A reward prediction error for charitable donations reveals outcome orientation of donators
Open accessAbstract
The motives underlying prosocial behavior, like charitable donations, can be related either to actions or to outcomes. To address the neural basis of outcome orientation in charitable giving, we asked 33 subjects to make choices affecting their own payoffs and payoffs to a charity organization, while being scanned by functional magnetic resonance imaging (fMRI). We experimentally induced a reward prediction error (RPE) by subsequently discarding some of the chosen outcomes. Co-localized to a nucleus accumbens BOLD signal corresponding to the RPE for the subject's own payoff, we observed an equivalent RPE signal for the charity's payoff in those subjects who were willing to donate. This unique demonstration of a neuronal RPE signal for outcomes exclusively affecting unrelated others indicates common brain processes during outcome evaluation for selfish, individual and nonselfish, social rewards and strongly suggests the effectiveness of outcome-oriented motives in charitable giving.
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
People value vicarious rewards and exhibit increased ventral striatum activity even when they are not responsible for the reward.
“Interestingly, people value vicarious rewards and exhibit increased ventral striatum activity even when they are not responsible for the reward 61–63.”
From The social brain and reward: Social information processing in the human striatum (2014) · cites this paper as [63]
Several studies link activity in the striatum with giving behavior, suggesting that striatum activity signals the benefits of giving.
“Several studies link activity in the striatum with giving behavior, suggesting that striatum activity signals the benefits of giving 59–63.”
From The social brain and reward: Social information processing in the human striatum (2014) · cites this paper as [63]
Ventral and dorsal striatum appear to signal a vicarious reward when other parties (i.e., a charity or another person) receive rewards, regardless of whether any enhanced reputation can be gained.
“That is, ventral and dorsal striatum appear to signal a vicarious reward when other parties (i.e., a charity or another person) receive rewards, regardless of whether any enhanced reputation can be gained 60–63.”
From The social brain and reward: Social information processing in the human striatum (2014) · cites this paper as [63]
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Cites
Impure Altruism and Donations to Public Goods: A Theory of Warm-Glow Giving
Andreoni, J. (1990) · The Economic Journal · doi:10.2307/2234133 · Cited by 5,825 · see citing works
Predictive reward signal of dopamine neurons
Schultz, W. (1998) · Journal of Neurophysiology · doi:10.1152/jn.1998.80.1.1 · Cited by 4,564 · see citing works
Giving with Impure Altruism: Applications to Charity and Ricardian Equivalence
James Andreoni, A. (1989) · Journal of Political Economy · doi:10.1086/261662 · Cited by 3,165 · see citing works
Can cognitive processes be inferred from neuroimaging data?
POLDRACK, R. (2006) · Trends in Cognitive Sciences · doi:10.1016/j.tics.2005.12.004 · Cited by 2,230 · see citing works
Valid conjunction inference with the minimum statistic
Nichols, T. E., Brett, M., Andersson, J., Wager, T. D., & Poline, J. (2005) · NeuroImage · doi:10.1016/j.neuroimage.2004.12.005 · Cited by 1,885 · see citing works
The Neural Basis of Altruistic Punishment
de Quervain, D. J.-F., Fischbacher, U., Treyer, V., Schellhammer, M., Schnyder, U., Buck, A., & Fehr, E. (2004) · Science · doi:10.1126/science.1100735 · Cited by 1,768 · see citing works
FMRI visualization of brain activity during a monetary incentive delay task
Knutson, B., Westdorp, A., Kaiser, E., & Hommer, D. (2000) · NeuroImage · doi:10.1006/nimg.2000.0593 · Cited by 1,414 · see citing works
Functional imaging of neural responses to expectancy and experience of monetary gains and losses
Breiter, H. C., Aharon, I., Kahneman, D., Dale, A., & Shizgal, P. (2001) · Neuron · doi:10.1016/s0896-6273(01)00303-8 · Cited by 1,404 · see citing works
Neural Responses to Taxation and Voluntary Giving Reveal Motives for Charitable Donations
Harbaugh, W. T., Mayr, U., & Burghart, D. R. (2007) · Science · doi:10.1126/science.1140738 · Cited by 1,046 · see citing works
Human fronto–mesolimbic networks guide decisions about charitable donation
Moll, J., Krueger, F., Zahn, R., Pardini, M., de Oliveira-Souza, R., & Grafman, J. (2006) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.0604475103 · Cited by 900 · see citing works
Processing of Social and Monetary Rewards in the Human Striatum
Izuma, K., Saito, D. N., & Sadato, N. (2008) · Neuron · doi:10.1016/j.neuron.2008.03.020 · Cited by 855 · see citing works
When Does "Economic Man" Dominate Social Behavior?
