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A critical review is made of the present state of research into intelligence. Coming to the forefront of interest is en enframing of intelligence in a wider context of situational and cultural variables. Attention is drawn to the advantage of a more detailed delimitation of the construct of practical intelligence and the possible barriers of its application. Here also belongs the dichotomy of declarative and procedural ideas as also 'well-' and 'ill-defined' problems An analysis is made of cognitive and intellectual styles that permit an optimum interaction between an individual and the social environment. Through the application of mature and dialectical thinking past expectations regarding a striking decrement in advanced age are undergoing a change. A higher usability of the quantitative data on intelligence is made possible by implicit theories on intelligence. The importance of a search for parallel conceptions on intelligence is underlined by data from researches of intelligence in various cultures.