This instrument is virtually similar to the SAP, but specialises in the field of driving and was specially developed to serve the Driver Fraternity in the economy of today. It is assessing the critical human factors that differentiate between people who perform the Driver function in a professional capacity (i.e., doing driving as a work/job – to earn a living by driving) in terms of a sound and multiple criteria of (work) success. The DAP deals with the ‘driver profession’ as a specific career entity in terms of the common denominators identified via objective and comprehensive research studies conducted over many years by researchers in different fields of specialty in a wide variety of economic industries (e.g., transport, mining, production, etc.) and involving drivers of virtually all types of vehicles – including trucks, tractors, taxis, busses, ambulances, fire engines, etc. – involving ‘general’ and ‘specialised’ vehicles.
The DAP is a competency test that consists of 100 test-items and specialising in serving the driver industry per sé. It consists of four main Parts and five Substructures as well as an Integrated Rating that provides the single best representative ‘score’ of the above measuring areas and an Adapted Rating which is an adaptation of the latter score according to the degree the testee tried to manipulate the outcome of this test. Each one of the substructures consists of competencies, skills, abilities and attributes that provided the users of this instrument with 35 scales to base their interpretation, diagnoses and decisions relative to the testee on. The DAP takes approximately an hour to complete.
Measuring Areas – Scales: Five Main Structures
Two Integrated Scales, i.e.
Purpose: Comprehensive measuring of Driving
As well as 27 supportive measuring areas.
Reliability: Ranging from 0.84 to 0.89 (Significant).
Validity: Ranging from 0.36 to 0.57 (Significant).
Fairness: No significant differences found by using the ‘Norming Process’ relative to four critical factors that are ‘known’ to be sensitive regarding fairness in the workplace, i.e., age, gender, ethnicity and language, and relating it to an external multiple criterion of success. (N=2602 & Significance on 0.001 level).
Readability & Ease of Comprehension: A maximum of sixth grade on the Fry Readability Graphs was adhered to”. There is no time-restriction applicable to the completion of the DAP and a trained administrator is always available to answer questions of the testee regarding the meaning of words and sentences.
The seven Readability actions were/are applied to the DAP.
The DAP can be used at a grade 6 schooling level. A ‘5’-sten (and below) score on the Lie-Detector scale should be considered to represent a knock-out score. Special emphasis should be placed on the instruction regarding the supplying of ‘correct’ information during the completion of the test. A ‘4’-sten (and below) on the Adjusted Security Rating scale, is considered a ‘screening-out’ score.
