This study tried to control for all the confounding factors, so it looked at children who were equally intelligent and from the same social-class background, so it seemed as if it was the reading which really helped those children go on and score better on those school tests later in their lives.
Ky studim u përpoq të kontrollonte të gjithë faktorët, kështu që studioi fëmijë njëlloj të zgjuar dhe me të njëjtin bagazh social. Dukej sikur leximi i ndihmoi këta fëmijë të dalin mirë në provimet e mëvonshme.