Development of a Scale for Measuring Cognitive Biases Related to Risk-Taking Among Firefighters: The Five Cognitive Bias Risk Scale (5 CBR-S)
Abstract
1. Introduction
1.1. The Context of the Research
1.2. Five Cognitive Biases Related to Risk-Taking
1.3. The Present Study
2. Methods
2.1. Participants
2.2. Procedure
2.3. Measures
2.3.1. Development of the Preliminary Version of the 5 CBR-S
2.3.2. Questionnaires Used for the Convergent Validity of the 5 CBR-S Scores
2.4. Data Analyses
3. Results
3.1. Exploratory Factor Analyses
3.2. Confirmatory Factor Analyses
3.3. Reliability
3.4. Correlational Analyses
4. Discussion
5. Conclusions
Supplementary Materials
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
Abbreviations
EC | Escalation of Commitment Bias |
OC | Overconfidence Bias |
IC | Illusion of control Bias |
OP | Optimism Bias |
BL | Belief in the law of small numbers bias |
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19-Item EFA | |||||
---|---|---|---|---|---|
Items | Factor 1 | Factor 2 | Factor 3 | Factor 4 | Factor 5 |
Over confidence Bias | |||||
I1: I am sure of what I believe and what I can do | −0.06 | 0.16 | −0.16 | −0.12 | 0.71 |
I2: Others think of me as someone who has a lot of self-confidence | 0.27 | 0.30 | 0.18 | −0.05 | 0.32 |
I3: My way of seeing and doing often contributes to the success of my goals | 0.15 | 0.30 | −0.06 | 0.25 | 0.54 |
I4: When I am at work, I am sure of my skills and I rely above all on my experience | 0.03 | 0.00 | 0.10 | 0.08 | 0.69 |
Illusion of control Bias | |||||
I5: I prefer to control everything | 0.76 | 0.08 | −0.16 | 0.00 | 0.06 |
I6: I often tend to check what my colleagues are doing to make sure they are doing things right | 0.64 | −0.01 | 0.06 | 0.05 | −0.02 |
I7: I want to control everything in my life | 0.73 | 0.09 | 0.00 | 0.09 | 0.08 |
I8: People around me think of me as someone who needs to be in control | 0.80 | 0.03 | 0.05 | 0.13 | −0.01 |
Optimism Bias | |||||
I9: I am a fundamentally optimistic person | 0.00 | 0.80 | −0.14 | −0.07 | 0.09 |
I10: People who know me well think I’m an eternal optimist | 0.11 | 0.81 | 0.03 | 0.09 | 0.18 |
I11: I tend to see the glass half empty | −0.13 | 0.48 | −0.32 | −0.10 | 0.11 |
I12: I am one of the very optimistic people, perhaps even too optimistic | 0.20 | 0.79 | 0.21 | 0.13 | 0.01 |
Escalation of commitment Bias | |||||
I13: In life, I find it difficult to go back, even though I know I’m wrong | 0.07 | −0.10 | 0.61 | −0.01 | −0.16 |
I14: When information doesn’t go the way I want, I tend to put it aside and continue with what I’m doing | −0.03 | 0.24 | 0.69 | −0.03 | −0.06 |
I15: In a driving situation, if I am overtaking a vehicle and I see that I am too short, I will tend to accelerate | −0.09 | −0.24 | 0.56 | −0.08 | 0.27 |
