Project Overview

In this ongoing project we investigate the test-retest reliability of the preferences measures used in ManyBabies1. Participating labs will bring in the tested babies for a second appointment retesting infants’ IDS preference looking time measure, allowing to compare test-retest reliability for three different methods that have been used to investigate preferential listening in infancy: The head-turn preference procedure, central fixation, and eye tracking.

Project Lead

Melanie Schreiner



  • Schreiner, M. S., Lippold, M., Soderstrom, M., Shukla, M., Bergmann, C., Frank, M. C., Hamlin, J. K., Gonzalez-Gomez, N. (2018, January 24). Assessing test-retest reliability of the infant preference measures. OSF Preregistration.

  • Schreiner, M. S., Zettersten, M., Bergmann, C., Frank, M. C., Fritzsche, T., Gonzalez-Gomez, N., Hamlin, J. K., Kartushina, N., Kellier, D. J., Mani, N., Mayor, J., Saffran, J. R., Shukla, M., Silverstein, P., Soderstrom, M., Lippold, M. (2022, December 22). Limited evidence of test-retest reliability in infant-directed speech preference in a large pre-registered infant sample. PsyArXiv. doi:10.31234/