Answer:
Partial concealment
Step-by-step explanation:
The types of psychological measures. It includes;
1. Observational methods
2. Physiological measures
3. self-report measures
4. archival methods
Observational Methods
This is simply said to be an approach that is used to measure behavior of humans and non-humans and it is said to measures based on direct observation. Researchers usses different means of where and how to measure behavior through the use of observations.
Concealed Measurement
This is simply the use of hidden tools such as a recording device that is hidden so as to eavesdrops on conversations of people.
Disguised observation
This is simply a form of observation where an individual observes people's behavior without their knowledge. This form of observation raises some ethical issues as it violate privacy of people and their rights to decide whether they want to participate in research that is informed consent.
Partial concealment strategy
This is simply the act of informing people or subject to know that they are being observed, but not telling them the full information about which precise aspects are being recorded or sorted.
It is also defined as a observation strategy where the researcher withhold only who or what is being observed or some vital information.