So, as part of ManyBabies1, a number of labs brought in babies for a second test session. Despite a large infant sample (N=158), we saw no evidence of test-retest reliability in preregistered analyses. Correlations between looking time in session 1 and 2 was small (r=.09) (3/6)
ALT Figure showing the correlation between infant-directed speech preference in the first and second test session. There are 8 panels, each showing the correlation for a specific contributing lab and testing method. The correlations vary in their direction, but all correlations are small and non-significant.