Answer:B. Children's sharing behavior may improve with the simple passage of time.
Explanation:Internal and external validity makes the research trustworthy and meaningful.
Internal validity refers to when cause and effect relationship of a treatment and outcome can be trusted.Internal validity also occurs when there is no alternative explanation for a finding.
This means you have to be sure that there are no other factors in play with your research that everything is a result of what you have put to the research and nothing else.
Internal validity is then how confident one is to the result of the research.
Answer:
When a cold polar air mass meets a warm tropical air mass they do not mix - they form fronts. The colder air mass is heavier than the warmer air mass, therefore the lighter, warmer air rises over the top of the heavier, colder air. As the warm air is forced to rise it cools.
Explanation:
i hope this is helpful for you
Could it be bribery? (not too sure if I spelled that right)
Answer: Broaden and build theory
Explanation: Broaden and build theory describes about the happiness and joy is responsible for extending one's interaction and awareness to think, improving creativeness, enhance actions etc. It determines and encourages about the positive and happy emotion.
The observation mentioned in the question is indicating about the broaden and build theory of positive emotions. It is describing the happiness as the source of open thinking, looking positively on those events that were overlooked before etc.