FIGURE 10.1 Percentages of young children showing fear of (a) the visual cliff and (b) dogs, noises, and a jack-in-the-box Children 1½ to 2 years of age show the most fear of the visual cliff (see Box 5.5, page 196). Children show the most fear of the jack-in-the-box and loud noises at about 1 year of age and the most fear of dogs at 1 to 1½ years of age. (Adapted from Scarr & Salapatek, 1970)