the three models of communication: linear, interactive, and transactional. Interactive- basically the same as linear, except the interactive model of communication includes feedback. Introduction of feedback indicates that communication is a two-way progress.
Is there a passage or no?
Answer: Less important than later experiences
The caste system in ancient India was used to establish separate classes of inhabitants based upon their social positions and employment functions in the community.
Descriptive investigations involve collecting data about a system, but not making tests or experiments.
Making tests belongs to experimental investigations.
Descriptive investigations aim to draw conclusions from observations of the fenomena, while experimental investigations design tests that let the researcher to compare results on different conditions with a control situation.
There is also the so called comparative investigations which collect data from under different conditions but do not include the control situtation.
