a high odds ratio an artefact ?

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a high odds ratio an artefact ?

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I try to explain regular use of the Internet by some socio-demographic
and social capital data from the European Social Survey. In a logistic
regression I got an odds ratio of 19.98 when explaining the regular
access to the Internet in Hungary by respondents with tertiary-level
educational attainment in comparison to people with below
secondary-level education. Before drawing far-reaching conclusions from
such a result I would like to know which methodological erreors might
create such a strong effect.

B       S.E.    Wald    df      Sig.    Exp(B)

2.99    0.34    77      1       0.00    19.92


In fact, for other European countries at the time of the survey
(2002/03) I get odds ratios of at least 1/4 for a country with an
advanced diffusion and a relatively excellent educational level, and up
to 1/10 in other North and Central European countries.

Thanks for any hints,
F.Thomas

--
..........................................
Dr. Frank Thomas
FTR Internet Research
93110 Rosny-sous-Bois
France
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Re: a high odds ratio an artefact ?

Ornelas, Fermin
I think it may be helpful if you provide additional statistics on the
parameters. What you have given by itself does not say much about the
statistical findings.

Fermin Ornelas, Ph.D.
Management Analyst III, AZ DES
Tel: (602) 542-5639
E-mail: [hidden email]

-----Original Message-----
From: SPSSX(r) Discussion [mailto:[hidden email]] On Behalf Of
Frank Thomas
Sent: Monday, April 30, 2007 2:25 PM
To: [hidden email]
Subject: a high odds ratio an artefact ?

I try to explain regular use of the Internet by some socio-demographic
and social capital data from the European Social Survey. In a logistic
regression I got an odds ratio of 19.98 when explaining the regular
access to the Internet in Hungary by respondents with tertiary-level
educational attainment in comparison to people with below
secondary-level education. Before drawing far-reaching conclusions from
such a result I would like to know which methodological erreors might
create such a strong effect.

B       S.E.    Wald    df      Sig.    Exp(B)

2.99    0.34    77      1       0.00    19.92


In fact, for other European countries at the time of the survey
(2002/03) I get odds ratios of at least 1/4 for a country with an
advanced diffusion and a relatively excellent educational level, and up
to 1/10 in other North and Central European countries.

Thanks for any hints,
F.Thomas

--
..........................................
Dr. Frank Thomas
FTR Internet Research
93110 Rosny-sous-Bois
France

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