Summary

This post reports on data about the personality psychology of EAs from the 2018 EA Survey.

• We observe some differences between our EA sample and the general population:
  • Younger male EAs and older female EAs score higher on conscientiousness compared to the general population.
  • Male EAs score lower on neuroticism than the general public.
  • EAs score high on need for cognition, and relatively higher than a US and UK general population sample.
    • Though this may be partially due to demographic differences between the samples.
  • EAs appear to be slightly lower in empathic concern than a sample of US undergraduates.
    • But this seems attributable to demographic differences between the samples, in particular gender.
  • Small differences were observed regarding maximization and alternative search compared to other samples.
  • Generally, the lack of population norms of various personality traits makes comparisons between samples difficult.
• Overall, we found only small associations between personality, donation behavior and cause prioritization.
  • Openness and alternative search were both found to be negatively associated with the amount donated.
  • These associations were found controlling for sex, age, and individual income, and survived corrections for multiple comparisons.
  • Perspective taking was negatively associated with prioritizing longtermist causes, meaning those who score lower on these traits were more likely to prioritize longtermist causes. 
  • This association was found controlling for sex and age, and survived corrections for multiple comparisons.

Introduction

There has been considerable interest in EA and personality psychology (e.g. here, here, here, here, here and here).

In the 2018 EA Survey, respondents could complete an extra section of the EA Survey that contained several personality measures. A total of 1602 respondents answered (some of) the personality questions. These included the Big Five, Need for Cognition, the Interpersonal Reactivity Index, and a scale to assess maximization. 

We report these results for others to gain a better understanding of the personality of members of the EA community. Additionally, personality traits have been found to be predictive of various important outcomes such as life, job, and relationship satisfaction. In the context of the EA community, prediction of donation behavior and cause prioritization may be of particular interest.^[1]

Big Five

Respondents were asked to indicate how much they agree or disagree with whether a pair of personality traits applies to them, on a 7-point Likert scale ranging from ‘Strongly disagree’ to ‘Strongly agree’. The specific personality traits were drawn from the Ten Item Personality Inventory (TIPI) and consisted of:

• Extraverted, enthusiastic.
• Critical, quarrelsome.
• Dependable, self-disciplined.
• Anxious, easily upset.
• Open to new experiences, complex.
• Reserved, quiet.
• Sympathetic, warm.
• Disorganized, careless.
• Calm, emotionally stable.
• Conventional, uncreative.

Big Five score distributions

The plots below show the distribution of responses, including the sample size, to these questions in our sample. Each individual response is an average of the, in this case two, personality items. We show distributions for each individual item in the Appendix.

However, personality scores have been found to differ based on gender and age (Schmitt et al., 2008; Donnellan et al., 2008; Lehmann et al., 2013). As such, it is common for the population norms for personality measures to be split based on these groups. Otherwise, differences between EA Big Five scores and the general population, could simply reflect the fact that the EA population is younger and more male than the general population.

In the plots below we show how the Big Five scores in our sample differ from the TIPI population norms^[2]. It’s important to note that our sample size is very small for the older age brackets, which is reflected in the wider confidence intervals.

These results suggest that:

• Younger male EAs and older female EAs score higher on conscientiousness compared to the general population

• Male EAs score lower on neuroticism^[3] than the general public

Comparing EA Survey 2018 to AE Studio’s survey

AE Studio recently reported the results of a survey of 250 EAs. Their survey also included a Big Five personality measure, enabling a comparison between their results and ours. Compared to AE Studio’s survey, we found lower levels of agreeableness, extraversion, and neuroticism among EAs.^[4] However, as noted above, it is important to note that these differences could simply reflect differences in the composition of our respective samples or our use of different measures of the Big Five.

Need for Cognition

Respondents were also asked to indicate their agreement with four statements assessing their need for cognition. Specifically, respondents were asked to respond to the following statements:

• I really enjoy a task that involves coming up with new solutions to problems.
• Learning new ways to think doesn't excite me very much
• The notion of thinking abstractly is appealing to me.
• I would prefer a task that is intellectual, difficult, and important to one that is somewhat important but does not require much thought.

