Literature search

Selection for inclusion based on title

PubMed

Search criteria

- January 1st 2000 till October 13th 2014

- English language

- MeSH terms: ADHD and Education

ADHD major area of interest + keyword

- (Special) education

- School(ing)

- Class(room)

- Homework

- IQ

- Student

- Study

- Academy

- Academic

- Training

- Primary/high school

- College

- University

- Graduation

Selection for inclusion based on abstract and eligibility phase

Exclusion:

- ADHD was not the major area of interest

- Describing etiology of ADHD.

- Focus on diagnosing of ADHD (in a specific setting).

- Descriptive studies or essays not containing data generation.

- Only factual representations of worse educational outcome.

- General needs of students with ADHD

- Interventions for teachers to handle ADHD

- Studies on abuse of medication by non-ADHD adolescents.

- Articles describing interventions for teachers and/or parents.

- Studies on drug-abuse by ADHD students.

- Study size below n = 15 in case of one study group, n = 30 in case of two study groups, and n = 45 in case of three study groups.

Inclusion:

- ADHD as major area of interest of the study, but comorbidity was not necessarily an exclusion criterion.

- Explanatory articles for the relationship between ADHD and poorer educational performance.

- Outcomes of a certain class-room intervention were included.

- Focus on for example working memory and ADHD.

- If no abstract was available.