Camerer, C. F., & Fehr, E. (2006) · Science · doi:10.1126/science.1110600 · Cited by 733 · see citing works
Social Comparison Affects Reward-Related Brain Activity in the Human Ventral Striatum
Fließbach, K., Weber, B., Trautner, P., Dohmen, T., Sunde, U., Elger, C. E., & Falk, A. (2007) · Science · doi:10.1126/science.1145876 · Cited by 649 · see citing works
Self-citationKnow Your Place: Neural Processing of Social Hierarchy in Humans
Zink, C. F., Tong, Y., Chen, Q., Bassett, D. S., Stein, J. L., & Meyer-Lindenberg, A. (2008) · Neuron · doi:10.1016/j.neuron.2008.01.025 · Cited by 622 · see citing works
Tabibnia, G., Satpute, A. B., & Lieberman, M. D. (2008) · Psychological Science · doi:10.1111/j.1467-9280.2008.02091.x · Cited by 552 · see citing works
Yacubian, J., Gläscher, J., Schroeder, K., Sommer, T., Braus, D. F., & Büchel, C. (2006) · The Journal of Neuroscience · doi:10.1523/jneurosci.2915-06.2006 · Cited by 537 · see citing works
Harbaugh, W. T. (1998) · Journal of Public Economics · doi:10.1016/s0047-2727(97)00062-5 · Cited by 536 · see citing works
Hare, T. A., Camerer, C. F., Knoepfle, D. T., O'Doherty, J. P., & Rangel, A. (2010) · The Journal of Neuroscience · doi:10.1523/jneurosci.4089-09.2010 · Cited by 527 · see citing works
Neural evidence for inequality-averse social preferences
Tricomi, E., Rangel, A., Camerer, C. F., & O’Doherty, J. P. (2010) · Nature · doi:10.1038/nature08785 · Cited by 462 · see citing works
Activity in human ventral striatum locked to errors of reward prediction
Pagnoni, G., Zink, C. F., Montague, P. R., & Berns, G. S. (2002) · Nature Neuroscience · doi:10.1038/nn802 · Cited by 451 · see citing works
Krüeger, F., McCabe, K., Moll, J., Kriegeskorte, N., Zahn, R., Strenziok, M., Heinecke, A., & Grafman, J. H. (2007) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.0710103104 · Cited by 395 · see citing works
The Right and the Good: Distributive Justice and Neural Encoding of Equity and Efficiency
Hsu, M., Anen, C., & Quartz, S. R. (2008) · Science · doi:10.1126/science.1153651 · Cited by 354 · see citing works
Social and monetary reward learning engage overlapping neural substrates
Lin, A., Adolphs, R., & Rangel, A. (2012) · Social Cognitive and Affective Neuroscience · doi:10.1093/scan/nsr006 · Cited by 351 · see citing works
Distinct Value Signals in Anterior and Posterior Ventromedial Prefrontal Cortex
Smith, D. V., Hayden, B. Y., Truong, T.-K., Song, A. W., Platt, M. L., & Huettel, S. A. (2010) · The Journal of Neuroscience · doi:10.1523/jneurosci.3319-09.2010 · Cited by 300 · see citing works
Processing of the incentive for social approval in the ventral striatum during charitable donation
Izuma, K., Saito, D. N., & Sadato, N. (2010) · Journal of Cognitive Neuroscience · doi:10.1162/jocn.2009.21228 · Cited by 276 · see citing works
Detection of time-varying signals in event-related fMRI designs
Grinband, J., Wager, T. D., Lindquist, M. A., Ferrera, V. P., & Hirsch, J. (2008) · NeuroImage · doi:10.1016/j.neuroimage.2008.07.065 · Cited by 268 · see citing works
Activity in the amygdala elicited by unfair divisions predicts social value orientation
Haruno, M., & Frith, C. D. (2010) · Nature Neuroscience · doi:10.1038/nn.2468 · Cited by 180 · see citing works
