Likert Items: Should(n’t) We Really Care?

Do we really care about Biodiversity?

This paper addresses from an economic perspective the issue of global biodiversity conservation. It challenges the perception that the world really cares a great deal about biodiversity and is prepared to pay the full cost of maintaining this stock of natural capital. Despite the existence of a plethora of international agreements there still seems to be a global ‘deficit of care’ surrounding e...

Likert or not, we are biased.

To the Editor: I read with interest the recent article by Baker regarding the value of normalizing resident evaluation scores to eliminate individual faculty evaluator bias. Without unduly undermining the importance of this study, I have concern about the statistical handling of Likert scores. Likert scores were used to create individual faculty member mean scores, faculty score standard deviat...

Do We Really Need Consultants?

Appraisal of Statistical Practices in HRI vis-á-vis the T-Test for Likert Items/Scales

Likert items and scales are often used in human subject studies to measure subjective responses of subjects to the treatment levels. In the field of human-robot interaction (HRI), with few widely accepted quantitative metrics, researchers often rely on Likert items and scales to evaluate their systems. However, there is a debate on what is the best statistical method to evaluate the differences...

vitamin and mineral supplements: do we really need them?

in the united states, 40 – 50% of the men and women 50 years of age or older regularly use multivitamin/mineral (mvm) supplements, making the annual sales of these supplements over $11 billion. however, the question remains whether using mvm supplements is beneficial to health. this article reviews the results of randomized studies of mvm supplements and individual vitamins/mineral supplements ...