The MIR 2018 Exam: Psychometric Study and Comparison with the Previous Nine Years
Abstract
:1. Introduction
2. Materials and Methods
2.1. The Examination Under Study
2.2. Database
2.3. Data Analysis
2.3.1. Reliability
2.3.2. Difficulty Index
2.3.3. Difficulty Index with Correction of Random Effects
2.3.4. Discrimination Index
2.3.5. Point Biserial Correlation Index
2.3.6. The Two Parameter Model of IRT
3. Results
3.1. Analysis of Exam Questions
3.2. Analysis of Exam Questions Grouped by Subject
3.3. Analysis of the Exam Questions Grouped by Logs or Blocks
3.4. Analysis by Question Type
4. Discussion
5. Conclusions
Limitations and Recommendations
Author Contributions
Funding
Conflicts of Interest
References
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Difficulty Index | Difficulty Index with Random Effects Correction | Discrimination Index | Correlation Index Point Biserial | Discrimination Index IRT | |||||
---|---|---|---|---|---|---|---|---|---|
Values | Categories | Values | Categories | Values | Categories | Values | Categories | Values | Categories |
>0.8 | Easy | >0.8 | Very easy | >0.34 | Excellent | >0.39 | Excellent | >1 | Excellent |
>0.6 to 0.8 | Acceptable | >0.66 to 0.80 | Easy | >0.24 to 0.34 | Good | >0.30 to 0.39 | Good | >0.70 to 1 | Good |
>0.5 to 0.6 | Excellent | >0.33 to 0.66 | Excellent | >0.14 to 0.24 | Revisable | >0.20 to 0.30 | Regular | >0.40 to 0.70 | Regular |
>0.3 to 0.5 | Acceptable | >0 to 0.33 | Difficult | 0 to 0.14 | Bad | 0–0.20 | Poor | 0–0.40 | Poor |
0–0.3 | Difficult | –0.33 to 0 | Very difficult | <0 | Very bad | <0 | Lousy | <0 | Lousy |
Block | Subject | Number of Questions | Difficulty Index | Difficulty Index with Random Effects Correction | Discrimination Index |
---|---|---|---|---|---|
Systems | Digestive | 16 | 0.679 (0.276) | 0.577 (0.366) | 0.209 (0.098) |
Cardiology | 15 | 0.732 (0.155) | 0.648 (0.206) | 0.170 (0.127) | |
Infectious Diseases | 14 | 0.514 (0.294) | 0.360 (0.394) | 0.238 (0.118) | |
Nephrology | 13 | 0.671 (0.226) | 0.566 (0.298) | 0.309 (0.008) | |
Endocrinology | 12 | 0.643 (0.253) | 0.535 (0.326) | 0.229 (0.107) | |
Pneumology | 11 | 0.706 (0.182) | 0.614 (0.239) | 0.289 (0.084) | |
Neurology | 10 | 0.722 (0.143) | 0.641 (0.191) | 0.320 (0.129) | |
Haematology | 10 | 0.652 (0.209) | 0.545 (0.268) | 0.255 (0.004) | |
Rheumatology | 6 | 0.656 (0.168) | 0.545 (0.225) | 0.398 (0.003) | |
Basic | Genetics | 6 | 0.816 (0.072) | 0.766 (0.088) | 0.169 (0.016) |
Immunology | 5 | 0.528 (0.177) | 0.388 (0.225) | 0.182 (0.001) | |
Anatomy | 5 | 0.482 (0.279) | 0.319 (0.373) | 0.021 (0.120) | |
Pharmacology | 5 | 0.529 (0.173) | 0.380 (0.232) | 0.157 (0.003) | |
Pathological Anatomy | 4 | 0.376 (0.204) | 0.197 (0.238) | 0.075 (0.086) | |
Biochemistry | 1 | 0.486 | 0.369 | 0.162 | |
Other | Preventive | 17 | 0.588 (0.235) | 0.466 (0.311) | 0.309 (0.079) |
Gynaecology and Obstetrics | 12 | 0.613 (0.198) | 0.492 (0.265) | 0.328 (0.110) | |
