Answer:A) Research about aptitude testing.
Explanation: The United States of America through its Department of Education uses Subparts to ensure protection of children and minors used or engaged in research by researchers, it gives certain exemptions especially as it is seen in SubpartD which gives exemptions for the use of children in research that concerns education tests such as RESEARCH ABOUT APTITUDE TESTING.
Answer:
Technology adopters
Explanation:
Technology adopters are the first to test and use a new technology before the majority of others begin to use them. When we talk about adoptation, we are referring to those individuals or group that uses new information, product, innovation or technology before others. In this case, cell phone use for microloans is prolific in areas like Nigeria, Brazil, India amongst others because of their level of technological adoption.
Answer:
C - larger; smaller
Explanation:
Marginal effects usually determine the change in a dependent variable (overall medical spending) based on a change in another variable that affects the dependent one (Spending on preventative care), all things remaining the same. If spending on preventative care is high, the overall medical bill should be low, assuming treatment costs, labor costs of health workers and all other factors are constant. If preventative care spending is low, the overall medical spending will be high.
The marginal effects of overall medical spending on health status is larger in the US. The marginal effects of preventative care spending on health is likely smaller than for overall spending.
Answer:
b. the principal's acceptance of responsibility for an agent's activities.
Explanation:
A principal may ratify or disown the activities of a person or an agent who acts above his/her mandate. Where a principal ratify the activity of the agent, it is called agency by ratification.
Sometimes, an agent may perform or carry out activities beyond his/her mandate eventhough this is stated in the law, the principal is also empowered to ratify or disapprove such activities as there are rules governing such approval or disapproval.
Rules governing agency by ratification are ;
-There must be contractual capacity on the part of the person who is ratifying
- The person acting as agent must be intended to be seen as such
-The principal must exist at the point activity is being carried out
-The principal must have full knowledge of the material fact.
-The ratification may be implied or express.
