Table 2 Behavior Codes.

Playfulness

It is an experience of playing. At this point, the function of the game is not the main part. The central part is to experience the playing. Playing games is helpful for children to develop their creativity, social abilities, and solve their daily life problems. According to Skaines, Rodger, and Bundy, children on the spectrum play games less than typically developed children (2016). Under which factors does playfulness increase is unknown.

Eye Contact

Individuals on the spectrum usually have difficulty in terms of eye contact. Not all individuals on the spectrum are the same. Some can easily have eye contact, but others can avoid it. The average length of the single periods of eye contact varied from 1.7 to 3.6 s (Hietanen, J.K et al., 2016). In this research, one single instance of eye contact is not considered an act of eye contact. However, its duration was taken into consideration. Eye contact was counted if the participant continued eye contact for more than 1.7 s (Hietanen, J.K et al., 2016).

Aggressive Behavior

This is a group of behavior that includes some harmful behaviors, such as hitting, kicking biting, verbal aggression, and injuring self or others. Michelle Turner mentioned that hitting can cause serious results, such as tissue damage and open wounds

(1999).

Refusal of Task

It is an expression of boredom (Jahromi, Meek, & Ober-Reynolds, 2012). As a result, individuals leave what she or he is doing as a task. This behavior is usually seen in the environment of classrooms. Refusal of task is the behavior of withdrawing from the task due to the emotional state of individuals. That means, it is regardless of the difficulty of the task. In this study, participants were asked to pick up one of the activities, such as drawing, or doing a puzzle. Each participant is observed while doing the selected activity under different colors of light. Observation helped perceive the

maintenance of the game and the act of play under certain colors of light.

Repetitive Movement

Repetitive movement is a set of behaviors that includes the movement of parts of the body or arms in a repetitive state (National Institute of Mental Health, 2013). For instance, repetitive movement can be a child’s constant clapping or spinning around. In the behavioral observation process, the color of light and repetitive movement relationship is perceived. Behavioral observation helped the researcher determine if a specific light color triggered or soothed repetitive movement.

Repetitive Speech (Echolalia)

Repetitive speech seems to affect individuals on the spectrum frequently. Individuals can often repeat some words or groups of words. In this study, repetitive speech and its frequency are observed. If repetitive speech is detected, its connection with the color of light is observed.