Development of the Multidimensional Introversion-Extraversion Scales

This page serves as documentation for the Multidimensional Introversion-Extraversion Scales.

Background

Introversion vs. Extraversion is probably the most well known of the individual differences. The MIES was developed using an empirical criterion keyed approaching using self reported identity of introvert or extrovert as the target. The exact question used is in the box below.

Do you identify as either an introvert or extravert?



Across a number of surveys, 206 items were tested against this criterion. The results of these are in the table below. The table shows for each item the mean difference between self-reported introverts and extraverts on that question (when rated on a 1-5 scale of agreement), and the number of introverts and extraverts in the sample used to calculate that difference.

Item Difference n(e) n(i)
I talk to a lot of different people at parties. -1.82 2544 1233
I love large parties. -1.55 1004 422
I am quiet around strangers. 1.545 2547 1238
I am the life of the party. -1.53 2552 1238
I don't talk a lot. 1.538 2550 1237
I start conversations. -1.52 2534 1230
I keep in the background. 1.499 2549 1236
I feel comfortable around people. -1.47 2548 1236
I don't mind being the center of attention. -1.33 2547 1235
I want a huge social circle. -1.30 1011 417
I can keep a conversation going with anyone about anything. -1.22 1015 420
I don't like to draw attention to myself. 1.219 2546 1236
I talk to people when waiting in lines. -1.13 1015 420
I sometimes speak so quietly people sometimes have trouble hearing me. 1.074 1017 421
I have to psych myself up before I am brave enough to make a phone call. 1.059 1013 420
I have trouble finding people I want to be friends with. 1.058 1014 421
I would enjoy being a sports team coach. -1.00 1015 418
I prefer to socialize 1 on 1, than with a group. 0.992 1016 421
I am a flamboyant person. -0.98 1010 419
I prefer to eat alone. 0.977 1015 419
I have little to say. 0.977 2551 1235
I would be pleased if asked to speak at a funeral. -0.97 1003 414
I would have difficulty describing myself to someone. 0.966 1001 411
I am good at making impromptu speeches. -0.96 1017 419
I naturally emerge as a leader. -0.96 1017 421
I am a bundle of joy. -0.95 1012 420
I would never go to a dance club. 0.948 1006 423
I would never audition to be on a game show. 0.923 1011 419
I reveal little about myself. 0.915 1015 418
I am not much of a flirt. 0.913 1016 421
I'd like to be in a parade. -0.89 1014 421
I really like dancing. -0.87 933 455
My life would not make a good story. 0.844 1005 414
I spend hours alone with my hobbies. 0.842 1013 420
I have a strong personality. -0.82 1012 419
I do not like to get my picture taken. 0.820 1016 421
I act wild and crazy. -0.80 1014 420
I find it very hard to tell people I find them attractive. 0.803 1003 425
I feel healthy and vibrant most of the time. -0.79 1003 424
I am interested in people. -0.79 2539 1234
I often feel blue. 0.787 2545 1236
I am hesitant to give suggestions. 0.778 1000 412
I do not care about sports. 0.769 934 454
I tire out quickly. 0.768 1001 414
I love excitement. -0.76 1015 419
I am spontaneous. -0.74 1017 419
I like formal occasions. -0.72 835 405
I have leadership abilities. -0.72 1005 422
I never tell people the important things about myself. 0.726 1003 414
I am good an entertaining children. -0.69 840 405
I am involved with my community. -0.69 838 402
I don't make eye contact when I talk with people. 0.687 838 404
I am not really interested in others. 0.684 2549 1236
When I was a child, I put on fake concerts and plays with my friends. -0.67 935 455
I am never at a loss for words. -0.67 1002 424
I hate people. 0.672 1001 425
I prefer individual sports to team sports. 0.666 935 456
I am always in the moment. -0.66 835 404
