The Revised Comprehensive Autistic Trait Inventory

Below is a list of statements relating to various personality traits, behaviours, and characteristics. Using the five response options select the option that best describes you. When responding, think about yourself both now and across your life. For items of a social nature, think about situations that do not involve very close friends or family members. Try not to spend too much time thinking about each choice.

I fiddle or play repetitively with objects or body parts (e.g., clicking pens or twirling my hair)*

Definitely Disagree

Somewhat Disagree

Neither Agree nor Disagree

Somewhat Agree

Definitely Agree

I like to stick to certain routines/rituals for everyday tasks*

Definitely Disagree

Somewhat Disagree

Neither Agree nor Disagree

Somewhat Agree

Definitely Agree

I expend a lot of mental energy trying to fit in with others*

Definitely Disagree

Somewhat Disagree

Neither Agree nor Disagree

Somewhat Agree

Definitely Agree

I am sensitive to bright lights*

Definitely Disagree

Somewhat Disagree

Neither Agree nor Disagree

Somewhat Agree

Definitely Agree

I prefer to do activities the same way (e.g., how I arrange food on my plate, or organise my clothes)*

Definitely Disagree

Somewhat Disagree

Neither Agree nor Disagree

Somewhat Agree

Definitely Agree

I observe people interacting (e.g., in movies or everyday situations) and try to imitate them when I need to socialise*

Definitely Disagree

Somewhat Disagree

Neither Agree nor Disagree

Somewhat Agree

Definitely Agree

I tend to rock my whole body or repetitively move body parts (e.g., tapping fingers, or bouncing my knee)*

Definitely Disagree

Somewhat Disagree

Neither Agree nor Disagree

Somewhat Agree

Definitely Agree

I enjoy social events (e.g., e.g., weddings or birthdays)*

Definitely Disagree

Somewhat Disagree

Neither Agree nor Disagree

Somewhat Agree

Definitely Agree

I make an effort to appear more sociable*

Definitely Disagree

Somewhat Disagree

Neither Agree nor Disagree

Somewhat Agree

Definitely Agree

I try to avoid social situations that involve face-to-face interactions with people I do not know well*

Definitely Disagree

Somewhat Disagree

Neither Agree nor Disagree

Somewhat Agree

Definitely Agree

My senses can be overloaded in some situations*

Definitely Disagree

Somewhat Disagree

Neither Agree nor Disagree

Somewhat Agree

Definitely Agree

Fiddling with objects (e.g., keys or soft toys) can help me calm down or collect my thoughts*

Definitely Disagree

Somewhat Disagree

Neither Agree nor Disagree

Somewhat Agree

Definitely Agree

I find it difficult to understand non-verbal cues (e.g., facial expressions, body language) of people I don't know well*

Definitely Disagree

Somewhat Disagree

Neither Agree nor Disagree

Somewhat Agree

Definitely Agree

I can have strong preferences about how my belongings are organised*

Definitely Disagree

Somewhat Disagree

Neither Agree nor Disagree

Somewhat Agree

Definitely Agree

Social interaction is easy for me*

Definitely Disagree

Somewhat Disagree

Neither Agree nor Disagree

Somewhat Agree

Definitely Agree

When interacting with other people, I spend a lot of effort monitoring how I am perceived*

Definitely Disagree

Somewhat Disagree

Neither Agree nor Disagree

Somewhat Agree

Definitely Agree

I find social occasions challenging, tiring, or stressful*

Definitely Disagree

Somewhat Disagree

Neither Agree nor Disagree

Somewhat Agree

Definitely Agree

I am sensitive to touch*

Definitely Disagree

Somewhat Disagree

Neither Agree nor Disagree

Somewhat Agree

Definitely Agree

I find it easy to sense what someone else is feeling (e.g., due to their facial expression or tone of voice)*

Definitely Disagree

Somewhat Disagree

Neither Agree nor Disagree

Somewhat Agree

Definitely Agree

I tend to pace or move around in a repetitive path*

Definitely Disagree

Somewhat Disagree

Neither Agree nor Disagree

Somewhat Agree

Definitely Agree

I feel discomfort when prevented from completing a particular routine*

Definitely Disagree

Somewhat Disagree

Neither Agree nor Disagree

Somewhat Agree

Definitely Agree

I find it helpful to plan how I will interact with others (e.g., things to share or questions to ask)*

