Matching Methods for Selection of Participants for Follow-Up

This work examines ways to make the best use of limited resources when selecting individuals to follow up in a longitudinal study estimating causal effects. In the setting under consideration, covariate information is available for all individuals but outcomes have not yet been collected and may be expensive to gather, and thus only a subset of the comparison participants are followed. Expressions in Rubin and Thomas (1996) Rubin, D. B. and Thomas, N. 1996. Matching using estimated propensity scores, relating theory to practice.. Biometrics, 52: 249–264. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar] show the benefits that can be obtained, in terms of reduced bias and variance of the estimated treatment effect, of selecting comparison individuals well matched to those in the treated group compared with a random sample of comparison individuals. We primarily consider nonexperimental settings but also consider implications for randomized trials. The methods are illustrated using data from the Johns Hopkins University Baltimore Prevention Program, which included data collection from age 6 to young adulthood of participants in an evaluation of 2 early elementary-school-based universal prevention programs.     

Mind Perception and Individual Differences: A Replication and Extension

Mind perception involves attributing higher functional abilities to others (e.g., saying a dog feels pain). The relationships between mind perception and psychopathology—autism, psychopathy, and schizotypy—have been revealed by K. Gray, Jenkins, Heberlein, and Wegner (2011 Gray, K., Jenkins, A. C., Heberlein, A. S., &; Wegner, D. M. (2011). Distortions of mind perception in psychopathology. Proceedings of the National Academy of Sciences of the United States of America, 108, 477–479. doi:10.1073/pnas.1015493108[Crossref], [PubMed], [Web of Science ®] , [Google Scholar]); however, mind perception has yet to be correlated with personality. Participants (N = 180) completed measures of personality, psychopathology, and mind perception. The psychopathology results were consistent with Gray et al. (2011 Gray, K., Jenkins, A. C., Heberlein, A. S., &; Wegner, D. M. (2011). Distortions of mind perception in psychopathology. Proceedings of the National Academy of Sciences of the United States of America, 108, 477–479. doi:10.1073/pnas.1015493108[Crossref], [PubMed], [Web of Science ®] , [Google Scholar]). The Big Five captured mind perception virtually as much as the three psychopathologies captured mind perception. Mind perception is not solely relevant to psychopathology; it is also relevant to everyday personality.     

Priming the trait category “hostility”: The moderating role of trait anxiety

Recent studies on affective priming with the naming task have revealed an influence of trait anxiety on the direction of affective priming effects (e.g., Berner & Maier, 2004 Berner, M. P. and Maier, M. A. 2004. The direction of affective priming as a function of trait anxiety when naming target words with regular and irregular pronunciation. Experimental Psychology, 51: 180–190. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar]). This moderating role of trait anxiety was further investigated in a study employing a conceptual priming task. After masked presentation of either hostile or neutral primes, participants performed a person judgment task. As expected, the direction of the hostility rating difference score, defined as the difference between hostility ratings of a target person in the hostility priming condition and in the neutral priming condition, changed from positive to negative with increasing levels of self-reported trait anxiety. The findings are interpreted in terms of salience-dependent overcorrection processes (Glaser & Banaji, 1999 Glaser, J. and Banaji, M. R. 1999. When fair is foul and foul is fair: Reverse priming in automatic evaluation. Journal of Personality and Social Psychology, 77: 669–687. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar]). Implications for our understanding of the cognitive functioning in high trait anxiety are discussed.     

Spatial Training Improves Children's Mathematics Ability

We tested whether mental rotation training improved math performance in 6- to 8-year-olds. Children were pretested on a range of number and math skills. Then one group received a single session of mental rotation training using an object completion task that had previously improved spatial ability in children this age (Ehrlich, Levine, &; Goldin-Meadow, 2006 Ehrlich , S. , Levine , S. , &; Goldin-Meadow , S. ( 2006 ). The importance of gestures in children's spatial reasoning . Developmental Psychology , 42 , 1259 – 1268 .[Crossref], [PubMed], [Web of Science ®] , [Google Scholar]). The remaining children completed crossword puzzles instead. Children's posttest scores revealed that those in the spatial training group improved significantly on calculation problems. In contrast, children in the control group did not improve on any math tasks. Further analyses revealed that the spatial training group's improvement was largely due to better performance on missing term problems (e.g., 4 + ____ = 11).     

