Table 2: Behavior categories included in type of interaction.
Initiates Joint Attention (IJA)
• Alternates gaze: Looks at object - Looks at partner's face/eyes - Looks at same object • Points: Extends index finger in direction of an object • Shows: Holds out a toy to partner but does not permit her to take it. • Offers: Puts a toy into partner's hand spontaneously and permits her to take it. |
Responds to Joint Attention (RJA)
• Follows interest: Looks at the direction indicated by partner's pointing, giving, or showing. • Offers after request: Puts object into partner's hand and permits her to take it, after partner's request. |
Simple Functional Play (SFP)
• Conventional acts on a single object accompanied by relevant sounds (e.g. for chewing or car noise). • Conventional acts on object directed to self (e.g., brushing one's hair) |
Elaborated Functional Play (EFP)
• Conventional acts on object directed to partner (e.g., holding toy telephone to the mother's ear). • Conventional acts on object directed to doll (e.g., placing a spoon to a doll's mouth) • Conventional use of two or more objects in combination (e.g., stirring a spoon in a pot). |
Symbolic Play (SP)
• Doll as agent: Plays with a doll as if it could act as an independent agent (e.g., could walk) • Substitution play: Uses an object as if it was a different object (e.g., substituting a ball for food to feed a doll) • Imaginary play: Creates objects or people that are not present in the immediate environment (e.g., talking to someone on the phone). |
Solitary Play (SOLP)
• Looks around • Acts on an object without addressing the partner. |