Mixed feelings: Theories of and evidence on giving
Konow, J. (2009) · Journal of Public Economics · doi:10.1016/j.jpubeco.2009.11.008 · Cited by 163 · see citing works
Reputation for reciprocity engages the brain reward center
Phan, K. L., Sripada, C. S., Angstadt, M., & McCabe, K. (2010) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.1008137107 · Cited by 152 · see citing works
Investigating the cognitive neuroscience of social behavior
Adolphs, R. (2003) · Neuropsychologia · doi:10.1016/s0028-3932(02)00142-2 · Cited by 136 · see citing works
Learning-Related Human Brain Activations Reflecting Individual Finances
Tobler, P. N., Fletcher, P. C., Bullmore, E. T., & Schultz, W. (2007) · Neuron · doi:10.1016/j.neuron.2007.03.004 · Cited by 85 · see citing works
Representation of Subjective Value in the Striatum
Knutson, B. D., Delgado, M. R., & Phillips, P. E. M. (2009) · Elsevier eBooks · doi:10.1016/b978-0-12-374176-9.00025-7 · Cited by 68 · see citing works
Flagged first, then by citations
Cited by
Sorted by citations
The neurobiology of rewards and values in social decision making
Ruff, C. C., & Fehr, E. (2014) · Nature reviews. Neuroscience · doi:10.1038/nrn3776 · Cited by 716 · see citing works
Interactions Between the Nucleus Accumbens and Auditory Cortices Predict Music Reward Value
Salimpoor, V. N., van den Bosch, I., Kovacevic, N., McIntosh, A. R., Dagher, A., & Zatorre, R. J. (2013) · Science · doi:10.1126/science.1231059 · Cited by 635 · see citing works
Neuronal reference frames for social decisions in primate frontal cortex
Chang, S. W. C., Gariépy, J.-F., & Platt, M. L. (2013) · Nature Neuroscience · doi:10.1038/nn.3287 · Cited by 336 · see citing works
Processing of the incentive for social approval in the ventral striatum during charitable donation
Izuma, K., Saito, D. N., & Sadato, N. (2010) · Journal of Cognitive Neuroscience · doi:10.1162/jocn.2009.21228 · Cited by 276 · see citing works
The social brain and reward: Social information processing in the human striatum
Bhanji, J. P., & Delgado, M. R. (2014) · WIREs Cognitive Science · doi:10.1002/wcs.1266 · Cited by 256 · see citing works
Genetic origins of social networks in rhesus macaques
Brent, L. J. N., Heilbronner, S. R., Horvath, J. E., Gonzalez-Martinez, J., Ruiz-Lambides, A., Robinson, A. G., Skene, J. H. P., & Platt, M. L. (2013) · Scientific Reports · doi:10.1038/srep01042 · Cited by 220 · see citing works
Observational learning computations in neurons of the human anterior cingulate cortex
Hill, M. R. H., Boorman, E. D., & Fried, I. (2016) · Nature Communications · doi:10.1038/ncomms12722 · Cited by 100 · see citing works
Effort increases sensitivity to reward and loss magnitude in the human brain
Hernandez-Lallement, J., Kuss, K., Trautner, P., Weber, B., Falk, A., & Fließbach, K. (2012) · Social Cognitive and Affective Neuroscience · doi:10.1093/scan/nss147 · Cited by 97 · see citing works
Self-citationCutler, J., Wittmann, M. K., Abdurahman, A., Hargitai, L. D., Drew, D., Husain, M., & Lockwood, P. L. (2021) · Nature Communications · doi:10.1038/s41467-021-24576-w · Cited by 73 · see citing works
Friend versus foe: Neural correlates of prosocial decisions for liked and disliked peers
