Final answer:
Unorganized marketing research methods lead to biased results, waste resources, and lack a structured approach. Well-planned methodologies ensure more reliable and generalizable findings and efficient use of resources. Option C is correct.
Step-by-step explanation:
Haphazard or unorganized methods of performing marketing research are considered ill-advised for several reasons. First, they can lead to biased results, which may not accurately reflect the target population. If the data collection is done carelessly, for instance, results could unfairly favor certain groups or outcomes.
Second, unstructured research methods may waste resources, including time and money, because they lack efficiency and direction. Lastly, the absence of a structured approach in research can lead to insufficient control over the process and potential difficulties in interpreting ambiguous or unexpected results.
Well-planned research methods, on the other hand, such as carefully selected sampling, offer several advantages. They contribute to the reliability and validity of the findings and ensure that the results can be more reliably generalized to the larger population.
Additionally, well-structured methodologies avoid the pitfalls of convenience sampling, which, while often easier, can result in highly biased outcomes. Therefore, employing a well-considered research design is crucial for obtaining valuable insights from the data collected.