Paediatrics | 10 | 0.581 (0.271) | 0.452 (0.357) | 0.378 (0.063) | |
Psychiatry | 7 | 0.725 (0.134) | 0.642 (0.181) | 0.409 (0.072) | |
Traumatology | 7 | 0.628 (0.144) | 0.514 (0.192) | 0.376 (0.102) | |
Clinical Management | 5 | 0.524 (0.321) | 0.378 (0.422) | 0.290 (0.136) | |
Emergency | 5 | 0.602 (0.222) | 0.475 (0.295) | 0.480 (0.032) | |
Ophthalmology | 4 | 0.751 (0.099) | 0.673 (0.130) | 0.296 (0.108) | |
Dermatology | 4 | 0.407 (0.034) | 0.221 (0.046) | 0.130 (0.087) | |
Physiology | 3 | 0.682 (0.067) | 0.597 (0.082) | 0.169 (0.001) | |
Otorhinolaryngology | 3 | 0.709 (0.275) | 0.621 (0.358) | 0.229 (0.080) | |
Oncology | 3 | 0.568 (0.134) | 0.433 (0.177) | 0.456 (0.003) | |
Palliatives | 3 | 0.593 (0.318) | 0.461 (0.423) | 0.466 (0.006) | |
Geriatrics | 3 | 0.348 (0.245) | 0.140 (0.333) | 0.442 (0.005) | |
Maxilo-Facial Surgery | 2 | 0.658 (0.067) | 0.551 (0.092) | 0.269 (0.002) | |
Plastic Surgery | 2 | 0.658 (0.084) | 0.573 (0.079) | 0.427 (0.005) | |
Anaesthesiology | 2 | 0.844 (0.073) | 0.798 (0.095) | 0.420 (0.001) | |
Vascular Surgery | 2 | 0.297 (0.231) | 0.075 (0.317) | 0.090 (0.066) | |
Bioethics | 1 | 0.941 | 0.922 | 0.421 | |
Communication Skills | 1 | 0.971 | 0.964 | 0.482 | |
Legal Medicine | 1 | 0.667 | 0.568 | 0.481 | |
Total | 230 | 0.629 (0.226) | 0.515 (0.297) | 0.277 (0.130) |
Block | Subject | Number of Questions | Point Biserial Correlation | Difficulty IRT | IRT Discrimination |
---|---|---|---|---|---|
Systems | Digestive | 16 | 0.246 (0.160) | −8.065 (23.309) | 0.629 (0.508) |
Cardiology | 15 | 0.305 (0.130) | −1.860 (1.147) | 0.787 (0.482) | |
Infectious Diseases | 14 | 0.249 (0.213) | −6.094 (23.097) | 0.642 (0.763) | |
Nephrology | 13 | 0.267 (0.096) | −0.685 (3.268) | 0.655 (0.348) | |
Endocrinology | 12 | 0.314 (0.121) | −0.959 (2.493) | 0.794 (0.357) | |
Pneumology | 11 | 0.283 (0.132) | −3.974 (7.777) | 0.704 (0.416) | |
Neurology | 10 | 0.311 (0.082) | −1.634 (1.233) | 0.758 (0.294) | |
Haematology | 10 | 0.339 (0.121) | −0.739 (1.657) | 0.856 (0.459) | |
Rheumatology | 6 | 0.281 (0.121) | −1.016 (0.945) | 0.686 (0.438) | |
Basic | Genetics | 6 | 0.395 (0.080) | −1.892 (0.334) | 1.067 (0.374) |
Immunology | 5 | 0.311 (0.117) | 0.194 (1.582) | 0.679 (0.321) | |
Anatomy | 5 | 0.176 (0.078) | 1.291 (4.446) | 0.368 (0.125) | |
Pharmacology | 5 | 0.257 (0.067) | −0.188 (1.719) | 0.539 (0.143) | |
Pathological Anatomy | 4 | 0.145 (0.156) | 6.849 (13.448) | 0.315 (0.337) | |
Biochemistry | 1 | 0.257 | 0.066 | 0.536 | |
Other | Preventive | 17 | 0.271 (0.099) | −0.329 (2.449) | 0.635 (0.259) |
Gynaecology and Obstetrics | 12 | 0.236 (0.106) | 0.83 (6.826) | 0.515 (0.273) | |
Paediatrics | 10 | 0.239 (0.139) | 6.311 (20.638) | 0.604 (0.447) | |
Psychiatry | 7 | 0.279 (0.119) | −1.780 (0.97) | 0.661 (0.515) | |
Traumatology | 7 | 0.294 (0.082) | −0.930 (1.043) | 0.617 (0.221) | |
Clinical Management | 5 | 0.258 (0.134) | 0.726 (3.661) | 0.685 (0.407) | |
