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Research & Evaluation of the GP Selection System

This section is a resource for accessing key research evidence regarding the GP selection process which has successfully completed several years of national recruitment since 2006. Whilst not exhaustive, the research evidence presented below outlines the development of the GP selection system and indicates how it follows best practice.

The History of the National GP Selection System

Prior to the development of the national GP selection system, research showed that various selection methods were applied across different deaneries which lacked standardisation. Directors of Postgraduate GP Education were therefore given responsibility for developing a selection and training system that ensured the process of recruitment demonstrates fair and open competition, and observes best practice in providing equal opportunities for all applicants1.

Subsequently, a collective commitment was made to work towards standardisation of recruitment methods across deaneries which resulted in the national process.

The National GP Selection System

In keeping with best practice selection from other occupations, a multi method job analysis was conducted by Professor Fiona Patterson (Work Psychology Group) and colleagues in 2000. A thorough job analysis determines the relevant knowledge, skills, abilities and attitudes associated with competent performance in a job role and informs the design of selection methods which are accurate (reliable), relevant (valid), objective and standardised. The Patterson analysis was used as the basis of a new, national, selection process, and continues to evolve from that base.

The GP selection process currently uses national machine markable (MMT) short-listing tests, together with selection centre methodology which has been developed incrementally. The development and successful implementation of the MMTs, with clinical problem-solving and situational judgement components, has been a significant innovation in postgraduate specialty selection.


1 NHS Executive (2000) Enhanced Management Arrangements for General Practice Vocational Training, 1999/230 Ed.

The Importance of Validation Studies

UK general practice has undertaken long-term validation of its selection methods to ensure accuracy, fairness and cost effectiveness.

Evaluation from the candidate’s perspective consistently demonstrates that applicants have confidence in the relevance and fairness of the process.

This section is a resource for accessing key research evidence regarding the GP selection process which has successfully completed several years of national recruitment since 2006. Whilst not exhaustive, the research evidence presented below outlines the development of the GP selection system and indicates how it follows best practice.

