How Can Sampling Error Be Reduced

Question

How can sampling error be reduced?
A) by increasing the sample size
B) by performing statistical tests on experimental data
C) by performing double-blind experiments
D) by monitoring changes in the experimental and control groups

Accepted Answer

Sampling error can be reduced by increasing the sample size. This is because as the sample size increases, the likelihood of obtaining a representative sample and reducing the impact of chance on the results also increases. Statistical tests, double-blind experiments, and monitoring changes in the experimental and control groups may help increase the validity of the results, but they do not directly address sampling error.