Schreuders, E., Klapwijk, E. T., Will, G., & Güroğlu, B. (2018) · Cognitive Affective & Behavioral Neuroscience · doi:10.3758/s13415-017-0557-1 · Cited by 73 · see citing works
Goal-directed, habitual and Pavlovian prosocial behavior
GÄTMsiarz, F., & Crockett, M. J. (2015) · Frontiers in Behavioral Neuroscience · doi:10.3389/fnbeh.2015.00135 · Cited by 60 · see citing works
Rhoads, S. A., Cutler, J., & Marsh, A. A. (2021) · Social Cognitive and Affective Neuroscience · doi:10.1093/scan/nsab079 · Cited by 51 · see citing works
Kuss, K., Falk, A., Trautner, P., Montag, C., Weber, B., & Fließbach, K. (2015) · Frontiers in Behavioral Neuroscience · doi:10.3389/fnbeh.2015.00040 · Cited by 43 · see citing works
Self-citation“An Eye for an Eye”? Neural Correlates of Retribution and Forgiveness
Brüne, M., Juckel, G., & Enzi, B. (2013) · PLoS ONE · doi:10.1371/journal.pone.0073519 · Cited by 42 · see citing works
The good lies: Altruistic goals modulate processing of deception in the anterior insula
Yin, L., Hu, Y., Dynowski, D., Li, J., & Weber, B. (2017) · Human Brain Mapping · doi:10.1002/hbm.23623 · Cited by 38 · see citing works
Self-citationTusche, A., & Bas, L. M. (2021) · Wiley Interdisciplinary Reviews Cognitive Science · doi:10.1002/wcs.1571 · Cited by 36 · see citing works
Computing Social Value Conversion in the Human Brain
Fukuda, H., Ma, N., Suzuki, S., Harasawa, N., Ueno, K., Gardner, J. L., Ichinohe, N., Haruno, M., Cheng, K., & Nakahara, H. (2019) · Journal of Neuroscience · doi:10.1523/jneurosci.3117-18.2019 · Cited by 32 · see citing works
Huang, Q., Li, D., Zhou, C., Xu, Q., Li, P., & Warren, C. M. (2021) · NeuroImage · doi:10.1016/j.neuroimage.2021.118475 · Cited by 30 · see citing works
Goal or Gold: Overlapping Reward Processes in Soccer Players upon Scoring and Winning Money
Häusler, A. N., Becker, B., Bartling, M., & Weber, B. (2015) · PLoS ONE · doi:10.1371/journal.pone.0122798 · Cited by 22 · see citing works
Self-citationVoluntary or reluctant? Social influence in charitable giving: an ERP study
Xu, Q., Shengnan, H., Li, Z., Duan, R., & Li, P. (2023) · Social Cognitive and Affective Neuroscience · doi:10.1093/scan/nsad010 · Cited by 20 · see citing works
Neural reward-related reactions to monetary gains for self and charity
Spaans, J., Peters, S., & Crone, E. A. (2018) · Cognitive Affective & Behavioral Neuroscience · doi:10.3758/s13415-018-00672-1 · Cited by 20 · see citing works
Cortical thickness and prosocial behavior in school-age children: A population-based MRI study
Thijssen, S., Wildeboer, A., Muetzel, R. L., Bakermans‐Kranenburg, M. J., Marroun, H. E., Albert Hofman, D., Jaddoe, V. W. V., van der Lugt, A., Verhulst, F. C., Tiemeier, H. W., et al. (2015) · Social Neuroscience · doi:10.1080/17470919.2015.1014063 · Cited by 18 · see citing works
Wang, J., Chen, Z., Peng, X., Yang, T., Li, P., Cong, F., & Li, H. (2016) · Frontiers in Psychology · doi:10.3389/fpsyg.2016.01556 · Cited by 18 · see citing works
Neuroanatomical correlates of donating behavior in middle childhood
Wildeboer, A., Thijssen, S., Muetzel, R. L., Bakermans‐Kranenburg, M. J., Tiemeier, H. W., White, T. J. H., & van IJzendoorn, M. H. (2017) · Social Neuroscience · doi:10.1080/17470919.2017.1361864 · Cited by 14 · see citing works
