In analytic moral philosophy it is standard to use unrealistic puzzles to set up moral dilemmas of a sort that I will call Lockean Puzzles. This paper will try to pinpoint just what is and what is not problematic about their use as a teaching tool or component part of philosophical arguments. I will try to flesh out the claim that what may be lost…

Psychologists are applying growth mixture models at an increasing rate. This article argues that most of these applications are unlikely to reproduce the underlying taxonic structure of the population. At a more fundamental level, in many cases there is probably no taxonic structure to be found. Latent growth classes then categorically approximate…

Evidence suggests that a moderate amount of variance in patient outcomes is attributable to therapist differences. However, explained variance estimates vary widely, perhaps because some therapists achieve greater success with certain kinds of patients. This study assessed the amount of variance in across-session change in symptom intensity scores…

This research explores the impact of students' ability to adjust to school environment at a residential accelerated upper-level high school for math and science. Students in their junior and senior years were given the DISC (Dominance, Influence, Steadiness, Conscientiousness) behavioral instrument and tracked over a two year period. The DISC has…

Videotapes of 50 mothers interacting with each of two siblings when each child was 12 months old showed that mothers behaved very similarly towards the siblings. Results suggest that differential maternal treatment of children at the same age in infancy is unlikely to be a major source of observed marked individual differences in siblings.…

Examined the validity of the sentence completion method in the measurement of death anxiety by administering ten items from five measurers to 80 employees in death-related and non-death-related occupations. Results suggested a conscious concern with the deaths of others and a covert expression of death anxiety characterized death-related…

Relations between Tucker's three-mode multidimensional scaling and Carroll and Chang's INDSCAL are discussed. A technique to transform a three-mode solution to the general form of an INDSCAL solution along with applications to two sets of data from the literature are presented. (Author/JKS)

Traces historical development from individual differences psychology through psychological testing, vocational counseling, and student personnel work, to counseling psychology. Describes individual differences tradition in counseling psychology research and practice. Discusses how individual differences psychology has influenced counseling…

Explores the traditional model of fixed individual differences in intelligence and suggests that a more flexible and optimistic view of human capabilities is one that sees abilities as a form of developing expertise. Outlines five key elements of a model of developing expertise. (SLD)

This study examined 5- and 6-year-olds' suggestibility and interviewer demeanor as joint predictors of their memory for a novel experience. Session 1 consisted of children taking part in a novel laboratory event. Session 2 took place after approximately a 1-week delay and consisted of children completing both a memory test concerning what happened…

Early theories of categorization assumed that either rules, or prototypes, or exemplars were exclusively used to mentally represent categories of objects. More recently, hybrid theories of categorization have been proposed that variously combine these different forms of category representation. Our research addressed the question of whether there…

An era of high stakes accountability has expanded the necessity for school districts to secure principals with leadership behaviors that encourage successful academic performance. School leaders are sought to deliver practices that guide and empower entire school communities through unprecedented times of educational change. Research studies…