How possible is the development of an operational psychometric method to assess the presence of the 5-HTTLPR s allele? Equivocal preliminary findings

Table 4 Scale resulting from the application of weighting on the selected items of the TEMPS-A/5-hydroxytryptamine (5-HT) s allele subscale

Item	Criteria	Scoring
7D	I have always blamed myself for what others might consider no big deal	True = 1, False = 0
17D	I would rather work for someone else than be the boss	True = 1, False = 0
27C	I often blow up at people and then feel guilty about it	True = 1, False = 0
29C	My mood often changes for no reason	True = 1, False = 0
39C	I am the kind of person who can be sad and happy at the same time	True = 1, False = 0
55H	I love to be with a lot of people	True = 1, False = 0
57H	I am known to be generous, and spend a lot of money on other people	True = 1, False = 0
68I	I often feel on edge	True = 1, False = 0
69I	I often feel wound up	True = 1, False = 0
71I	I often get so mad that I will just trash everything	True = 1, False = 0
89A	Many people have told me not to worry so much	True = 1, False = 0
92A	I often feel jittery inside	True = 1, False = 0
94A	I often have an upset stomach	True = 1, False = 0
98A	When someone is late coming home, I fear they have had an accident	True = 1, False = 0
103A	I am, by nature, a very cautious person	True = 1, False = 0
105A	I easily get headaches when stressed	True = 1, False = 0
107A	I'm an insecure person	True = 1, False = 0

Index 1 (ss subscale): 2 × item 55 + 2 × item 57 + item 71 + item 89 + 2 × item 98 + item 103 + item 105 + item 107. Interpretation: score >6, highly likely for being an SS.
Index 2 (ll subscale): 2 × item 107 + 2 × item 17 + item 69 + item 7 + item 39 + item 94 + item 68 + item 29 + item 92 + item 27. Interpretation: index 2: score >3, highly unlikely for being an SS.
Index 3: If 1.19 × item 55 + 0.77 × item 57 + 0.94 × item 71 + 0.14 × item 89 + 1.14 × item 98 + 0.36 × item 103 - 0.02 × item 105 + 0.53 × item 107 - 4.38 <0 then it is highly unlikely to be an SS.
Index 4: If 0.09 × item 7 + 0.89 × item 17 + 0.34 × item 27 + 0.40 × item 29 + 0.79 × item 39 + 0.39 × item 68 + 0.26 × item 69 + 0.09 × item 92 + 0.26 × item 94 + 0.68 × item 107 - 0.91 <0 then it is highly likely to be either an SS or SL.

ISSN: 1744-859X