Title Year Summary +/- Comments
1. DEVELOPMENT
Patterson, F., Ferguson, E., Lane, P., Farrell, K., Martlew, J. and Wells, A., 2000. A competency model for general practice: implications for selection, training, and development. Br J Gen Pract, 50(452), pp.188-193. 2000 In the UK, organisational psychology principles are used to identify and develop selection criteria and methods by identifying core and specialty specific competencies. Early work included this 2000 paper: 3 studies from a single Midlands based Practice N= 31-35, in 2000. 11 competencies underlying good GP were identified as necessary for job performance  Article
Patterson, F., Ferguson, E. and Thomas, S., 2008. Using job analysis to identify core and specific competencies: implications for selection and recruitment. Medical Education, 42(12), pp.1195-1204. 2008 Using job analysis in this way Patterson et al. (2008) later undertook three multisource, multimethod independent studies to explore core and specific competencies in anesthesia, obstetrics and gynecology and pediatrics. The outcome comprised 14 general competency domains common to all specialties. However, there were significant between‐specialty differences in both definitions of domains and the ratings of importance attached to them.  Article
Patterson, F., Lievens, F., Kerrin, M., Munro, N. and Irish, B., 2013. The predictive validity of selection for entry into postgraduate training in general practice: evidence from three longitudinal studies. Br J Gen Pract, 63(616), pp.e734-e741. 2013 The 2008 study was replicated by Patterson, Tavabie et al. (2013) to explore competencies for general practice training which resulted in 11 competency domains, of which empathy and perspective taking, communication skills, clinical knowledge and expertise and professional integrity were rated as the most important domains.  Article
Patterson, F., Zibarras, L., Kerrin, M., Lopes, S. and Price, R., 2014. Development of competency models for assessors and simulators in high-stakes selection processes. Medical teacher, 36(12), pp.1082-1085. 2014 Patterson et al.(2014) later extended this competency model approach to examine specific knowledge, skills and attributes linked to simulations in British GP Selection Centres (Stage 3 of the national Recruitment process).  Article
2. DESIGN, PILOT & IMPLEMENT
Burke, S., Davison, I., Brown, C., Bullock, A. and Kelly, S., 2005. The involvement of lay people in selection to general practice training schemes. Education for Primary Care, 16(4). pp. 450-457 2005 This 2005 paper showed high correlation between lay assessor and medical assessor scores, reflecting a shared agreement in the best candidates. In the main, these ‘Lay’ people were found to have some medical or educational connection. Lay assessors continue to be used in Selection Centres as part of the GP recruitment process, and many medical disciplines have now adopted a similar approach.  Article
Patterson, F., Baron, H., Carr, V. Developing a national clinical selection test for General Practice. (Technical Report)(2006). 2006 This documents the creation of a case bank of Clinical Problem Solving (CPST) items, and in 2007, one for the Situational Judgment Test (SJT). These item types are mapped to target competencies derived from job analysis, and together make up Stage 2 (machine marked test) of the national GP recruitment process.
Patterson, F., Baron, H., Carr, V., Plint, S. and Lane, P., 2009. Evaluation of three short‐listing methodologies for selection into postgraduate training in general practice. Medical education, 43(1), pp.50-57. 2009 This compares three short-listing methodologies: clinical problem-solving test (CPST); structured application form (AFQ) and the novel situational judgement test (SJT). The optimum short-listing methodology was found to be a combination of the CPS and the SJT. The SJT replaced the AFQ in GP selection in 2007. The SJT/CPST combination remains the short-listing methodology for selection into GP training. NB this paper also describes the UK Selection Centre approach, referring to the three job-relevant simulations at the time (patient consultation, group and written simulation exercises). The simulations have since changed in type/format.  Article
3. EVALUATION & VALIDATION
Patterson, F., Baron, H., Carr, V., Plint, S. and Lane, P., 2009. Evaluation of three short‐listing methodologies for selection into postgraduate training in general practice. Medical education, 43(1), pp.50-57. 2009 SJT Reliability. This paper is described above, but included in this section for a different function. In this pilot SJT internal reliability was reported in the range of r.0.80–0.83  Article
Patterson, F., Carr, V., Zibarras, L., Burr, B., Berkin, L., Plint, S., Irish, B. and Gregory, S., 2009. New machine-marked tests for selection into core medical training: evidence from two validation studies. Clinical Medicine, 9(5), pp.417-420. 2009 CPST reliability shown to be good. r.0.85–0.89
NB CPST correlation with the SJT shown to be varying in the range of r.0.39 to r.0.53 (Patterson, Baron, et al. 2009; (Patterson, Lievens, et al. 2013).
 Article
Ahmed, H., Rhydderch, M. and Matthews, P., 2012. Can knowledge tests and situational judgement tests predict selection centre performance?. Medical education, 46(8), pp.777-784. 2012 The CPST and SJT are shown to be predictive of performance in job simulations at Selection Centre (SC). The study provide evidence for their continued use in selection for general practice training. Subsequently, their predictive validity was shown to hold good for exit level GP training.  Article
Koczwara, A., Patterson, F., Zibarras, L., Kerrin, M., Irish, B. and Wilkinson, M., 2012. Evaluating cognitive ability, knowledge tests and situational judgement tests for postgraduate selection. Medical education, 46(4), pp.399-408. 2012 In terms of operational validity and candidate acceptance, the combination of the current CPST and SJT proved to be the most effective administration of tests in predicting selection outcomes. In terms of construct validity, the SJT was the best single predictor of subsequent performance in the Selection Centre (SC).  Article
