Question

An experiment that fails to include a control variable is poor science due to

1.individual moral
2.lack of replication
3.nothing to compare the results to
4.personal bias

Answer 1

The correct answer is: 3. nothing to compare the results to.

Step-by-step explanation:

When conducting a scientific experiment, including a control variable is essential to establish a baseline or reference point for comparison. The control variable serves as a standard against which the results of the experimental variable are measured. Without a control variable, there is no basis for comparison, making it difficult to determine the effectiveness or impact of the experimental variable. This absence of a comparison undermines the validity and reliability of the experiment, resulting in poor scientific practice.

Answer 2

Explanation:The experiment that fails to include a control variable is poor science due to "nothing to compare the results to".When conducting a scientific experiment, it is essential to have a control variable. The control variable is an element in an experiment that is held constant or unaltered. It provides a basis for comparison to measure the effect of the independent variable accurately. It helps to rule out other potential explanations for the results obtained.The lack of a control variable makes it difficult to determine whether the observed changes in the dependent variable were due to the independent variable or other factors. Therefore, it is crucial to include a control variable in scientific experiments.