Answer:a. Participants may drop out of the study over time. b. They are subject to cohort effects.
Explanation: Participants Tend to Drop Out Over Time
When participants drop out of a study this is referred to as selective attrition. Since longitudinal studies may take a long time from months to years participants may drop out for various reasons. Some may no longer live in the area where the study is conducted or just don't feel motivated to continue anymore. Some may even pass away before the complete years of the study.
When the final group of the study no longer resemble the original sample this may have an impact on the validity of the study. Validity means the test actual measures what it claims to measure
Cohort effects refers to variations that occurs over time,within the group that shares similar characteristics such as year of birth or years of specific exposure. Over time people who share similar characteristics may begin to show variations for many reasons such as change of lifestyle amongst individuals.
It is quite rue. The same thing can’t be good for everyone. For example, the so called development may be considered development for human beings; but it is not development for the environment, flora and fauna.
Another example is building of thermal or nuclear power plants. Their development may give benefit to many people by supplying them the electricity. But the people whose land was acquired, and the people living in the vicinity of these power plants, might face certain inconveniences and hazards.
In conclusion we can say, what may be development for one may not be development for the other.
Read more on Brainly.com - brainly.com/question/17805628
Answer:
state transition diagram
Explanation:
In software engineering and digital electronics, a State Transition Diagram, or State Machine Diagram, is a representation of the state or situation an object may be in during the process execution of a system. With this, the object can move from an initial state to an final state through a transition. In other words, the state transition diagram shows how an object changes from state to state, depending on the events that affect the object.
Answer:
Rohingya people have no access to social care and education and mobility outside the Rakhine state is limited. Myanmar also has stringent birth and marriage rules, which only require two children from Rohingya in some Rakhine state cities and that prohibit the marriage of Rohingya.
Explanation: