Block 3A research design: part1: causation and control, part2: experimental design, part3: design of surveys,acknowledgements

Corporate Author: The Open University press
Format: Book
Language:English
Published: Milton Keynes: The open university, 1981
Series:Research methods in education and the social sciences
Subjects:
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245 0 0 |a Block 3A research design:   |b part1: causation and control, part2: experimental design, part3: design of surveys,acknowledgements 
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300 |a 111p. :  |b ill 
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500 |a 1979, reprinted 1981 
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650 1 0 |a RESEARCH METHODS 
650 1 0 |a SURVEYS 
650 1 0 |a Έρευνα 
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