They all completed a timed and untimed standardized test of mathematics achievement.
Guy eBosmans, Bert eDe Smedt 2015, 'Insecure attachment is associated with math anxiety in middle childhood', Frontiers in Psychologyhttp://journal.frontiersin.org/Journal/10.3389/fpsyg.2015.01596/full. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The task was untimed, though most finished the task within an hour.
Anna Victoria Kasdan 2015, 'Please Don't Stop the Music: Song Completion in Patients with Aphasia', Frontiers in Psychologyhttp://journal.frontiersin.org/Journal/10.3389/conf.fpsyg.2015.65.00020/full. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)