BB cream is promoted as an all-in-one facial cosmetic product to replace serum, moisturizer, primer, foundation and sunblock. It can be worn alone as a tinted moisturizer, over serum and moisturizer as a regular foundation, and under powder, depending on the desired amount of coverage. 1  1 History.  2 Formulations.
Definition. Naturalistic observation is research that involves studying the subject of interest in its own environment, as it would occur in day-to-day life. The subject of interest may be human or non-human or it can be the behavior of living things or the interactions of non-living things with their environment.
What is naturalistic observation, and how does it attempt to avoid the problems associated with reactivity? 3. What are some examples of how naturalistic observation can be used to examine behavior? 4. Describe the case study method. When might a researcher use this method? What are some problems with its use? 5. What is a survey used for? What type of information does it provide? 6.