Emergency | 5 | 0.197 (0.116) | 1.264 (7.176) | 0.391 (0.257) | |
Ophthalmology | 4 | 0.375 (0.158) | −1.677 (0.372) | 0.991 (0.599) | |
Dermatology | 4 | 0.198 (0.073) | 1.863 (2.38) | 0.374 (0.187) | |
Physiology | 3 | 0.255 (0.034) | −1.755 (0.853) | 0.503 (0.061) | |
Otorhinolaryngology | 3 | 0.313 (0.123) | −1.656 (1.883) | 1.107 (0.978) | |
Oncology | 3 | 0.385 (0.099) | −0.320 (0.696) | 0.959 (0.386) | |
Palliatives | 3 | 0.307 (0.096) | −0.453 (2.396) | 0.733 (0.227) | |
Geriatrics | 3 | 0.152 (0.203) | 57.036 (51.707) | 0.304 (0.505) | |
Maxilo-Facial Surgery | 2 | 0.289 (0.051) | −1.260 (0.281) | 0.5814 (0.157) | |
Plastic Surgery | 2 | 0.193 (0.005) | −1.936 (1.202) | 0.376 (0.035) | |
Anaesthesiology | 2 | 0.369 (0.067) | −2.178 (0.143) | 0.997 (0.358) | |
Vascular Surgery | 2 | 0.164 (0.162) | 11.891 (16.472) | 0.338 (0.366) | |
Bioethics | 1 | 0.481 | −2.270 | 2.006 | |
Communication Skills | 1 | 0.372 | −2.908 | 1.887 | |
Legal Medicine | 1 | 0.270 | −1.482 | 0.518 | |
Total | 230 | 0.275 (0.129) | −0.389 (13.143) | 0.677 (0.443) |
Difficulty Index (Categories) | |||||||
Difficulty Index | Easy | Acceptable | Optimal | Difficult | Total | ||
Basic | 0.561 (0.227) | 3 | 16 | 4 | 3 | 26 | |
Systems | 0.663 (0.226) | 37 | 49 | 9 | 12 | 107 | |
Other | 0.609 (0.221) | 19 | 57 | 9 | 12 | 97 | |
Total | 0.629 (0.226) | 59 | 122 | 22 | 27 | 230 | |
Difficulty index with correction of random effects (categories) | |||||||
Difficulty index with random effects correction | Very easy | Easy | Optimal | Difficult | Very difficult | Total | |
Basic | 0.431 (0.295) | 3 | 4 | 11 | 6 | 2 | 26 |
Systems | 0.558 (0.299) | 25 | 24 | 36 | 13 | 9 | 107 |
Other | 0.489 (0.292) | 14 | 21 | 33 | 21 | 8 | 97 |
Total | 0.515 (0.297) | 42 | 49 | 80 | 40 | 19 | 230 |
Discrimination index (categories) | |||||||
Discrimination Index | Excellent | Good | Revisable | Bad | Very bad | Total | |
Basic | 0.126 (0.085) | 0 | 0 | 20 | 2 | 4 | 26 |
Systems | 0.256 (0.109) | 11 | 49 | 31 | 16 | 0 | 107 |
Other | 0.342 (0.118) | 60 | 22 | 6 | 9 | 0 | 97 |
Total | 0.277 (0.129) | 71 | 71 | 57 | 27 | 4 | 230 |
Point biserial correlation index (categories) | |||||||
Point biserial correlation index | Excellent | Good | Regular | Poor | Too bad | Total | |
Basic | 0.267 (0.129) | 5 | 5 | 7 | 9 | 0 | 26 |
Systems | 0.286 (0.139) | 23 | 23 | 37 | 22 | 2 | 107 |
Other | 0.267 (0.117) | 11 | 28 | 29 | 29 | 0 | 97 |
Total | 0.275 (0.128) | 39 | 56 | 73 | 60 | 2 | 230 |
Discrimination index IRT (categories) | |||||||
Discrimination Index IRT | Excellent | Good | Regular | Poor | Too bad | Total | |
Basic | 0.620 (0.377) | 27 | 18 | 42 | 15 | 5 | 107 |
Systems | 0.719 (0.471) | 4 | 6 | 7 | 9 | 0 | 26 |
Other | 0.646 (0.427) | 11 | 25 | 35 | 26 | 0 | 97 |
Total | 0.677 (0.443) | 42 | 49 | 84 | 50 | 5 | 230 |
Difficulty index (categories) | |||||||
Difficulty index | Easy | Acceptable | Optimal | Difficult | Total | ||
