Language familiarity effects in short-term memory: The role of output delay and long-term knowledge

Four experiments examined the origins of language familiarity effects in bilingual short-term recall. In Experiments 1A and 1B, bilingual adults were tested on serial recall and probed serial recall of words and nonwords in their first and second languages. A first-language advantage was obtained on both measures, indicating that the beneficial effects of language familiarity are not exclusively attributable to lesser output delay during overt recall. In Experiments 2A and 2B, the same group of bilinguals was tested on serial recall and serial recognition of word lists in both languages. Although a sizeable first-language advantage was obtained on the serial recall measure, recognition performance was comparable in the two languages. On the basis of these results it is suggested that language differences in bilingual immediate memory arise in large part as a consequence of the differential availability of language-specific long-term knowledge with which to support retrieval processes in serial recall.     

Why Don’t We Report Sexual Harassment? An Application of the Theory of Planned Behavior

The study found that an individual’s attitudes toward the behavior, normative beliefs, and perceived behavioral control predicted an individual’s intention to report an incident of hostile environment sexual harassment. Even though women indicated a greater intention to report, there was not a gender difference in whether an individual reported an incident of hostile environment sexual harassment. Our findings provide support for the theory of planned behavior as a model for predicting an individual’s intention to report sexual harassment. These findings provide insight for the formulation of policy and procedures and the development of training programs to facilitate reporting of incidents.     

Lexical and semantic influences on item and order memory in immediate serial recognition: Evidence from a novel task

Previous studies have reported that, in contrast to the effect on immediate serial recall, lexical/semantic factors have little effect on immediate serial recognition. This has been taken as evidence that linguistic knowledge contributes to verbal short-term memory in a redintegrative process at recall. Contrary to this view, we found that lexicality, frequency, and imageability all influenced matching span. The standard matching span task, requiring changes in item order to be detected, was less susceptible to lexical/semantic factors than was a novel task involving the detection of phoneme order and hence item identity changes. Therefore, in both immediate recognition and immediate serial recall, lexical/semantic knowledge makes a greater contribution to item identity than to item order memory. Task sensitivity, and not the absence of overt recall, may have underpinned previous failures to show effects of these variables in immediate recognition. We also compared matching span for pure and unpredictable mixed lists of words and nonwords. Lexicality had a larger impact on immediate recognition for pure than for mixed lists, in line with findings for immediate serial recall. List composition affected the detection of phoneme but not item order changes in matching span; similarly, in recall, mixed lists produce more frequent word phoneme migrations but not migrations of entire items. These results point to strong similarities between immediate serial recall and recognition. Lexical/semantic knowledge may contribute to phonological stability in both tasks.     

The tendency to overestimate what is visible in a planar mirror amongst adults and children

Adults hold several mistaken beliefs about simple mechanical and optical phenomena. In particular, many adults believe that they would be able to see their own image in a mirror before they are in front of it. Similarly, they expect objects to become visible in mirrors before they actually do. This overestimation of what is visible is known as the early error (Bertamini, Spooner, & Hecht, 2003). It has been suggested that incorrect models about mechanics, and therefore erroneous beliefs, develop over time, as evidenced by good performance in young children (Kaiser, McCloskey, & Proffitt, 1986). With respect to knowledge about what is visible in mirrors we report the first developmental data. We confirmed an effect for prospective University students but found no evidence of any early error in children between the age of 5 and 11. This erroneous belief about mirrors develops during the later school years when people develop a system of beliefs based on experience.     

Lexical and semantic influences on item and order memory in immediate serial recognition: evidence from a novel task

Previous studies have reported that, in contrast to the effect on immediate serial recall, lexical/semantic factors have little effect on immediate serial recognition. This has been taken as evidence that linguistic knowledge contributes to verbal short-term memory in a redintegrative process at recall. Contrary to this view, we found that lexicality, frequency, and imageability all influenced matching span. The standard matching span task, requiring changes in item order to be detected, was less susceptible to lexical/semantic factors than was a novel task involving the detection of phoneme order and hence item identity changes. Therefore, in both immediate recognition and immediate serial recall, lexical/semantic knowledge makes a greater contribution to item identity than to item order memory. Task sensitivity, and not the absence of overt recall, may have underpinned previous failures to show effects of these variables in immediate recognition. We also compared matching span for pure and unpredictable mixed lists of words and nonwords. Lexicality had a larger impact on immediate recognition for pure than for mixed lists, in line with findings for immediate serial recall. List composition affected the detection of phoneme but not item order changes in matching span; similarly, in recall, mixed lists produce more frequent word phoneme migrations but not migrations of entire items. These results point to strong similarities between immediate serial recall and recognition. Lexical/semantic knowledge may contribute to phonological stability in both tasks.     

Long-term knowledge effects on serial recall of nonwords are not exclusively lexical

S. Roodenrys and M. Hinton (2002) reported superior recall for nonwords with large rather than small lexical neighborhoods when constituent biphone frequency was controlled, but comparable recall of high and low biphone frequency nonwords when neighborhood size was controlled, suggesting that long-term knowledge effects on nonword recall are lexically based. We report two experiments in which the same manipulations were made, but with neighborhood size controlled at the level of neighbor type. In Experiment 1, biphone frequency significantly influenced nonword recall when neighborhood size was controlled in this way. In Experiment 2, neighborhood size significantly influenced nonword recall when biphone frequency was controlled. These findings suggest that long-term knowledge contributions to nonword recall are not exclusively lexical but are based instead on both lexical and phonotactic knowledge of a language.     

Configural learning in two species of marsupial (Setonix brachyurus and Sminthopsis crassicaudata)

Four experiments examined the ability of quokkas (Setonix brachyurus) and fat-tailed dunnarts (Sminthopsis crassicaudata) to solve 2 configural tasks: transverse and negative patterning. Transverse patterning requires the simultaneous solution of 3 overlapping discrimination problems (A+ B-, B+ C-, C+ A-). Both species could solve the nonoverlapping (elemental) version of this task (U+ V-, W+ X-, Y+ Z-), but only dunnarts solved the transverse patterning task. Negative patterning requires conditioned responses to 2 stimuli when presented separately but not together (A+, B+, AB-). Both species formed a selective conditioned response to A+ and B+ stimuli and inhibited responding to a simple nonreinforced stimulus (C-), but only dunnarts successfully inhibited responding to the AB- compound to solve the negative patterning task. These experiments are the first to demonstrate configural learning in a marsupial.     

The Psychometric Properties of 360 Degree Feedback: An Empirical Study and a Cautionary Tale

Amongst the purported advantages of multi-rater feedback systems is their greater accuracy and objectivity. It is argued here that these benefits may be more imagined than real, and that there is no reason to believe such systems will avoid many of the rating errors and distortions found in traditional top-down appraisal. The first study reported in this paper investigates the psychometric soundness and concurrent validity of a pilot 360 degree feedback scheme operated by a multi-national oil company. The second study describes how analysis of the data provided by the first study was used to re-design the rating form, and demonstrates the resulting improvement achieved in the psychometric properties of the 360 degree scheme. It also examined some of the variables that influence rater’s assessment of the target managers. The conclusion is drawn that unless such feedback systems — irrespective of whether they are used for development or for appraisal — are constructed and evaluated along the lines associated with psychometric tests, they may produce assessments that are seriously misleading.