Skip to main content
. Author manuscript; available in PMC: 2014 Mar 12.
Published in final edited form as: Dev Psychol. 2013 Jul 15;50(2):449–459. doi: 10.1037/a0033622

Table 3.

A) Summary of differences within each Cohort for all dependent measures. Bold denotes significant effects.
Wave Cohort Actual Age (years) Wave Cohort Actual Age (years) Fact Recall Fact Total Source Total Extra-experimental Errors Intra-experimental Errors Guessed/Knew Responses Unconditionalized Source Knowledge
1 4-year 4 2 4-year 5 <.001 <.001 .39 .11 .02 .07 .03
2 4-year 5 3 4-year 6 <.001 .07 .03 .27 .24 .15 .02
1 6-year 6 2 6-year 7 <.001 <.001 .01 .30 <.001 <.001 <.001
2 6-year 7 3 6-year 8 .04 .02 .11 .30 .15 .03 .01
1 8-year 8 2 8-year 9 <.001 <.001 .07 .03 .12 .26 .16
2 8-year 9 3 8-year 10 .02 .01 .31 .34 .06 .01 .02
B) Summary of differences between Cohorts tested at the same chronological age (i.e., 6 and 8 years). Bold denotes significant effects.
Wave Cohort Actual Age (years) Wave Cohort Actual Age (years) Fact Recall Fact Total Source Total Extra-experimental exp Errors Intra-experimental Errors Guessed/Knew Responses Unconditionalized Source Knowledge
3 4-year 6 1 6-year 6 .15 .12 .02 .23 .19 .12 .01
3 6-year 8 1 8-year 8 .46 .48 .03 .20 .14 .01 .04