What are some common errors in research methodology?

What are some common errors in research methodology?

Common errors include poor sampling, lack of control groups, and not clearly defining variables.

Can you explain why poor sampling is a problem?

Poor sampling can lead to biased results, making it difficult to generalize findings to a larger population.

What about the importance of control groups?

Control groups are essential for comparing results and determining the effect of the independent variable.

How can researchers avoid these errors?

Researchers can avoid these errors by carefully planning their studies, using appropriate sampling methods, and conducting pilot tests.