The Factor Structure of the CVLT-C in Pediatric Epilepsy

The current study used archival data to evaluate the fit of six latent variable models, originally generated by Donders (1999) Donders. 1999. Structural analysis of the California Verbal Learning Test—Children's Version in the standardization sample. Developmental Neuropsychology, 15(3): 395–406. [CSA][Taylor &; Francis Online], [Web of Science ®] , [Google Scholar], for the California Verbal Learning Test-Children's Version (CVLT-C; Delis, Kramer, Kaplan, &; Ober, 1994 Delis, D. C., Kramer, J. H., Kaplan, E. and Ober, B. A. 1994. California Verbal Learning Test—Children's Version, San Antonio, TX: Psychological Corporation.  [Google Scholar]) in a large (N = 289) sample of pediatric epilepsy cases presenting at three tertiary treatment centers. Using confirmatory factor analysis, we found that a model including factors of Attention Span, Learning Efficiency, Free Delayed Recall, Cued Delayed Recall, and Inaccurate Recall demonstrated the best relative fit for our data. These findings are consistent with those reported by Donders (1999) Donders. 1999. Structural analysis of the California Verbal Learning Test—Children's Version in the standardization sample. Developmental Neuropsychology, 15(3): 395–406. [CSA][Taylor &; Francis Online], [Web of Science ®] , [Google Scholar] in his reanalysis of the CVLT-C standardization sample data, supporting the validity of this factorial model in pediatric epilepsy populations.     

Extending a Multilab Preregistered Replication of the Ego-Depletion Effect to a Research Program

We reanalyze the recent multilab preregistered study on ego-depletion by Hagger and Chatzisarantis (2016 Hagger, M. S., &; Chatzisarantis, N. L. D. (2016). A multilab preregistered replication of the ego-depletion effect. Perspectives on Psychological Science, 11, 546–573. doi:10.1177/1745691616652873[Crossref], [Web of Science ®] , [Google Scholar]) as if their data were obtained under the research program-strategy (Witte &; Zenker, 2016a Witte, E. H., &; Zenker, F. (2016a). Beyond schools—Reply to Marsman, Ly, and Wagenmakers. Basic and Applied Social Psychology, 38, 313–317. doi:10.1080/01973533.2016.1227710[Taylor &; Francis Online], [Web of Science ®] , [Google Scholar], 2016b Witte, E. H., &; Zenker, F. (2016b). Reconstructing recent work on macro-social stress as a research program. Basic and Applied Social Psychology, 38, 301–307. doi:10.1080/01973533.2016.1207077[Taylor &; Francis Online], [Web of Science ®] , [Google Scholar]). This strengthens Hagger and Chatzisarantis’s (2016 Hagger, M. S., &; Chatzisarantis, N. L. D. (2016). A multilab preregistered replication of the ego-depletion effect. Perspectives on Psychological Science, 11, 546–573. doi:10.1177/1745691616652873[Crossref], [Web of Science ®] , [Google Scholar]) main conclusion, because our reanalysis more directly corroborates the absence of a medium-sized, or a small-sized, ego-depletion effect (d?=?.50 under α?=?β?=?.05; d?=?.20 under α?=?β?=?.01). We explain how a smaller ego-depletion effect of d?=?.04 can be tested under similar conditions, having determined this value by maximum likelihood estimation, and compare the research program-strategy to a standard meta-analytic integration.     

Implicit and Explicit Sexual Motives as Related,But Distinct Characteristics

A measure of implicit sexual motives—the implicit AMORE—was constructed employing the Affect Misattribution Procedure (Payne, Cheng, Govorun, &; Stewart, 2005 Payne, B. K., Cheng, C. M., Govorun, O., &; Stewart, B. D. (2005). An inkblot for attitudes: Affect misattribution as implcit measurement. Journal of Personality and Social Psychology, 89, 277–293. doi:10.1037/0022-3514.89.3.277[Crossref], [PubMed], [Web of Science ®] , [Google Scholar]). Subscales paralleled the 8 dimensions identified previously by the self-report measure of sexual motives, the explicit AMORE (Hill &; Preston, 1996 Hill, C. A., &; Preston, L. K. (1996). Individual differences in the experience of sexual motivation: Theory and measurement of dispositional sexual motives. Journal of Sex Research, 33, 27–45. doi:10.1080/00224499609551812[Taylor &; Francis Online], [Web of Science ®] , [Google Scholar]). Confirmatory factor analyses supported the proposed 8-factor model in slightly revised form, which was confirmed based on a second independent set of participants. Consistent with hypotheses, the implicit scales correlated with nonconscious erotica-viewing behavior for women in a laboratory setting. In contrast to explicit scales, implicit scales were unrelated to self-report ratings of likely sexual behavior. Finally, self-reports of aspects of sexual behavior were generally associated with the measures of implicit motives independently of corresponding explicit motives for both women and men. The results support the conception of implicit sexual motives as related, but distinct from explicit sexual motives.     

Why do we need perceptual content?

Most representationalists argue that perceptual experience has to be representational because phenomenal looks are, by themselves, representational. Charles Travis (2004 Travis, C. (2004). The silence of the senses. Mind, 113, 57–94.[Crossref], [Web of Science ®] , [Google Scholar]) argues that looks cannot represent. I argue that perceptual experience has to be representational due to the way the visual system works.     

