At the 2-year laboratory visit, children were presented with an 8 × 11 inch laminated page containing 30 colorful stickers: ten were targets (ladybugs); 20 were distractors (e.g., shiny stars, fish, balls). After pointing to and verbally labeling a target item, the experimenter instructed children to search and find all of the target items on the page; they had 1 minute to search. Successful performance on this task required the use of endogenous (goal-directed) orienting (see Rueda, Pozuelos, & Cómbita, 2015 for a discussion of attention processes). Trained research assistants later coded the task using the DVD recording of the laboratory session. The proportion of correctly identified targets to total possible targets (10) was calculated. Eight children were not administered this task because they did not participate in the 2-year lab visit; 76 were not administered this task because it was not yet in the protocol; 9 were not administered the task due to child refusal or emotional distress; 1 was unable to be coded due to recording error; 1 was voided due to maternal interference. Reliability coding for this
