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Table 6 Differences between mean self-assessment scores and mean colleague scores (supervisor (a), peer (b) and report (c)): t-tests for equality of means

From: An evidence-based approach to understanding the competency development needs of the health service management workforce in Australia

  t df Sig. (2-tailed) Mean Difference 95% CI of Difference
Lower Upper
(a) Self- versus supervisor assessment
 Competency 1 −1.410 181 0.307 −0.176 −0.423 0.071
 Competency 2 −1.682 181 0.094 −0.193 − 0.419 0.033
 Competency 3 −3.166 181 0.002 − 0.357 − 0.579 − 0.134
 Competency 4 − 0.888 181 0.375 − 0.087 − 0.280 0.106
 Competency 5 −0.546 181 0.586 −0.057 −0.261 0.148
 Competency 6 −0.526 181 0.600 −0.064 −0.302 0.175
 Competencies combined −1.705 181 0.090 −0.172 −0.371 0.027
(b) Self- versus peer assessment
 Competency 1 −4.453 178 < 0.0005 −0.461 −0.665 − 0.257
 Competency 2 −4.673 178 < 0.0005 −0.471 −0.670 − 0.272
 Competency 3 −6.177 178 < 0 < 0.0 < 0.0005 −0.621 −0.821 − 0.423
 Competency 4 −2.578 178 0.011 −0.221 −0.389 − 0.052
 Competency 5 −2.624 178 0.009 −0.242 −0.424 − 0.060
 Competency 6 −3.169 178 0.002 −0.318 −0.516 − 0.120
 Competencies combined −4.260 178 < 0.0005 −0.375 −0.549 − 0.201
(c) Self- versus report assessment
 Competency 1 −4.067 175 < 0.0005 −0.476 −0.707 − 0.245
 Competency 2 −4.909 175 < 0.000 < 0.0005 −0.552 −0.774 − 0.330
 Competency 3 −6.940 175 < 0.000 < 0.0005 −0.761 −0.977 − 0.545
 Competency 4 −2.752 175 0.007 −0.295 −0.507 − 0.084
 Competency 5 −3.288 175 0.001 −0.360 −0.576 − 0.144
 Competency 6 −2.960 175 0.004 −0.346 −0.576 − 0.115
 Competencies combined −4.577 175 < 0.0005 −0.476 −0.681 − 0.271
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