Gross motor delay: Refers to difficulties with large motor skills such as sitting, walking, running, and hopping.

Fine motor delay: Refers to difficulty with small hand movements such as feeding with a spoon, picking up small objects, doing fasteners, and writing.

Speech delay: There are two types of speech delay, receptive and expressive. Receptive speech requires the ability to process and understand language. Expressive speech is spoken language; it requires the strength and coordination of the muscles used for speech.

Cognitive delay: Refers to problems with learning, memory, and reasoning. Social/emotional delay refers to delayed social interactions with other children and adults. Some children have problems making eye contact, developing cooperative play, understanding and responding to others emotions appropriately, modulating their own emotions, and appreciating social boundaries.