If applicable, decide on a control group for the experiment. This group will not be exposed to the independent variable and will serve as a baseline for comparison.

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Planning the experiment for a lab report groups four sequential sub-steps: (1) select the variables by identifying the independent, dependent, and control variables; (2) choose a control group to serve as a baseline for comparison; (3) determine the sample size needed to obtain statistically significant results; and (4) outline the detailed procedure, including how data will be collected and recorded.

Steps of Writing Lab Reports Experimental Findings: Plan the Experiment

Decide how many subjects or samples will be needed to achieve statistically significant results.

Writing Lab Reports Plan the Experiment - Step 3: Determine the Sample Size

Before conducting the experiment, write its procedure as a clear sequence of steps. Specify how each step will be performed and how observations and numerical data will be collected and recorded.

Writing Lab Reports Plan the Experiment - Step 4: Outline the Procedure

Identify your independent variable (what you will change), dependent variable (what you will measure), and control variables (what you will keep the same).

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