Patterson, F., Zibarras, L., Kerrin, M., Lopes, S. and Price, R., 2014. Development of competency models for assessors and simulators in high-stakes selection processes. Medical teacher, 36(12), pp.1082-1085. 2014 This article on selection in the context of an assessment or selection centre is a qualitative study exploring competency models to improve uniformity and calibration of the overall process. Most of the world literature was (and remains in 2018) quantitative, so this is unusual.  Article
4. ACCEPTABILITY & FEASIBILITY
Patterson, F., Zibarras, L., Carr, V., Irish, B. and Gregory, S., 2011. Evaluating candidate reactions to selection practices using organisational justice theory. Medical education, 45(3), pp.289-297. 2011 Candidates generally have positive reactions during both short-listing and SC phases. All selection methods were considered job relevant and both phases fair. The CPST was considered more job relevant than the SJT, and the SC phase was rated as fairer than the short-listing stage. These findings supported previous research in other occupational settings. Candidate reactions were found to improve between 2007 and 2009 for short listing (machine marked) methods whilst the then-current CS was consistently rated as the most job-relevant selection method. Since this study SJTs have become even more widely accepted and are now used routinely from the undergrad stage.  Article
Koczwara, A., Patterson, F., Zibarras, L., Kerrin, M., Irish, B. and Wilkinson, M., 2012. Evaluating cognitive ability, knowledge tests and situational judgement tests for postgraduate selection. Medical education, 46(4), pp.399-408. 2012 This paper is described above, and included in this section for a different function. In this large sample (n.2947), there was a good agreement among respondents (>60%) that the content of SJTs was clearly relevant to GP training and appropriate for the entry level they were applying for. One third agreed that the test gave them sufficient opportunity to indicate their ability for training and would help selectors differentiate between applicants.  Article
Patterson, F., Knight, A., Dowell, J., Nicholson, S., Cousans, F. and Cleland, J., 2016. How effective are selection methods in medical education? A systematic review. Medical Education, 50(1), pp.36-60. 2016 A systematic review of selection methods reported that there is acceptability evidence in the organizational psychology literature for the SJT (not specific to this exam).  Article
5. PREDICTIVE VALIDITY
hmed, H., Rhydderch, M. and Matthews, P., 2012. Do general practice selection scores predict success at MRCGP? An exploratory study. Education for Primary Care, 23(2), pp.95-100. 2012 The score for overall performance at selection achieved statistically significant correlation with examination performance (r.0.49) for the Applied Knowledge Test (AKT) and r.0.53 for the Clinical Skills Assessment (CSA) modules of the exit, licensing MRCGP exams.  Article
Patterson, F., Lievens, F., Kerrin, M., Munro, N. and Irish, B., 2013. The predictive validity of selection for entry into postgraduate training in general practice: evidence from three longitudinal studies. Br J Gen Pract, 63(616), pp.e734-e741. 2013 Patterson et al. found that the CPST and the SJT correlate with the AKT at r=0.73 and 0.43, respectively (uncorrected), and the CSA at r=0.38 and 0.43, respectively (uncorrected). The Selection Centre was found to correlate with the CSA at r=0.32  Article
Patterson, F., Kerrin, M., Baron, H. and Lopes, S., 2015. Exploring the relationship between general practice selection scores and MRCGP examination performance. Final Report to General Medical Council. 2015 This detailed analysis for the GMC showed findings comparable to, and replicating, previous validity study results. The CPST and SJT correlate 0.73 and 0.46 with the AKT, again uncorrected for restriction of range. The correlations for the CSA are 0.49 and 0.54, respectively, which is slightly stronger than previously found. Similarly, scores from the Selection Centre correlate at r=0.42 (uncorrected) with the CSA. All of these results, including previously reported findings, are statistically significant at p < 0.001. Findings predicted applicants with top CPST/SJT test scores as also doing well at SC. The suggestion was made to ‘fast track’ those candidates into offers of training, bypassing the SC.  Article
6. REVIEWS
Davison, I., Mcmanus, C., and Taylor, C., 2016. Evaluation of GP Specialty Selection [Online]. 2016 An in-depth review of the national selection process for GP training at that time, with reference to cost effectiveness and suggestions to consider for continued quality improvement. Overall affirming, with significant constructive challenges that were subsequently considered and, where appropriate, addressed.  Article
Roberts, C., Khanna, P., Rigby, L., Bartle, E., Llewellyn, A., Gustavs, J., Newton, L., Newcombe, J.P., Davies, M., Thistlethwaite, J. and Lynam, J., 2018. Utility of selection methods for specialist medical training: A BEME (best evidence medical education) systematic review: BEME guide no. 45. Medical teacher, 40(1), pp.3-19. 2017 A systematic review of international measures of selection in postgraduate medicine. Very affirming for the UK GP system. Offers suggestions for a research agenda which resonates with the 2018 updated Ottawa consensus statement.  Article
Patterson, F., Roberts, C., Hanson, M.D., Hampe, W., Eva, K., Ponnamperuma, G., Magzoub, M., Tekian, A. and Cleland, J., 2018. 2018 Ottawa consensus statement: Selection and recruitment to the healthcare professions. Medical teacher, pp.1-11. 2018 Latest Ottawa consensus statement. This notes that most research has been on the psychometric behaviour of selection instruments, calling for more discussion as to the strategic aims which should underpin development.  Article