I avoid going to unknown places. 0.661 1001 413
I am excited by many different activities. -0.65 1016 420
Going to the doctor is always awkward for me. 0.651 1003 414
I have not kept up with my old friends over the years. 0.648 1002 414
I have not been joyful for quite some time. 0.645 1005 413
I am happy with my life. -0.63 1006 424
I hate to ask for help. 0.636 1003 415
I like pranks. -0.63 1005 424
I was an outcast in school. 0.634 1006 422
I would enjoy being a librarian. 0.633 1003 424
I laugh a lot. -0.62 1001 423
I mostly listen to people in conversations. 0.629 1016 420
I am brave. -0.62 834 404
I make people feel at ease. -0.62 2541 1230
If I were to die, I would not want there to be a memorial for me. 0.617 1002 414
I would hate living with room mates. 0.616 1016 420
I make big physical movements whenever I get excited. -0.61 837 405
I work out regularly. -0.61 1002 424
I am a high status person. -0.61 1003 423
I would have to be lost for a very long time before asking help. 0.593 931 455
I take lots of pictures of my activities. -0.58 935 455
I have wanted to be a stand-up comedian. -0.58 1004 423
I would go surfing regularly if I lived on a beach. -0.58 1003 424
My parents know nothing about my love life. 0.574 934 454
I love to do impressions. -0.56 1003 413
I am able to stand up for myself. -0.56 1005 423
I spend most of my time in fantasy worlds. 0.538 2175 1148
I often feel lucky. -0.53 2178 1145
I tend to be admired by others. -0.53 835 406
I have a monotone voice. 0.534 835 403
I hate shopping. 0.524 1001 413
I would like to try bungee jumping. -0.52 840 405
I mostly listen to people in conversations. 0.509 932 456
I am a touchy feely person. -0.50 835 402
I love to brainstorm with others. -0.49 838 404
I am usually not single. -0.49 1002 421
I never leave the door to my room open. 0.491 936 453
I would like it if my friends played a prank on me. -0.49 934 455
I would be interested in going on a blind date. -0.47 836 405
I can talk others into doing things. -0.46 933 452
I make a lot of hand motions when I talk. -0.46 934 455
I ask people for movie recommendations. -0.46 932 455
I enjoy physical exercise. -0.46 936 454
I am bad at remembering names. 0.462 934 456
I am not interested in other people's problems. 0.456 2546 1236
I'd rather live in the arctic than the tropics. 0.455 1003 414
I would be interested in sky diving. -0.44 936 454
Fear of being taken advantage of keeps me from being more trusting. 0.441 1002 412
I am uncomfortable in elevators. 0.435 1004 415
I would never go riding down a stretch of rapids in a canoe. 0.428 936 453
I take a long time to answer emails or text messages. 0.427 1004 425
I seldom feel blue. -0.42 2540 1232
I find most people boring. 0.423 1002 425
I would be very embarrassed if someone learned all my secrets. 0.411 1004 414
I try to control and hide my anger. 0.404 1002 413
I get stressed out easily. 0.401 2542 1235
I like swimming. -0.39 838 404
I think it is rude to read a book at a party. -0.39 1003 425
I wanted to be an author when I was a child. 0.396 2173 1147
I can‘t stand aggressive people. 0.396 839 405
I listen to rap music. -0.39 2176 1147
I take time out for others. -0.38 2541 1234
After I finish a conversation, I spend much more time thinking about things I should have said. 0.384 838 405
I believe in a universal power or God. -0.37 1004 421
I put a lot of work in to it when I dress up in costume. -0.37 931 454
I think ‘that is what she said‘ jokes are funny. -0.37 833 405
I like to go camping and hiking. -0.36 837 406
I get an empty feeling after I finish a good book, movie, or game. 0.357 2179 1148
I listen to country music. -0.35 2176 1146
I am interested in the Dungeons & Dragons role playing game. 0.346 2180 1146
I worry about things. 0.342 2549 1238
I prefer to eat at expensive restaurants. -0.33 1003 414
I love to travel. -0.33 840 404
