If children fail to understand test instructions, measurements of their competence may be unfair and invalid. This is especially relevant for students with special educational needs (SEN) because they face greater challenges in comprehending instructions. Two interventions were designed to facilitate the comprehension of test requirements by…

We investigated how letter length, phoneme length, and consonant clusters contribute to the word length effect in 2nd- and 4th-grade children. They read words from three different conditions: In one condition, letter length increased but phoneme length did not due to multiletter graphemes (H"aus"-B"auch"-S"chach"). In…

This study investigated whether and, if so, how metacognitive knowledge can be assessed validly in students with special educational needs in a large-scale assessment like the German National Educational Panel Study. In total, 804 sixth-grade students including both regular school students attending the lowest track of secondary education…