A certificate of airworthiness or restricted category certificate of airworthiness may not be appropriate for an individual aircraft or aircraft type when it is not practicable to comply with the normal continued airworthiness requirements and the aircraft is to a design standard that is demonstrated to be capable of safe flight under defined conditions.
Educational qualifications were constructed from the derived variable which classified respondents' highest educational level (for that year) into one of ten categories: VET certificates I, II, III, IV, unknown, advanced vocational diploma, bachelor degree, graduate diploma, higher degree and no post-school qualification.
The following sentence 'I am uncertain if I have all that knowledge to be requested in the profession' illustrates an answer in the category 'The certificate and the profession frightened the student'.
Response categories included: 'School certificate Year 10 or less', 'Higher School Certificate Year 12', 'Technical and Further Education College/Community College certificate', 'Undergraduate university or college degree', and 'Post graduate university degree'.
We assign individuals in the 'not elsewhere included' category to the post-school certificate category.14.14
Vehicles are broken down into five categories for a certificate.
The levels of school education were broken down into three categories: low (no certificate or lower secondary education), middle (secondary education), and high (high school diploma).
Education was recoded into the dichotomous categories: up to certificate or diploma versus tertiary education; and type of care was recoded into the dummy variables: high care versus all other care types, low care versus all other care types and community care versus all other care types.
Based on questionnaire responses, highest educational qualification for the mother was collapsed into one of the five categories from none/ Certificate of Secondary Education (CSE, the lower level of two national school exams that were taken when these women were in school at age 16) to university degree.
The report concluded that grouping educational data into categories marked by certificates or diplomas was likely to result in the least bias.
