Validating biological research: Role of statistics

Statistics and Its Role in Psychological Research

Statistics Notes: Validating scales and indexes.

the internet remains of paramount concern in Europe, as elsewhere. Self regulatory codes of ethics for health websites abound, yet the quality and practices of many are highly questionable. Little progress seems to have been made, moreover, in assuring consumers that the information they share with health websites will not be misused. Several US studies have already concluded that websites’ pri...

The Role of Natural Image Statistics in Biological Motion Estimation

While a great deal of experimental evidence supports the Reichardt correlator as a mechanism for biological motion detection, the correlator does not signal true image velocity. This study examines the accuracy with which physiological Reichardt correlators can provide velocity estimates in an organism’s natural visual environment. Both simulations and analysis show that the predictable statist...

statistics in trauma research

Validating Instruments in MIS Research

Calls for new directions in MIS research bring with them a call for renewed methodological .rigor. This article offers an operating paradigm for renewal along dimensions previously unstressed. The basic contention is that confirmatory empirical findings will be strengthened when instrument validation precedes both internal and statistical conclusion validity and that, in many situations, MIS re...