The average person forms theories with little if any intellectual rigor or scientific investigation, hence, those theories are often not valid.
Observations
Like every other scientists, Greeks based their theories on observations, experiments, proofs, evidence and more.
what are the relevance of knowledge theories of language development
criminological theory
how competitive Advantage theory is different from other theories.
The life after death position of any religion is as real as any other. Believers agree with it, non believers don't.
descriptive theory tells us the ways things are, but not what we ought to do Descriptive theories are theories that explain how international business (or for that matter any other business) took place in the past and how it is related to the present.
Some other theories humans have devised are:The Big Bang theory of cosmological expansionThe theories of general and special relativityThe germ theory of diseaseAtomic theory and quantum mechanics
Scientists n there theories are uncertain still of how the moon formed about'
Discuss capital structure theories and the appropriate theory for your organization if any
There are some mathematical theories that indicate that other alternative universes may exit; however, we cannot detect them at this time.
No, there are no other theories but the theory of evolution by natural selection that explain so much about evolution.
taylor and maslow theories
Yes
Adjust or discard those theories to reflect the new data.
They can add weight to or disprove theories whereas other kinds of theories - specially ideologies - are immune to challenge.