I finally found out through the use of SLP colors app (I think it is FREE) that my son is NOT color blind.!! He is non-verbal and severely affected by Autism. He has never had any color preference and never showed any interest in color discrimination during ABA. Our doctor , former SLPs, teachers and ABA therapists have tested multiple times for color blindness,. But his lack of cooperation and interest made it impossible. They concluded he was most likely color blind. Well, I think they are wrong!!!!! I used this app now on 8 different trials over three days and he got them all right! (providing you only did one "Pick a color" session. do two in row and he will just point to what ever is closer). Pretty cool app and so affordable. Simple interface and clear directions made it perfect for my son. Man, you could have saved me about $300 in specialist fees if I had this sooner. WELL DONE!
PS. For People who are giving this app 1*
This app is FREE. FREEEEEEEEE !!!! Time and energy into coding and creating an app to help your child and you complain. Maybe it is too easy for some of your children, but for others like my son, he needs the very simple interface. Be thankful that someone created this for your child to use, for FREE! Jeaz!