I like to drink alcohol. -0.33 1005 423
I would enjoy a hot air balloon ride very much. -0.32 1002 412
I trust in luck. -0.32 2171 1148
I have excellent ideas. -0.32 2540 1235
I prefer to vacation on the beach rather than the mountains. -0.32 1003 414
I am relaxed most of the time. -0.32 2542 1235
I like to gossip. -0.32 2179 1146
I am nostalgic about high school. -0.32 931 456
I feel an incredible desire to travel the world. -0.32 839 405
I like to wrestle with people. -0.31 933 456
I get upset easily. 0.309 2541 1230
I have wished that I could become self sufficient; living off the land, making everything I use myself. 0.304 833 404
I want to own expensive things. -0.30 2174 1150
I could never trust someone who embarrassed me in public once. 0.303 1004 414
I like really, really fast music. -0.29 1003 425
I think it is rude to call people on the phone late at night. 0.295 937 455
I feel like crying when I get in trouble. 0.291 839 402
I am full of ideas. -0.29 2546 1237
I feel others' emotions. -0.28 2549 1235
I have frequent mood swings. 0.284 2537 1231
I get irritated easily. 0.284 2543 1236
I shower every day. -0.28 1005 424
I sympathize with others' feelings. -0.27 2544 1236
I have dreamed of being a politician. -0.27 2177 1147
I get embarrassed when someone does something stupid. 0.273 934 453
I have a bad memory for faces. 0.272 1001 412
I do not listen to pop-music at all. 0.269 2171 1148
I spend time reflecting on things. 0.266 2546 1232
I often feel bored. 0.253 2170 1145
I am easily disturbed. 0.241 2549 1235
I would prefer watching a comedy show to visiting a museum. -0.23 936 456
I make self-deprecating jokes all the time. 0.232 1005 422
I think people should not talk on their cellphones on the bus. 0.216 935 451
When I get sick, I want to stay in bed. 0.211 2178 1149
I am comfortable with farting in front of people. -0.20 934 456
I liked to climb trees as a child. -0.20 1004 413
I get chores done right away. -0.20 2539 1235
I want to get my teeth whitened. -0.19 936 454
I played a lot of hide-and-go-seek as a child. -0.18 1002 413
I get excited when I argue. -0.18 839 403
I do not use slang when I speak. 0.182 2176 1148
I change my mood a lot. 0.171 2544 1232
I follow a schedule. -0.17 2539 1235
I leave my belongings around. -0.16 2545 1234
I listen to classical music. 0.166 2179 1150
I would be interested in working as a police officer. -0.16 2181 1149
I shirk my duties. 0.159 2545 1233
I do not have a good imagination. 0.158 2538 1229
I like to work with computers. 0.153 2178 1148
I like to write. 0.152 2173 1144
I make a mess of things. 0.150 2544 1237
I use difficult words. 0.144 2541 1233
I feel little concern for others. 0.134 2549 1238
I am quick to understand things. -0.11 2542 1232
I never watch movies alone. -0.11 837 402
I like order. 0.094 2545 1235
Loud music helps me study. -0.09 839 407
I am consciously aware of the facial expressions I make when I talk with people. -0.09 839 405
I wanted to be an astronaut when I was a child. 0.090 2182 1145
I have a vivid imagination. -0.08 2544 1235
I listen to electronic dance music. -0.08 2174 1147
I am always prepared. -0.08 2536 1229
I have a soft heart. -0.08 2538 1234
I would remove my capacity to feel angry if I could. 0.075 2173 1147
I would be interested in working as a therapist. -0.07 2177 1150
I am exacting in my work. -0.07 2542 1234
I enjoy watching terrible movies to laugh at them. -0.06 2178 1148
I am interested in reptiles. 0.058 2171 1146
I pay attention to details. 0.052 2549 1235
I have difficulty understanding abstract ideas. -0.05 2547 1239
I have a rich vocabulary. 0.051 2541 1232
I listen to folk music. 0.042 2172 1144
I often forget to put things back in their proper place. 0.015 2550 1237
I am not interested in abstract ideas. 0.007 2542 1235
I insult people. 0.000 2547 1239

A cutoff of 0.5 was used as basis for inclusion in the MIES.