Studiet undersøger kønsforskelle i læsehandicap gennem fire epidemiologiske undersøgelser. Resultaterne viser, at drenge har signifikant højere rater af læsehandicap end piger, både med og uden hensyntagen til IQ. Dette tyder på, at læsehandicap er mere udbredt blandt drenge.
Titel på undersøgelse:
Sex Differences in Developmental Reading Disability: New Findings from 4 Epidemiological Studies.
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Hele abstrakt på originalsprog:
This study revisits the claim from a 1990 article that higher rates of reading disability in boys stem from referral bias, summarizing past research and presenting new evidence from four epidemiological studies: Dunedin (989 participants, New Zealand, 1972-73), Christchurch (895 participants, New Zealand, 1977), ONS (5752 children, UK, 1999), and E-Risk (2163 twins, England/Wales, 1994-95). Reading performance and IQ were assessed across ages 5-15 using tools like the Burt Word Reading Test and Wechsler scales. Results consistently show higher reading disability rates in boys: Dunedin (21.6% boys vs. 7.9% girls, OR 3.19), Christchurch (20.6% vs. 9.8%, OR 2.38), ONS (17.6% vs. 13.0%, OR 1.43), and E-Risk (18.0% vs. 13.0%, OR 1.39), even when adjusted for IQ. Challenging the referral bias hypothesis, the study concludes that reading disabilities are significantly more prevalent in boys than girls across diverse populations.