Spaans, J., Peters, S., & Crone, E. A. (2020) · Social Cognitive and Affective Neuroscience · doi:10.1093/scan/nsaa027 · Cited by 13 · see citing works
Neural sensitivity to helping outcome predicts helping decision in real life
Gan, T., Zhang, Y., Zhang, L., & Gu, R. (2022) · Neuropsychologia · doi:10.1016/j.neuropsychologia.2022.108291 · Cited by 12 · see citing works
Longitudinal neural and behavioral trajectories of charity contributions across adolescence
Spaans, J., Peters, S., Becht, A., van der Cruijsen, R., van de Groep, S., & Crone, E. A. (2022) · Journal of Research on Adolescence · doi:10.1111/jora.12820 · Cited by 10 · see citing works
Reward circuitry activation reflects social preferences in the face of cognitive effort
Sullivan‐Toole, H., Dobryakova, E., DePasque, S., & Tricomi, E. M. (2018) · Neuropsychologia · doi:10.1016/j.neuropsychologia.2018.06.011 · Cited by 9 · see citing works
Fairness and Inequity Aversion
Tricomi, E. M., & Sullivan‐Toole, H. (2015) · Elsevier eBooks · doi:10.1016/b978-0-12-397025-1.00142-1 · Cited by 10 · see citing works
The neuroeconomics of voting: Neural evidence of different sources of utility in voting.
Bischoff, I., Neuhaus, C., Trautner, P., & Weber, B. (2013) · Journal of Neuroscience Psychology and Economics · doi:10.1037/npe0000016 · Cited by 7 · see citing works
Self-citationYang, Z., & Li, P. (2025) · Neuroscience & Biobehavioral Reviews · doi:10.1016/j.neubiorev.2025.106205 · Cited by 6 · see citing works
Altruism from the Perspective of the Social Neurosciences
Windmann, S., & Hein, G. (2018) · e-Neuroforum · doi:10.1515/nf-2017-0047 · Cited by 9 · see citing works
A biomarker of maternal vicarious reward processing and its association with parenting behavior
Levinson, A. R., Szenczy, A. K., Nelson, B. D., Hajcak, G., & Bernard, K. (2021) · Biological Psychology · doi:10.1016/j.biopsycho.2021.108240 · Cited by 4 · see citing works
Palermo, S. (2023) · Frontiers in Psychology · doi:10.3389/fpsyg.2023.1073632 · Cited by 4 · see citing works
Predictions about reward outcomes in rhesus monkeys.
Huang, Y., Chang, H., Santos, L. R., & Rosati, A. G. (2023) · Behavioral Neuroscience · doi:10.1037/bne0000573 · Cited by 4 · see citing works
Altruism from the Perspective of the Social Neurosciences
Windmann, S., & Hein, G. (2018) · e-Neuroforum · doi:10.1515/nf-2017-a047 · Cited by 4 · see citing works
Niu, N., Zhong, Y., Li, J., Li, M., & Fan, W. (2025) · Brain and Cognition · doi:10.1016/j.bandc.2024.106259 · Cited by 3 · see citing works
The computational and neural substrates underlying social learning
Li, S., Chen, X., Zhai, Y., Zhang, Y., Zhang, Z., & Chunliang, F. E. N. G. (2021) · Advances in Psychological Science · doi:10.3724/sp.j.1042.2021.00677 · Cited by 3 · see citing works
Neural Mechanisms of Vicarious Reward Processing in Adults with Autism Spectrum Disorder
Greene, R. K., Damiano, C. R., Walsh, E. C., Bizzell, J., & Dichter, G. S. (2020) · Autism Research and Treatment · doi:10.1155/2020/8014248 · Cited by 3 · see citing works
The impact of affective congruence on charitable giving
Genevsky, A., Yoon, C., Lin, T.-Y., Shaw, S. D., & Knutson, B. D. (2025) · Social Cognitive and Affective Neuroscience · doi:10.1093/scan/nsaf086 · Cited by 2 · see citing works
