In planning an experimental trial,the investigator identifies a cause-effect comparison to be tested as a research hypothesis.

Question

Quizplus · Accepted Answer

In planning an experimental trial, the investigator typically identifies a cause-effect comparison that can be tested as a research hypothesis. The hypothesis is a statement about the expected relationship between variables, and the experimental trial is designed to gather data to support or refute this hypothesis. By manipulating one variable (the independent variable) and measuring the effects on another variable (the dependent variable), the investigator can determine whether there is a causal relationship between them.

In Planning an Experimental Trial,the Investigator Identifies a Cause-Effect Comparison