intelligence via hierarchical approach - vernon and carroll

• vernon: catellis student described several different levels of intelligence. vernons propostion was that both spearman and thurstone had not considered the existence of group factors, that lunked g to specific intelligence abilities
• vernon argued that intelligence was various sets of abilities that could be described at various levels of generalisability (i.e. from specific to grouped towards a general factor )
• verons theory was the elaboration of g to a series of group factors in between g and s factors
• Vernon

  • V:ed : a factor that represents largely verbal/educational intelligence including verbal-numerical-educational abilities
  • K:m : a factor compromised of spatial/mechanical intelligence including practical-mechanical-spatial-physical abilities
• john b carroll

  • based on analysis he proposed three hierarchial levels to intelligence which he termed stratums
• john b carrorls stratums

  stratum 111 was the general level of intelligence representing general intellectual ability , similar to g

  • Fluid intelligence, crystallised intelligence, general memory and learning, broad visual perception, broad auditory perception, broad retrieval ebility, broad cognitive speediness and processing speef
• john b carrolls stratums

  Stratum 11 was made up of 8 broad factors arising from these specific abilities

  • Fluid intelligence, crystalised intelligence, general memory and learning, broad visual perception, broad auditory perception, broad retrieval ability, broad cognitive speediness and processing speed
• carrols stratums

  stratum 1 comprised specific levels of intelligence