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Primitive Concept
- Not easily explained
- Defined by example only
- Ex.: colors (red, blue, green), soft, hard
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Concrete Concept
- Simple
- Observable - directly or indirectly
- Can be seen, felt, heard
- Limited by time and space
- Ex.: chair, table, tree, bird-chirping
-
Abstract Concept
- Not observable - directly or indirectly
- Not measurable or testable
- Described in terms of observable concepts
- Not limited by time and space
- Ex.: love, hope, desire, fear
-
Variable Concept
(continuous)
- Describes phenomena based on dimensions of that phenomena
- Measurement on a scale
- Ex.: BP, pain
-
Non-variable Concept
(Discrete)
- Based on category or characteristic
- Can be single-variable categories
- Ex.: gender, marital status, sex, ethnicity; answer yes-or-no question
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