abstract idea focuses on more general things.
concrete refers to realities or actual instances-- in focuses on the particular, rather than the general.
It is an abstract noun.
how to distinguish between quasi-experimental and nonexperimental research
There is no abstract noun form for the concrete noun 'wall', a word for a physical structure.The noun wall can be used in an abstract context, for example:His jealousy is becoming a wall between us.
The noun 'gap' is an abstract noun as a word for a break in time or activity.The noun 'gap' is a concrete noun as a word for a physical space between things.
The noun leap is a common noun, a general word for any kind of leap.The distinction is not between abstract and common nouns, but between abstract and concretenouns.A leap is a physical action, leaping, a concrete noun.However, it can be a metaphorical term, an abstract noun, when it is not a physical act, as in "a leap of faith."
C is a systems language for precise, concrete development. BASIC and its derivatives are teaching and prototyping languages for rapid, abstract development.
I think you are asking the difference between abstract nouns and concrete nouns. A concrete noun is something that can be seen or touched like a cat or a tree. An abstract noun is something more intangible like happiness or peace.
Concrete here reefers to "things", physical objects (which can be touched). And "abstract" refers to concepts.
System is an abstraction. It is a relationship between things, rather than a concrete object.
There is no difference with method declaration and implementation between abstract and non-abstract classes. You do the exact same thing when writing a concrete method in either an abstract or non-abstract class.
It is an abstract noun.
how to distinguish between quasi-experimental and nonexperimental research
research
concrete imagery is where the implicit reticence of an empirical verb past/present participle of a understandable colloquial is undoubtedly infallible. abstract is the contrary.
One is abstract and the other is concrete (not literally, of course).
extensive research is empirical and concrete. Large samples are taken to capture variabilities. Intesive research, on the other hand, is abstract and theoretical. Small samples are taken to uncover underlying casual mechanisms. Intensive research is much more in depth and often leads to case studies research
Abstract words refer to concepts, ideas, or emotions that cannot be physically experienced, like love or justice. Concrete words, on the other hand, refer to tangible objects or things that can be perceived through the senses, like table or book.