Validation
The following is a summary of a validation study carried out by Dr Terry Kellard in May 2001 for Success Dynamics International Ltd, on Personality Survey System. Human Capital Development Ltd has acquired a perpetual licence to produce their branded version of this psychometric tool, under its trade name PPI™ (Personality Performance Indicator™). To ensure validity and reliability is maintained, the methodology, questionnaires, software and reports are shared by both systems.
Key Findings:-
VALIDITY - ' The items which make up the report can be (and are) used to describe attributes in people which are relevant to the work environment and have common acceptance. It has face validity. Second, it is valid because it is based upon an interesting and accurate model of human behaviour devised and elaborated by a psychologist – Professor Marsden of Columbia University'
RELIABILITY - The research concludes that the instrument is reliable. This paper sets out to establish two aspects of ‘validity’ – Construct Validity and Face validity both of which are essential before one proceeds to ‘predictive validity’ studies. The above presents a picture of a well researched and well thought out model of human behaviour. Given this body of research evidence the model upon which the Personnel Survey is based has high construct validity.
CONCLUSION - The construction of the test is in line with the forced-choice format (many other tests use a similar format) and, more importantly, it is based upon a useful and realistic model of human behaviour. Most critics of the instrument have not explored its origins or pedigree – it compares with the best.
Contact Human Capital Development for a full copy of the validation study.
Produced under licence from Adams & Associates (UK) Ltd
Key Findings:-
VALIDITY - ' The items which make up the report can be (and are) used to describe attributes in people which are relevant to the work environment and have common acceptance. It has face validity. Second, it is valid because it is based upon an interesting and accurate model of human behaviour devised and elaborated by a psychologist – Professor Marsden of Columbia University'
RELIABILITY - The research concludes that the instrument is reliable. This paper sets out to establish two aspects of ‘validity’ – Construct Validity and Face validity both of which are essential before one proceeds to ‘predictive validity’ studies. The above presents a picture of a well researched and well thought out model of human behaviour. Given this body of research evidence the model upon which the Personnel Survey is based has high construct validity.
CONCLUSION - The construction of the test is in line with the forced-choice format (many other tests use a similar format) and, more importantly, it is based upon a useful and realistic model of human behaviour. Most critics of the instrument have not explored its origins or pedigree – it compares with the best.
Contact Human Capital Development for a full copy of the validation study.
Produced under licence from Adams & Associates (UK) Ltd