Current erosion indices—flawed or valid?

Faculty Members’ Evaluation by Students: Valid or Invalid

Introduction: Evaluation of university faculty members which is aimed to improve teaching quality is performed through several methods. One of the most common and conflicting methods is faculty evaluation by students. This method is commonly used in most universities in spite of controversy over its validity. This paper presents a glance at the current research literature on the viewpoints of f...

Forgetting: trace erosion or retrieval failure?

A series of lists of random words was presented. Following each list, the subject attempted to recall the words of the list prior to the list just presented. Recall probability for a given word depended on the length of the list in which it was embedded, not on the length of the list intervening between presentation and test. These results indicate that forgetting is a failure in the memory sea...

Net risk reclassification p values: valid or misleading?

BACKGROUND The Net Reclassification Index (NRI) and its P value are used to make conclusions about improvements in prediction performance gained by adding a set of biomarkers to an existing risk prediction model. Although proposed only 5 years ago, the NRI has gained enormous traction in the risk prediction literature. Concerns have recently been raised about the statistical validity of the NRI...

Raloxifene Improves Cognition in Schizophrenia: Spurious Result or Valid Effect?

Vitamin D for cancer prevention: valid assertion or premature anointment?

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