Excerpt from Experimental Studies in Judgment, Vol. 22 A general title, such as that given to this monograph, can give very little preliminary indication of the nature of the problems therein suggested or investigated. In the study of those mental processes, acts or resultants which we vaguely call judgments there are perhaps four chief problems with which special researches may be concerned. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

We shall examine the validity of 16 experimental designs against 12 common threats to valid inference. By experiment we refer to that portion of research in which variables are manipulated and their effects upon other variables observed. It is well to distinguish the particular role of this chapter. It is not a chapter on experimental design in the Fisher (1925, 1935) tradition, in which an experimenter having complete mastery can schedule treatments and measurements for optimal statistical efficiency, with complexity of design emerging only from that goal of efficiency. Insofar as the designs discussed in the present chapter become complex, it is because of the intransigency of the environment: because, that is, of the experimenter’s lack of complete control.

This book is designed to introduce doctoral and graduate students to the process of conducting scientific research in the social sciences, business, education, public health, and related disciplines. It is a one-stop, comprehensive, and compact source for foundational concepts in behavioral research, and can serve as a stand-alone text or as a supplement to research readings in any doctoral seminar or research methods class. This book is currently used as a research text at universities on six continents and will shortly be available in nine different languages.

Since the publication of Robert Pianta's 2001 handbook on the quality of the teacher-student relationship, much has been accomplished and research contributions have multiplied from different authors and countries. This testifies to the richness and continuous evolution of this field of research. The quality of the teacher-student relationship has been recognized as an important factor in the psychological development of students and seems to increase their adjustment to the school context. A good quality of relationship, according to attachment theorists, is characterized by closeness, affection, and respect. In this direction, the teacher can offer a relational context that can support the child in their learning processes and psychological development, preventing negative outcomes. The research focused on defining the salient features of this educational relationship and refining tools that could collect the perceptions of students and teachers, trying to identify the possible outcomes associated and the mechanisms involved.

For undergradute social science majors. A textbook on the interpretation and use of research. Annotation copyright Book News, Inc. Portland, Or.

Statistical Power Analysis is a nontechnical guide to power analysis in research planning that provides users of applied statistics with the tools they need for more effective analysis. The Second Edition includes: * a chapter covering power analysis in set correlation and multivariate methods; * a chapter considering effect size, psychometric reliability, and the efficacy of "qualifying" dependent variables and; * expanded power and sample size tables for multiple regression/correlation.