calculation is that when the definition becomes stricter, the amount of pure dolichocephalics drops, adding them to the mesocephalic group, whereas some mesocephalics will be counted as brachycephalics and some brachycephalics into the hyperbrachycephalic group.

I will re-calculate values for each area of Nyland for both men and women and compare the results. Similar comparison will be made for each area (if data is available).

Sources - L.Löfgren - über die anthropologie der Bewohner von Uusimaa (Helsinki, 1937)

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