I16: I am one of the very committed people, sometimes even too much because I am able to go after things even if I am wrong | −0.01 | 0.00 | 0.68 | 0.16 | 0.06 |
Belief in the law of small numbers Bias | |||||
I17: I am someone who needs a lot of information to make a decision | 0.03 | −0.13 | −0.09 | 0.74 | −0.18 |
I18: I am a very perfectionist person in the search for information | 0.13 | 0.05 | 0.01 | 0.66 | 0.26 |
I19: I am seen as a person who likes to have very solid evidence before acting or making a decision | 0.11 | 0.12 | 0.16 | 0.77 | 0.04 |
CFA | ESEM | |||||||
---|---|---|---|---|---|---|---|---|
Items | λ | δ | Factor 1 (λ) | Factor 2 (λ) | Factor 3 (λ) | Factor 4 (λ) | Factor 5 (λ) | δ |
Escalation of commitment Bias | ||||||||
Item 13 | 0.52 | 0.73 | 0.61 | 0.00 | −0.07 | 0.06 | 0.02 | 0.61 |
Item 14 | 0.56 | 0.68 | 0.45 | 0.02 | 0.17 | 0.06 | −0.05 | 0.76 |
Item 15 | 0.37 | 0.86 | 0.39 | −0.01 | 0.06 | −0.05 | 0.03 | 0.84 |
Item 16 | 0.43 | 0.82 | 0.37 | 0.16 | 0.18 | −0.02 | −0.02 | 0.80 |
Over confidence Bias | ||||||||
Item 1 | 0.51 | 0.74 | 0.20 | 0.73 | −0.03 | 0.11 | 0.08 | 0.41 |
Item 2 | 0.57 | 0.67 | −0.05 | 0.42 | 0.12 | 0.31 | −0.12 | 0.69 |
Item 3 | 0.56 | 0.68 | −0.16 | 0.43 | 0.25 | 0.21 | 0.08 | 0.67 |
Item 4 | 0.30 | 0.91 | 0.03 | 0.24 | 0.07 | 0.01 | 0.12 | 0.92 |
Illusion of control Bias | ||||||||
Item 5 | 0.56 | 0.69 | 0.15 | 0.33 | 0.40 | −0.10 | 0.17 | 0.67 |
Item 6 | 0.31 | 0.90 | 0.18 | 0.12 | 0.22 | −0.02 | 0.16 | 0.87 |
Item 7 | 0.69 | 0.53 | 0.13 | 0.20 | 0.66 | 0.04 | 0.05 | 0.50 |
Item 8 | 0.64 | 0.58 | 0.04 | −0.00 | 0.72 | 0.04 | 0.11 | 0.46 |
Optimism Bias | ||||||||
Item 9 | 0.79 | 0.37 | 0.08 | 0.15 | −0.09 | 0.76 | −0.07 | 0.37 |
Item 10 | 0.74 | 0.45 | −0.04 | 0.08 | 0.07 | 0.75 | −0.08 | 0.41 |
Item 11 | 0.48 | 0.77 | −0.16 | 0.12 | −0.18 | 0.47 | −0.09 | 0.70 |
Item 12 | 0.75 | 0.44 | 0.12 | 0.09 | 0.12 | 0.75 | −0.03 | 0.40 |
Belief in the law of small numbers Bias | ||||||||
Item 17 | 0.51 | 0.74 | 0.17 | −0.11 | 0.02 | −0.13 | 0.58 | 0.58 |
Item 18 | 0.60 | 0.64 | −0.11 | 0.22 | 0.20 | −0.05 | 0.61 | 0.61 |
Item 19 | 0.74 | 0.45 | −0.11 | 0.02 | 0.10 | −0.10 | 0.48 | 0.48 |
Subscales | EC | OC | IC | OP | BL | M | SD | α |
---|---|---|---|---|---|---|---|---|
Escalation of Commitment Bias (EC) | 26.39 | 4.68 | 0.62 | |||||
Overconfidence Bias (OC) | 0.35 * | 33.08 | 4.05 | 0.55 | ||||
Illusion of Control Bias (IC) | 0.22 * | 0.47 * | 30.50 | 4.76 | 0.66 | |||
Optimism Bias (OP) | 0.21 * | 0.48 * | 0.34 * | 33.68 | 4.93 | 0.72 | ||
Belief in the Law of small numbers Bias (BL) | 0.36 * | 0.36 * | 0.17 * | 0.25 * | 27.04 | 4.61 | 0.68 | |
RAI global score | 0.22 * | 0.28 * | 0.13 * | 0.14 * | 0.06 | 33.69 | 8.51 | 0.84 |
