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Appendix A: Searchable Dashboard - Exploratory analysis of VET Qualification Similarity
Figure 4: Screenshot of the Exploratory analysis of VET Qualification Similarity dashboard displaying the overall similarity of Certificate III in Individual Support to other qualifications across training packages
Source: NSC website, 2021
The Exploratory analysis of VET Qualification Similarity dashboard is an interactive tool which compares the similarity of one qualification to all other qualifications in training packages in Australia.
The searchable dashboard is available on the NSC website.
Accredited qualifications (those outside training packages) are not included in this tool.
The similarity of a qualification has been graded as Very High, High, Moderate, and Low.
These gradings are based on cut-offs of the similarity scores to all other qualifications based on the overall similarity focus.
The top 20 matches for each qualification were segmented into percentiles for their similarity scores:
- top 25 per cent of similarity scores graded as ‘very high’,
- second 25 per cent of similarity scores graded as ‘high’,
- third 25 per cent of similarity scores graded as ‘moderate’
- remainder of similarity scores graded as ‘low’.
Filters can be applied to view the rankings of similar qualifications based on:
- Title similarity
- Description similarity
- Keyword similarity
- Core unit Similarity
- Elective unit similarity.
Figure 5: The t-SNE algorithm produces a scatterplot showing a selection of training packages and how their qualifications relate to each-other in terms of similarity.
The t-SNE scatterplot in the discussion section (figure 3) highlighted links in qualifications for the training packages community services, health, and defence.
Figure 5 above presents a fuller picture of the qualification landscape by showing some of the training packages with the most qualifications.
As in figure 3, this shows how individual qualifications relate to each other in terms of similarity and how clusters of qualifications intersect within and across training package.