Final answer:
The notion that managers should not define objectives in specific numerical terms is false. In managing processes, setting clear, measurable, numerical objectives is actually essential for effective control and evaluation.
Step-by-step explanation:
The statement 'In the context of controlling, managers should avoid defining objectives in specific numerical terms' is false. In business management, setting specific, measurable goals is actually critical to the control process. Well-defined objectives provide a clear metric for success and allow for better monitoring, evaluation, and adjustments. Defining objectives in specific numerical terms enables managers to track progress precisely and make informed decisions.
Regarding control and test groups in experimental design, option c is accurate. The control group must be as identical as possible to the test group except for the intervention being tested to ensure that any differences in outcomes can be attributed to the intervention itself, rather than other variables. This is essential to maintaining the validity of the experiment.