Clinical Cases | 0.662 (0.216) | 32 | 60 | 10 | 9 | 111 | |
Clinical cases with image | 0.561 (0.244) | 7 | 15 | 5 | 5 | 32 | |
Negative | 0.645 (0.224) | 15 | 26 | 3 | 6 | 50 | |
Test | 0.568 (0.221) | 5 | 21 | 4 | 7 | 37 | |
Total | 0.629 (0.226) | 59 | 122 | 22 | 27 | 230 | |
Difficulty index with random effects correction (categories) | |||||||
Difficulty index with random effects correction | Very easy | Easy | Optimal | Difficult | Very difficult | Total | |
Clinical Cases | 0.557 (0.286) | 26 | 25 | 37 | 16 | 7 | 111 |
Clinical cases with image | 0.426 (0.323) | 4 | 5 | 11 | 8 | 4 | 32 |
Negative | 0.535 (0.294) | 10 | 12 | 15 | 10 | 3 | 50 |
Test | 0.437 (0.293) | 2 | 7 | 17 | 6 | 5 | 37 |
Total | 0.515 (0.297) | 42 | 49 | 80 | 40 | 19 | 230 |
Discrimination index (categories) | |||||||
Discrimination Index | Excellent | Good | Revisable | Bad | Very bad | Total | |
Clinical Cases | 0.278 (0.127) | 34 | 34 | 30 | 10 | 3 | 111 |
Clinical cases with image | 0.225 (0.117) | 6 | 9 | 8 | 9 | 0 | 32 |
Negative | 0.289 (0.112) | 18 | 17 | 12 | 3 | 0 | 50 |
Test | 0.302 (0.159) | 13 | 11 | 7 | 5 | 1 | 37 |
Total | 0.277 (0.129) | 71 | 71 | 57 | 27 | 4 | 230 |
Point biserial correlation index (categories) | |||||||
Point biserial correlation index | Excellent | Good | Regular | Poor | Too bad | Total | |
Clinical Cases | 0.291 (0.131) | 24 | 33 | 28 | 24 | 2 | 111 |
Clinical cases with image | 0.188 (0.087) | 1 | 1 | 13 | 17 | 0 | 32 |
Negative | 0.305 (0.126) | 14 | 8 | 18 | 10 | 0 | 50 |
Test | 0.263 (0.122) | 7 | 7 | 14 | 9 | 0 | 37 |
Total | 0.275 (0.128) | 46 | 49 | 73 | 60 | 2 | 230 |
Discrimination index IRT (categories) | |||||||
Discrimination Index IRT | Excellent | Good | Regular | Poor | Too bad | Total | |
Clinical Cases | 0.729 (0.471) | 23 | 32 | 31 | 22 | 3 | 111 |
Clinical cases with image | 0.416 (0.243) | 1 | 1 | 15 | 14 | 1 | 32 |
Negative | 0.783 (0.483) | 14 | 7 | 22 | 7 | 0 | 50 |
Test | 0.599 (0.335) | 4 | 9 | 16 | 7 | 1 | 37 |
Total | 0.677 (0.443) | 42 | 49 | 84 | 50 | 5 | 230 |
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Share and Cite
Baladrón, J.; Sánchez Lasheras, F.; Romeo Ladrero, J.M.; Villacampa, T.; Curbelo, J.; Jiménez Fonseca, P.; García Guerrero, A. The MIR 2018 Exam: Psychometric Study and Comparison with the Previous Nine Years. Medicina 2019, 55, 751. https://doi.org/10.3390/medicina55120751
Baladrón J, Sánchez Lasheras F, Romeo Ladrero JM, Villacampa T, Curbelo J, Jiménez Fonseca P, García Guerrero A. The MIR 2018 Exam: Psychometric Study and Comparison with the Previous Nine Years. Medicina. 2019; 55(12):751. https://doi.org/10.3390/medicina55120751
Chicago/Turabian StyleBaladrón, Jaime, Fernando Sánchez Lasheras, José María Romeo Ladrero, Tomás Villacampa, José Curbelo, Paula Jiménez Fonseca, and Alberto García Guerrero. 2019. "The MIR 2018 Exam: Psychometric Study and Comparison with the Previous Nine Years" Medicina 55, no. 12: 751. https://doi.org/10.3390/medicina55120751