Can you trust the latest findings? It depends….

by Jean Rhodes In a recent review of meta-analyses, researchers Alan Cheung and Robert Slavin found that certain types of evaluations yielded larger effect sizes than others. Larger effects emerged in studies where the researchers created their own questionnaires, instead of relying on well-validated questionnaires. Homegrown questionnaires might include items that are very specific to the knowledge and […]

What is the scientific method?

The term “scientific method” refers to certain guidelines that ensure that research is not shaped by personal beliefs and is grounded in measurable (empirical) evidence. The techniques used in the scientific method consist of measurement, such as surveys, experiments, or systematic observation. The following are the three steps in the scientific method: Step One: Hypothesis The first step in […]