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Table 4 Variance components in PBQ stations and SQ stations

From: Past-behavioural versus situational questions in a postgraduate admissions multiple mini-interview: a reliability and acceptability comparison

Effect PBQ station variance components SQ station variance components
Communication skills Strengths and certainty of the answer Suitability for the programme Communication skills Strengths and certainty of the answer Suitability for the programme
c 0.07938 0.62001 0.54169 0.03904 0.24238 0.0148
  0.05823 0.11112 0.83229 0.01767 0.13619 0.71386
  0.05425 0.09862 0.12635 0.00121 0.10917 0.17173
s 0.00277    -0.00596   
  0.01335 0.03204   0.01873 0.02204  
  -0.00644 -0.00767 -0.00965 0.01717 0.00171 0.02427
e:s 0.004    0.01262   
  0.00046 -0.00523   -0.00677 0.01169  
  -0.00446 0.00262 0.00954 -0.01323 0.00185 0.09262
cs 0.09723    0.05788   
  -0.00469 0.09104   -0.03075 0.12412  
  0.03529 0.012 0.20196 0.01648 -0.02671 0.21227
ce:s 0.18831    0.23738   
  -0.012 0.28215   -0.00477 0.21138  
  0.00446 -0.02185 0.24046 0.02092 0.00969 0.18815
  1. N.B. – The negative variances, as they are very small in magnitude, could be considered as zero.
  2. c- Candidate, s- Station, e- Examiner, e:s- Examiners within Stations, cs- Candidates into Stations, ce:s- Candidates into Candidates within Stations, and random error.
  3. Bold figures indicate representatives of the largest source of variance amongst the effects.