The following content was dependent on the experimental condition. Children in the
no-demonstration condition were told, ‘‘Tina and Sophie both played with this, and now it’s your turn
and you can do anything you like.” All other children were told, ‘‘Tina and Sophie both played with
this, and we are going to watch what they did. Let’s watch what Tina, the adult [same order as they
were introduced], did when she played with the toy.” E then played the video clip twice. Half of the
children saw clips in which both of the models performed irrelevant actions. For the rake tool, the
irrelevant action was to tap the rake end at the front opening of the slot box four times. For the arrow
tool, the flat surface of the tool was slid down the back of the box four times. These actions were performed
after the token was inserted and before the relevant action. E then said, ‘‘So that is what Tina
the adult did. Now let’s watch what Sophie, the child, did when she played with the toy.” E then played
the child clip twice on the other monitor. The end of both clips showed a picture of the model paired
with a picture of the tool for the remainder of the experiment. Video clip duration ranged from 12 to
22 s depending on content. The two video clips shown to the same child (one from the adult and one
from the child) never differed by more than 4 s