Skip to main content
. 2020 Nov;12(11):6797–6805. doi: 10.21037/jtd-20-2181

Table 1. Different sources of validity evidence for Structured Progress based on Messick’s validity framework (19).

Source of evidence for validity Description of source Validity evidence for structured progress
Content The test content measure what it is supposed to measure Structured progress (SP) was developed by two pulmonary consultants (PFC and UB) with more than 10 years’ experience in bronchoscopy, a thoracic surgeon and professor of medical education (LK) and a biomedical engineer with more than 5 years’ experience in simulation (MBSS). SP indicates the number of times the operator progressed from one segment to the immediate succeeding segment. Passing from segment #1 to #2 gives one point but going from segment #2 to #1 gives zero point. It ranges from 0–18 points, corresponding to 18 segments in the bronchial three.
Response process Integrity of data should always be maintained. Test administration should be controlled or standardized at a maximum level possible. All trials were performed in a controlled, simulated environment, each rating was blinded and double–checked with the video recording by the primary investigator KMC.
Internal structure This refers to the reliability of the test results. The internal consistency of the test items should result to similar scores when measuring the same construct. There was a correlation between all three outcome measures: Structured progress, diagnostic completeness, and AIT both across and within different groups of experience. Thereby, test items result to similar scores when measuring competency in bronchoscopy.
Relation to other variables Assessment scores should correlate with known measures of competence Structured progress was able to significantly differentiate the performances among the different levels of experience with median scores ± interquartile range for novices, intermediates and experienced of 5±3, 7±4.75 and 11±5, respectively (P<0.001)