An important aspect of supervision is which attempts to insure that the interviewers are strictly following the sampling plan rather than selecting sampling units based on convenience or accessibility.

sampling control.

Explanation:

According to my research on different leadership requirements, I can say that based on the information provided within the question an important aspect of supervision is sampling control. In other words (like mentioned in the question) this is the process of controlling employees to make sure they are following the process/plan correctly instead of working in a way that is more convenient for them.

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acts of terrorism occur globally. the united nations global counter-terrorism strategy was created in order to build adequate systems of support and solidarity with victims of terrorism. here´s a summary of the proposed key themes: the importance of giving victims a face and a voice; protecting their dignity; giving victims legal status and defending their legal rights; providing victims with medical, psycho-social and financial support; building solidarity with victims; improving media coverage of victims; and focusing on the link between victims and counter-terrorism efforts more generally.

the correct answer is the following is a list of inventions made in the medieval islamic world, especially during the "islamic golden age" (8th to 13th centuries),[1][2] as well as the late medieval period, especially in the emirate of granada and the ottoman empire.

science and technology in the islamic world adopted and preserved knowledge and technologies from contemporary and earlier civilizations, including persia, india, china, and greece-roman antiquity, while making a number of improvements and innovations.