Table 2

Summary of construct validity coefficients
Outcome Predictor
A-levels GCSEs/O-levels Aptitude tests
First year BMS .809 n = 3 (CI .501; .935) .332 n = 3 (CI .024; .583) .245 n = 1 (CI .207; .276)
BMS overall .744 n = 4 (CI .518; .872) .361 n = 4 (CI .305; .413) .065 n = 1 (CI −.049; .180)
All BMS .772 n = 7 (CI .627; .865) .338 n = 7 (CI .205; .459) .164 n = 2 (CI −.031; .347)
Finals .625 n = 5 (CI .449; .754) .400 n = 4 (CI .274; .513) .226 n = 2 (CI −.093; .503)
All Undergraduate except first year BMS .684n = 9 (CI .561; .778) .379(n = 8) (CI .316; .439) .147(n = 3) (−.065; .346)
All Undergraduate .723n = 12 (CI .616; .803) .359n = 11 (CI .255; .455) .181n = 4 (CI .055; .302)
MRCP(UK) Part 1 (written) .661 n = 2 (CI .523; .765) .433 n = 2 (CI .098; .680) .168 n = 1 (CI .044; .308)
MRCP(UK) Part 2 (written) .502 n = 2 (CI −.030; .812) .372 n = 2 (CI .153; .555) .358 n = 1 (CI .174; .559)
MRCP(UK) Clinical .303 n = 2 (CI .010; .547) .498 n = 2 (CI .068; .772) .226 n = 1 (CI .007; .422)
All MRCP .506 n = 6 (CI .301; .666) .447 n = 6 (CI .300; .573) .226 n = 3 (CI .108; .339)
Specialist Register .627 n = 4 (CI .450; .756) .119 n = 3 (CI −.044; .276) .258 n = 2 (CI -.171; .605)
All postgraduate .556n = 10 (CI .426; .663) .316n = 9 (CI .148; .466) .243n = 5 (CI .090; .385)
All undergraduate and postgraduate .656n = 22 (CI .574; .726) .342n = 20 (CI .258; .420) .208n = 9 (CI .124; .289)

Construct validities are combined meta-analytically as Fisher’s Z-transforms and then back-transformed to the conventional correlation scale. The number of construct validities and the 95% confidence interval (CI) for the construct validities are also shown. Where n = 1 the confidence intervals are those for the single estimate.

McManus et al.

McManus et al. BMC Medicine 2013 11:243   doi:10.1186/1741-7015-11-243

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