Answer:
Multiple treatment interference.
Explanation:
<em>Multiple treatment interference</em> is the name of the threat that reminds researchers that the research results for the last reward system may not generalize to the population of workers. This is because of multiple treatment interference threatens the internal validity of an experimental or quasi-experimental design. There is difficulty in assigning variance to one of the reward systems.
<span>. </span>What<span> was probably the key factor in the Aryan conquest of the </span>Indus Valley<span> civilization? ... For thousands of years, </span>passes<span> through the Hindu Kush </span>mountain range<span> ...
the best i can do (/o_o)/
</span>
From the peak of the housing bubble in Q2 of 2006, to the trough in Q1 of 2009, the Case-Shiller housing price index fell by just over <em><u>30%</u></em>. U.S. Stock prices (as proxied by the DJIA) fell by <em><u>50%</u></em> from October 2007 to March 2009.
A single client, single agency or single community can all be used as a single subject design for a social work tool.
<h3>What is a social work tool?</h3>
These are tools that enhance engagement in the social services so as to hace a more productive interactions between social service practitioners and the people they work with.
Example of a social work tool includes communication, organizational skills, boundaries, code of ethics, persuasion, coordination etc
Therefore, the Option D is correct.
Read more about social work tool
<em>brainly.com/question/27104427</em>
<h2>
Answer:</h2><h3>Studying history,</h3>
enables us to develop better understanding of the world in which we live. Building knowledge and understanding of historical events and trends, especially over the past century, enables us to develop a much greater appreciation for current events today.
<em>hope</em><em> </em><em>this</em><em> </em><em>help</em><em>!</em><em> </em><em>^</em><em>^</em>