Need for cognition score distribution

The results show that EAs (N = 1511) score high on need for cognition with an average of 4.35.

We are not aware of any population norms for the need for cognition, but we can compare the results to data from a study in which they administered an 18-item need for cognition questionnaire to participants from the United States and the United Kingdom, which includes the 4 items that were used in the EA Survey. 

Using this data, we see that EAs score higher compared to both samples from the general population. This difference is likely to be partially due to demographic differences between the samples, such as the EA sample consisting mainly of male respondents, who also tend to score higher on the need for cognition. Though the relatively large difference between the difference samples is unlikely to be fully due to this demographic difference.

Interpersonal Reactivity Index

The Interpersonal Reactivity Index (IRI) is a measure of empathy and consists of multiple components, including ‘empathic concern’, ‘personal distress’, and ‘perspective taking’^[5]. To assess these components, respondents were asked how well certain statements about their thoughts and feelings in a variety of situations describe them, using a 5-point Likert scale. The statements consisted of:

• Empathic concern
  • I often have tender, concerned feelings for people less fortunate than me.
  • I am often quite touched by things that I see happen.
• Personal distress
  • In emergency situations, I feel apprehensive and ill-at-ease.
  • I sometimes feel helpless when I am in the middle of a very emotional situation.
  • When I see someone who badly needs help in an emergency, I go to pieces.
• Perspective taking
  • When I'm upset at someone, I usually try to "put myself in his shoes" for a while.
  • Before criticizing somebody, I try to imagine how I would feel if I were in their place.

IRI score distributions

Unfortunately, we’re not aware of any recent population norms so we cannot compare our results to see whether the EA sample scores particularly low or high on any of these traits. However, there is research on dispositional empathy among U.S. undergraduates from 1979 to 2018. The graph below shows the average personality scores of the IRI across the years, with horizontal lines indicating the average scores of EAs from our survey.  

Compared to these samples (U.S. undergraduates), EAs seem to show similar levels of perspective taking and personal distress, but lower levels of empathic concern. Note that here, too, the difference may be explained by demographic differences. This is particularly likely in this case because there are large trait differences on this scale between various demographics, such as gender.

Maximization

Maximization, the tendency to want to make the best choice rather than making a choice that’s good enough (i.e., satisficing), was assessed with five items from the Maximizing Tendency Scale (MTS-7). We also assessed a maximization strategy, called alternative search, with items from the Alternative Search Scale of the Maximization Inventory. Specifically, the following items were used:

• Maximization tendency:
  • I don’t like having to settle for good enough.
  • I am a maximizer.
  • No matter what I do, I have the highest standards for myself.
  • I will wait for the best option, no matter how long it takes.
  • No matter what it takes, I always try to choose the best thing.
• Alternative search:
  • I can’t come to a decision unless I have carefully considered all of my options.
  • I take time to read the whole menu when dining out.
  • I find myself going to many different stores before finding the thing I want.
  • When shopping for something, I don’t mind spending several hours looking for it.
  • I take the time to consider all alternatives before making a decision.

Maximization score distributions

We could not find any population norms regarding the maximizing tendency trait, but we did find one study in which they report an average of 3.52 among 335 adults from the US, which is close to the average score we observed in the EA sample (3.47, 95% CI [3.43, 3.50]). 

We also could not find any population norms for the alternative search trait, but we could obtain the average score using data from the paper which introduced the scale. They recruited 828 undergraduate students from Ohio State University and observed an average score of 3.18 (95% CI [3.15, 3.21]), which is slightly lower than the average score observed in the EA sample (3.26, 95% CI [3.22, 3.31]). 

