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+idiographic provides rich detailed data
Qualitative data that offers insight into unique human experiences
+idiographic used for generating hypothesis
Explores behaviour in depth so provides new directions for research (case study-genie(feral child) contributed to understanding critical periods
-I inability to generalise findings
as based on single case studies
-I subjective interpretations
Researchers bias as depends on subjective interpretation of case study
+NOMOTHETIC
can be generalised as uses quantitative methods of multiple groups
+N scientific approach
Uses quantitative methods, standardised procedures to increase validity/repeatability
-N not in depth
As only used quantitative data