Sorting by CONTROL variables is available for systematic and sequential selection methods, which include METHOD=SYS, METHOD=PPS_SYS, METHOD=SEQ, and METHOD=PPS_SEQ. Sorting provides additional control ...

Learn about the best ways to control variables in experimental design in biotechnology, such as defining, choosing, implementing, monitoring, adjusting, comparing, and reviewing your variables.

After you have controlled the extraneous variables and confounding factors in your research design, you need to evaluate how well you have done it.