Personality traits and donations

Respondents were asked how much they had donated the year before (in 2017). We converted the donation amounts to dollars and classified respondents as having donated or not (i.e., donated more than 0 dollars or not). We then analyzed whether personality traits could ‘predict’ whether the respondent had donated or not, as well as the relationship between traits and the amount donated among respondents who had donated.

We found statistically significant relationships^[6] of openness to experience and empathic concern on having donated or not. Openness to experience was negatively associated with having donated, meaning respondents with a higher score on openness to experience were less likely to have donated. In contrast, empathic concern was positively associated with having donated or not. Conscientiousness was also positively associated with having donated, and alternative search negatively, but these relationships were no longer statistically significant after controlling for individual income, gender, and age. Note that in these analyses, and the ones below, we corrected for multiple comparisons.

As for the relationship between personality traits and the size of the donations, we found that openness to experience, alternative search, and need for cognition were each negatively correlated, when controlling for age, sex and income. There were several other significant correlations, but these did not hold when controlling for age, sex, and income.

Personality traits and cause prioritization

As in any EA Survey, respondents were also asked to give an indication of how much they think each of several causes should be prioritized by EAs. We used these responses to classify respondents as having neartermist or longtermist preferences. Specifically, we calculated the average prioritization of neartermist causes (Global poverty, Mental health) and longtermist causes (Reducing risks from artificial intelligence, Existential risk (other than AI, biosecurity, or nuclear security), Biosecurity and pandemic preparedness, Nuclear security). We then subtracted the average prioritization of neartermist causes from the average of longtermist causes. Positive scores on this measure therefore indicate a prioritization of longtermist causes while negative scores indicate a prioritization of neartermist causes.

We then correlated this measure with the various personality scores and found it was negatively correlated with both empathic concern, perspective taking, and alternative search, albeit rather weakly. Several other correlations were also found, but these were not statistically significant after controlling for age and sex.

Appendix

Big Five item distributions

Patterns diverged for some of the individual items in the scales in ways which may be of interest.^[7] 

For example, EAs scored relatively highly on the Agreeableness item ‘Sympathetic, warm’, but responses were more mixed for the reversed item ‘Critical, quarrelsome’ with a large number of EAs tending to agree with this item. This seems to match common impressions of the EA community.

Alternative IRI comparison

In the main text we compared the IRI scores of the full EA sample to the scores of U.S. undergraduates from 1979 to 2018. Below we compare the scores of U.S. undergraduates to the scores of EA respondents from the United States who are currently a full or part time student pursuing an undergraduate degree. This also shows relatively low empathic concern scores and similar personal distress scores, but higher perspective taking scores. Note, however, that the confidence intervals are quite wide on this much smaller sample and are likely to be susceptible to additional differences between the samples (e.g., gender).

Acknowledgments

This research is a project of Rethink Priorities. It was written by Willem Sleegers and David Moss. Thanks to Oscar Delaney for helpful feedback. If you like our work, please consider subscribing to our newsletter. You can explore our completed public work here.

1. ^{^}

    It is worth noting that associations within EA data may be attenuated by range restriction, i.e. the EA sample may be limited to people who are relatively high in the relevant predictors or outcomes.

2. ^{^}

    The TIPI norms were based on data collected by Jason Rentfrow’s online study of Music Preferences.

3. ^{^}

    The TIPI measures ‘Emotional Stability’, which is Neuroticism scored in reverse. We code this as Neuroticism to facilitate comparison with the AE results.

4. ^{^}

    AE Studio compared mean personality scores between their sample and the sample in Mastrascusa et al. (2023), but the latter appears to only include a sample of people from Brazil, not a more general public.

5. ^{^}

    ‘Fantasy’ is another component of the IRI, but we did not include items to assess this component.

6. ^{^}

    We use an alpha of 0.05 to determine whether a relationship is statistically significant. In the case of multiple comparisons, we apply a Holm correction to the p-values to control the family-wise error rate.

7. ^{^}

    See this note on the alpha reliability of the TIPI.