The direct effect of one event on another can be defined and measured by holding constant all intermediate variables between the two. Indirect effects present conceptual and prac­ tical difficulties (in nonlinear models), be­ cause they cannot be isolated by holding cer­ tain variables constant. This paper presents a new way of defining the effect transmit­ ted through a restricted set of paths...

This text is pp. 042343-042354 in the Cairns Nachlass held in the Archival Repository of the Center for Advanced Research in Phenomenology, Inc. at the University of Memphis. It is a typescript with corrections by the author on several pages. There was originally no title, but there is the date “August 24, 1954” at the head of the first page. It seems the script for a lecture and it seems compl...

Everybody agrees that the distinction between direct and indirect causation is important. And it seems easy to draw, i f an analysis of causation in general is available. The causal influence of one event on another is direct, if it is not mediated by other events in between; otherwise it is indirect. The trouble is with the proviso. Indeed, I contend that the order of analysis must be reversed...

Introduction: The neural substrates of temporal processing are not still fully known. The majority of interval timing studies have dealt with this subject in the context of “Explicit timing” (computing the time intervals explicitly). The hypothesis “Implicit timing” (implicitly using temporal processing to improve function) has also proposed. This lesion study addressed explicit and implicit ti...

This study attempted to systematically inspect the impact of direct and indirect corrective feedbacks on the writing ability of EFL learners when using product/process based instructions. To do so, 110 female EFL learners, between the ages of 15 and 18, were randomly assigned into four experimental groups to receive four different kinds of treatments, namely product-based instruction with direc...