RAI (escape) | 0.21 * | 0.25 * | 0.10 | 0.14 * | 0.05 | 16.62 | 4.53 | 0.68 |
RAI (compensation) | 0.21 * | 0.27 * | 0.14 * | 0.12 * | 0.07 | 17.07 | 4.46 | 0.74 |
identification of own emotions | −0.11 * | 0.22 * | 0.21 * | 0.21 * | 0.03 | 18.85 | 3.04 | 0.66 |
identification of others’ emotions | −0.15 * | 0.16 * | 0.10 | 0.13 * | −0.07 | 18.32 | 3.17 | 0.73 |
Understanding of own emotions | −0.14 * | 0.17 * | 0.10 | 0.16 * | −0.02 | 18.80 | 2.97 | 0.52 |
Understanding of others’ emotions | −0.17 * | 0.13 * | 0.19 * | 0.17 * | −0.05 | 17.26 | 3.07 | 0.66 |
Expression of own emotions | −0.24 * | 0.18 * | 0.11 * | 0.19 * | −0.06 | 15.85 | 3.82 | 0.65 |
Listening to others’ emotions | −0.12 * | 0.13 * | 0.04 | 0.17 * | −0.16 * | 18.90 | 3.89 | 0.77 |
Regulation of own emotions | −0.04 | 0.25 * | 0.08 | 0.43 * | 0.10 | 17.19 | 3.52 | 0.67 |
Regulation of others’ emotions | −0.12 * | 0.23 * | 0.21 * | 0.28 * | −0.03 | 17.15 | 3.09 | 0.68 |
Utilization of own emotions | 0.02 | 0.14 * | 0.17 * | 0.16 * | 0.02 | 16.30 | 3.24 | 0.63 |
Utilization of others’ emotions | 0.09 | 0.38 * | 0.42 * | 0.34 * | 0.13 * | 14.11 | 3.60 | 0.69 |
MTI global score | −0.07 | 0.33 * | 0.18 * | 0.41 * | 0.04 | 45.77 | 4.99 | 0.82 |
Agreeableness | −0.24 * | 0.02 | −0.02 | 0.20 * | −0.19 * | 42.26 | 4.08 | 0.74 |
Extraversion | −0.07 | 0.25 * | 0.05 | 0.29 * | 0.05 | 26.99 | 5.18 | 0.80 |
Openness to experience | −0.04 | 0.19 * | 0.11 | 0.26 * | −0.06 | 34.40 | 5.22 | 0.73 |
Conscientiousness | −0.20 * | 0.20 * | 0.09 | 0.15 * | −0.19 * | 37.02 | 4.47 | 0.79 |
Neuroticism | 0.11 * | −0.26 * | 0.04 | −0.34 * | −0.10 | 17.90 | 4.97 | 0.80 |
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Lhardy, S.; Guillet-Descas, E.; Martinent, G. Development of a Scale for Measuring Cognitive Biases Related to Risk-Taking Among Firefighters: The Five Cognitive Bias Risk Scale (5 CBR-S). Fire 2025, 8, 147. https://doi.org/10.3390/fire8040147
Lhardy S, Guillet-Descas E, Martinent G. Development of a Scale for Measuring Cognitive Biases Related to Risk-Taking Among Firefighters: The Five Cognitive Bias Risk Scale (5 CBR-S). Fire. 2025; 8(4):147. https://doi.org/10.3390/fire8040147
Chicago/Turabian StyleLhardy, Sébastien, Emma Guillet-Descas, and Guillaume Martinent. 2025. "Development of a Scale for Measuring Cognitive Biases Related to Risk-Taking Among Firefighters: The Five Cognitive Bias Risk Scale (5 CBR-S)" Fire 8, no. 4: 147. https://doi.org/10.3390/fire8040147
APA StyleLhardy, S., Guillet-Descas, E., & Martinent, G. (2025). Development of a Scale for Measuring Cognitive Biases Related to Risk-Taking Among Firefighters: The Five Cognitive Bias Risk Scale (5 CBR-S). Fire, 8(4), 147. https://doi.org/10.3390/fire8040147