Research and clinical resources

The PTT-20 Materials: A 20-item past tense task

The materials for this test are free and downloadable.

For a paper presentation of stimuli please download the following:

• PTT-20 Essential Information (PDF, 90KB)
• PTT-20 Response Sheet (PDF, 4KB)
• PTT-20 Line Drawing Stimuli (PDF, 1.88 MB)

For the same materials on e-prime (computer-based presentation) please download the following:

• How to set up the PTT-20 on your computer: Marchman Past Tense Task (PDF, 192KB)
• The Stimuli on e-prime (ZIP, 12.4MB)

Thank you for your interest in the PTT-20.