Definitely Disagree

Somewhat Disagree

Neither Agree nor Disagree

Somewhat Agree

Definitely Agree

People who do not know me well tend to misunderstand me (e.g., people think I am angry or flirting with them)*

Definitely Disagree

Somewhat Disagree

Neither Agree nor Disagree

Somewhat Agree

Definitely Agree

I am sensitive to particular tastes (e.g., salty, sour, spicy, or sweet) or textures (e.g., slippery, coarse, sharp)*

Definitely Disagree

Somewhat Disagree

Neither Agree nor Disagree

Somewhat Agree

Definitely Agree

I engage in certain repetitive actions or activities when I feel stressed (e.g., playing with sensory toys or watching the same movie)*

Definitely Disagree

Somewhat Disagree

Neither Agree nor Disagree

Somewhat Agree

Definitely Agree

I do not use non-verbal cues intuitively in my interactions with others (e.g., eye gaze, facial expression, or hand gestures)*

Definitely Disagree

Somewhat Disagree

Neither Agree nor Disagree

Somewhat Agree

Definitely Agree

I prefer to do things in a certain way, or re-doing things until it is satisfactory to me*

Definitely Disagree

Somewhat Disagree

Neither Agree nor Disagree

Somewhat Agree

Definitely Agree

I feel confident or capable when meeting new people*

Definitely Disagree

Somewhat Disagree

Neither Agree nor Disagree

Somewhat Agree

Definitely Agree

I tend to suppress certain behaviours even though I find them soothing*

Definitely Disagree

Somewhat Disagree

Neither Agree nor Disagree

Somewhat Agree

Definitely Agree

Sensing what someone else is feeling can be stressful for me*

Definitely Disagree

Somewhat Disagree

Neither Agree nor Disagree

Somewhat Agree

Definitely Agree

A smell can make it hard for me to focus on anything else*

Definitely Disagree

Somewhat Disagree

Neither Agree nor Disagree

Somewhat Agree

Definitely Agree

There are certain repetitive actions that others consider to be characteristic of me (e.g., stroking my hair or talking about a particular subject)*

Definitely Disagree

Somewhat Disagree

Neither Agree nor Disagree

Somewhat Agree

Definitely Agree

Metaphors or figures-of-speech confuse me*

Definitely Disagree

Somewhat Disagree

Neither Agree nor Disagree

Somewhat Agree

Definitely Agree

I feel distressed when plans are changed*

Definitely Disagree

Somewhat Disagree

Neither Agree nor Disagree

Somewhat Agree

Definitely Agree

I find it difficult to make new friends or maintain friendships*

Definitely Disagree

Somewhat Disagree

Neither Agree nor Disagree

Somewhat Agree

Definitely Agree

I experience strong reactions to unexpected loud noises*

Definitely Disagree

Somewhat Disagree

Neither Agree nor Disagree

Somewhat Agree

Definitely Agree

I have experienced difficulty understanding someone else's point-of-view*

Definitely Disagree

Somewhat Disagree

Neither Agree nor Disagree

Somewhat Agree

Definitely Agree

I like to arrange items in particular ways (e.g., in rows, patterns, by colour, by size etc.)*

Definitely Disagree

Somewhat Disagree

Neither Agree nor Disagree

Somewhat Agree

Definitely Agree

I try to follow certain rules in order to get by in social situations*

Definitely Disagree

Somewhat Disagree

Neither Agree nor Disagree

Somewhat Agree

Definitely Agree

I am sensitive to flickering lights*

Definitely Disagree

Somewhat Disagree

Neither Agree nor Disagree

Somewhat Agree

Definitely Agree

I have certain habits that I find difficult to stop (e.g., biting/tearing nails, pulling strands of hair)*

Definitely Disagree

Somewhat Disagree

Neither Agree nor Disagree

Somewhat Agree

Definitely Agree

I have difficulty understanding the norms or unspoken rules of social situations*

Definitely Disagree

Somewhat Disagree

Neither Agree nor Disagree

Somewhat Agree

Definitely Agree

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