When John Was an Infant, His Parents Noticed That He

Short Answer

When John was an infant, his parents noticed that he didn't achieve his developmental milestones on time. As he grew older, he seemed not to be able to do what his same-aged peers could do. Concerned, John's parents took him to get an IQ test. The psychologist reported that he scored about a 62 overall. Now at age five, John still cannot dress himself, tie his shoes, nor feed himself very well. John probably has been diagnosed with _____.