Do you feel like you may have social-communicative difficulties or restricted interests that make your life more difficult? A substantial number of adults may have undiagnosed autism spectrum disorders.

The Ritvo Autism Asperger Diagnostic Scale-Revised (Ritvo et al., 2011) was designed as a tool to help clinicians diagnose autism among adults. It was designed to be administered in-person by a clinician. Below is an online version of this scale to help you assess whether you might want to go to a clinician for a diagnostic evaluation. Please keep in mind that this measure is only known to be an effective tool for helping in the diagnosis of autism spectrum disorders when administered in-person by a clinician. It is likely be less effective when taken online. Clinicians also use more than one test when diagnosing autism.

Receiving a high score on this measure does NOT mean that you meet the diagnostic criteria for autism. A high score could mean that you should consider contacting a clinician for further evaluation. Please contact Dr. Gillespie-Lynch ( if you would like information about where to go to be evaluated for an autism spectrum disorder.

Some life experiences and personality characteristics that may apply to you True now and when I was young True only now True only when I was younger than 16 Never true
1. I am a sympathetic person.
2. I often use words and phrases from movies and television in conversations.
3. I am often surprised when others tell me I have been rude.
4. Sometimes I talk too loudly or too softly and I am not aware of it.
5. I often don't know how to react in social situations.
6. I can "put myself in other people's shoes".
7. I have a hard time figuring out what some phrases mean, like "You are the apple of my eye".
8. I only like to talk to people who share my special interests.
9. I focus on details rather than the overall idea.
10. I always notice how food feels in my mouth. This is more important than how it tastes.
11. I miss my best friends or family when we are apart for a long time.
12. Sometimes I offend others by saying what I am thinking, even if I don't mean to.
13. I only like to think and talk about a few things that interest me.
14. I would rather go out to eat in a restaurant by myself than with someone I know.
15. I cannot imagine what it would be like to be someone else.
16. I have been told that I am clumsy or uncoordinated.
17. Others consider me odd or different.
18. I understand when friends need to be comforted.
19. I am very sensitive to the way clothes feel when I touch them. How they feel is more important than how they look.
20. I like to copy the ways certain people speak and act. It helps me appear more normal.
21. It can be very intimidating for me to talk to more than one person at a time.
22. I have to "act normal" to please other people and make them like me.
23. Meeting people is usually easy for me.
24. I get highly confused when someone interrupts me when I am talking about something I am very interested in.
25. It is difficult for me to understand how other people are feeling when we are talking.
26. I like having a conversation with several people for instance around a dinner table, at school or at work.
27. I take things too literally, so I often miss what people are trying to say.
28. It is very difficult for me to understand when people are embarrassed or jealous.
29. Some ordinary textures that do not bother others feel very offensive when they touch my skin.
30. I get extremely upset when the way I like to do things is suddenly changed.
31. I have never wanted or needed what other people call an "intimate relationship".
32. It is difficult for me to start and stop a conversation. I need to keep going until I am finished.
33. I speak with a normal rhythm.
34. The same sound, color or texture can suddenly change from very sensitive to very dull.
35. The phrase I've got you under my skin" makes me very uncomfortable.
36. Sometimes the sound of a word or a high pitched noise can be painful to my ears.
37. I am an understanding type of person.
38. I do not connect with characters in movies and cannot feel what they feel.
39. I cannot tell when someone is flirting with me.
40. I can see in my mind in exact detail things that I am interested in.
41. I keep lists of things that interest me, even when they have no practical use (for example sports statistics, train schedules, calendar dates, historical facts and dates).
42. When I feel overwhelmed by my senses, I have to isolate myself to shut them down.
43. I like to talk things over with my friends.
44. I cannot tell if someone is interested or bored with what I am saying.
45. It can be very hard to read someone's face, hand and body movements when they are talking.
46. The same thing (like clothes or temperatures) can feel very different to me at different times.
47. I feel very comfortable with dating or being in social situations with others.
48. I try to be as helpful as I can when other people tell me their personal problems.
49. I have been told that I have an unusual voice (for example flat, monotone, childish or high pitched).
50. Sometimes a thought or subject gets stuck in my mind and I have to talk about it even if no-one is interested.
51. I do certain things with my hands over and over again (like flapping, twirling sticks or strings, waving things by my eyes).
52. I have never been interested in what most of the people I know consider interesting.
53. I am considered a compassionate type of person.
54. I get along with other people by following a set of specific rules that help me look normal.
55. It is very difficult for me to work or function in groups.
56. When I am talking to someone it is hard to change the subject. If the other person does so, I can get very upset or confused.
57. Sometimes I cover my ears to block out painful noises (like vacuum cleaners or people talking too much or too loudly).
58. I can chat and make small talk with people.
59. Sometimes things that should feel painful are not (for instance when I hurt myself or burn my hand on a stove).
60. When talking to someone , I have a hard time telling when it is my turn to talk or listen.
61. I am considered a loner by those who know me best.
62. I usually speak in a normal tone.
63. I like things to be exactly the same day after day and even small changes in my routines upset me.
64. How to make friends and socialize is a mystery to me.
65. It calms me to spin around or to rock in a chair when I am feeling stressed.
66. The phrase, "He wears his heart on his sleeve does not make sense to me.
67. If I am in a place where there are many smells,textures to feel, noises or bright lights I feel anxious or frightened.
68. I can tell when someone says one thing but means something else.
69. I like to be by myself as much as I can.
70. I keep my thoughts stacked in my memory like they are on filing cards, and I pick out the ones I need by looking through the stack and finding the right one (or other unique way).
71. The same sound sometimes seems very loud or very soft, even though I know it has not changed.
72. I enjoy spending time eating and talking with my family and friends.
73. I can't tolerate things I dislike (like smells, textures, sounds or colors).
74. I don't like to be hugged or held.
75. When I go somewhere I have to follow a familiar routine or I can get very confused and upset.
76. It is difficult to figure out what other people expect of me.
77. I like to have close friends.
78. People tell me that I give too much detail.
79. I am often told that I ask embarassing questions.
80. I tend to point out other people's mistakes.