 Belbin argued that the instruments were not intended for scholarly inquiry, but to inform management consulting practices.Additionally, Belbin maintains that the Belbin Team Inventory is not a psychometric instrument and hence applying tests for psychometric properties are irrelevant.There have been several other scholarly studies of the validity and reliability of Belbin's approach over the nearly 26 years since the Furnham-Belbin exchange, most of which have used the inventory in its original form.