Autistic traits modulate neural and behavioral responses to social vs nonsocial rewards
Haffey, A., Hsu, C., & Chakrabarti, B. (2025) · Personality Neuroscience · doi:10.1017/pen.2025.10003 · Cited by 1 · see citing works
The neurophysiological correlates of altruism: A scoping review of fMRI, EEG, and autonomic studies
Orui, J., Inoue, T., Shiraiwa, K., Ueda, M., Naito, Y., & Ishii, R. (2025) · Cognitive Affective & Behavioral Neuroscience · doi:10.3758/s13415-025-01380-3 · Cited by 2 · see citing works
Seeking information about outcomes affecting other people shows a preference for good newsPreprint
Cutler, J., & Campbell-Meiklejohn, D. K. (2022) · doi:10.31234/osf.io/97dkr · Cited by 1 · see citing works
Allocentric effort decision making : a neuroeconomic investigation
FitzGerald, S. C. (2018) · doi:10.32657/10356/74800
Aligning tax incentives with motivations for philanthropy
Cutler, J. (2021) · Routledge eBooks · doi:10.4324/9781003139201-19
Myznikov, A., Korotkov, A. D., Zheltyakova, M., Cherednichenko, D. V., Kireev, M. V., Masharipov, R. S., & Votinov, M. (2021) · European Neuropsychopharmacology · doi:10.1016/j.euroneuro.2021.10.268
(2014) · Vandenhoeck & Ruprecht eBooks · doi:10.13109/9783666701702.198
Differential neural and behavioural responses to social vs nonsocial rewards in adultsPreprint
Haffey, A., Hsu, C., & Chakrabarti, B. (2023) · doi:10.31234/osf.io/ueqjw
Sweijen, S., Toenders, Y. J., van de Groep, S., Spaans, J., & Crone, E. A. (2026) · NeuroImage · doi:10.1016/j.neuroimage.2026.122103
Negative Emotional Context Reverses Charitable Framing Effect: Behavioral and Neural Evidence
Huang, X., & Zhang, E. (2025) · Journal of Cognitive Neuroscience · doi:10.1162/jocn.a.2424
- Authors
- Kuss, K., Falk, A., Trautner, P., Elger, C. E., Weber, B., & Fliessbach, K.
- Affiliations
- University of Bonn (DE)
- Venue
- Social Cognitive and Affective Neuroscience
- Publisher
- Oxford University Press (OUP)
- Published
- 2011-12-23
- Volume
- 8
- Issue
- 2
- Pages
- 216-223
- ISSN
- 1749-5016 (ISSN-L)
- 1749-5024
- PMC
- PMC3575724
- OpenAlex
- W2128441972
- Cited by
- 51
- References
- 32
- Citations by year
- 2026: 1 · 2025: 6 · 2023: 4 · 2022: 3 · 2021: 8 · 2020: 2 · 2019: 1 · 2018: 6 · 2017: 2 · 2016: 2 · 2015: 5 · 2014: 3 · 2013: 5 · 2012: 2
- FWCI
- 1.62
- Type
- journal article
- Language
- en
- Open access
- hybrid
- doi.org
- Licence
- Locations
- Social Cognitive and Affective Neuroscience (publishedVersion, cc-by-nc)
- Europe PMC (PubMed Central) (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
- Social Sciences › Safety Research › Experimental Behavioral Economics Studies
- Social Sciences › Sociology and Political Science › Nonprofit Sector and Volunteering
- Keywords
- reward prediction error, charitable giving, prosocial behavior, results orientation, nucleus accumbens, social reward
- MeSH terms
- Adult, Charities, Decision Making, Female, Goals, Humans, Magnetic Resonance Imaging, Male, Motivation, Neural Pathways, Neuropsychological Tests, Nucleus Accumbens, Reward, Social Behavior, Beneficence, Young Adult
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review