Tactile Ranschburg effects: facilitation and inhibitory repetition effects analogous to verbal memory

The present paper examines the effect of within-sequence item repetitions in tactile order memory. Employing an immediate serial recall procedure, participants reconstructed a six-item sequence tapped upon their fingers by moving those fingers in the order of original stimulation. In Experiment 1a, within-sequence repetition of an item separated by two-intervening items resulted in a significant reduction in recall accuracy for that repeated item (i.e., the Ranschburg effect). In Experiment 1b, within-sequence repetition of an adjacent item resulted in significant recall facilitation for that repeated item. These effects mirror those reported for verbal stimuli (e.g., Henson, 1998a Henson, R. N. A. (1998a). Item repetition in short-term memory: Ranschburg repeated. Journal of Experimental Psychology: Learning, Memory, and Cognition, 24(5), 1162–1181. doi:doi.org/10.1037/0278-7393.24.5.1162[Crossref], [PubMed], [Web of Science ®] , [Google Scholar]. Item repetition in short-term memory: Ranschburg repeated. Journal of Experimental Psychology: Learning, Memory, and Cognition, 24(5), 1162–1181. doi:doi.org/10.1037/0278-7393.24.5.1162). These data are the first to demonstrate the Ranschburg effect with non-verbal stimuli and suggest further cross-modal similarities in order memory.     

Quality of Life in the U.S. Navy: Impact on Performance and Career Continuance

Previous research has shown the importance of quality of life (QOL) for critical organizational outcomes such as the retention of U.S. Navy personnel (Wilcove, Schwerin, &; Wolosin, 2003 Wilcove, G., Schwerin, M. and Wolosin, D. 2003. An exploratory model of quality of life in the U.S. Navy.. Military Psychology, 15(2): 133–152. [Taylor &; Francis Online], [Web of Science ®] , [Google Scholar]) and Marines (Hindelang, Schwerin, &; Farmer, 2004 Hindelang, R. L., Schwerin, M. J. and Farmer, W. L. 2004. Quality of life (QOL) in the U.S. Marine Corps: The validation of a QOL model for predicting reenlistment intentions.. Military Psychology, 16(2): 115–134. [Taylor &; Francis Online], [Web of Science ®] , [Google Scholar]). These studies employed a life domains approach addressing a full range of work and non-work life needs as well as specific aspects of each life domain. In contrast, most other research exploring outcomes critical to military organizations focused only on work life needs of personnel (e.g., job satisfaction, organizational commitment, command climate). This study extends previous research by (a) including both performance and career-continuance plans of personnel as outcomes of interest, (b) exploring the contribution of an additional life need—spiritual well-being—to the measurement of QOL, and (c) examining changes in perceptions of QOL over time between 1999 and 2002 among U.S. Navy personnel. Implications of findings to military personnel, families, and manpower and personnel policy as well as future directions for research are discussed.     

Lexicality and Stimulus Length Effects in Italian Dyslexics: Role of the Overadditivity Effect

The effect of lexicality and stimulus length was studied in 32 third- and fourth-grade Italian dyslexics and in 86 age-matched controls. A visual lexical decision task was used. As proposed by Faust et al. (1999) Faust, M. E., Balota, D. A., Spieler, D. H. and Ferraro, F. R. 1999. Individual differences in information-processing rate and amount: Implications for group differences in response latency. Psychological Bulletin, 125: 777–799. [INFOTRIEVE][CROSSREF][CSA][Crossref], [PubMed], [Web of Science ®] , [Google Scholar], the results were analyzed in terms of raw reaction time (RT) data and using the z-score transformation to control for the presence of overadditivity effects. In terms of RTs, dyslexics showed a larger difference between words and nonwords (lexicality effect) and between short and long stimuli (length effect) than proficient readers. When data were transformed into z scores, only the group by length interaction remained significant while that with lexicality vanished. This pattern indicates that stimulus length has a specific role in Italian dyslexics’ reading deficit; in contrast, slowness in responding to nonwords was not specific but was interpreted as one aspect of dyslexics’ general inability to deal with alphabetical material (overadditivity effect).     

Considering too few alternatives: The mental model theory of extensional reasoning

When solving a simple probabilistic problem, people tend to build an incomplete mental representation. We observe this pattern in responses to probabilistic problems over a set of premises using the conjunction, disjunction, and conditional propositional connectives. The mental model theory of extensional reasoning explains this bias towards underestimating the number of possibilities: In reckoning with different interpretations of the premises (logical rules, mental model theoretical, and, specific to conditional premises, conjunction and biconditional interpretation) the mental model theory accounts for the majority of observations. Different interpretations of a premise result in a build-up of mental models that are often incomplete. These mental models are processed using either an extensional strategy relying on proportions amongst models, or a conflict monitoring strategy. The consequence of considering too few possibilities is an erroneous probability estimate akin to that faced by decision makers who fail to generate and consider all alternatives, a characteristic of bounded rationality. We compare our results to the results published by Johnson-Laird, Legrenzi, Girotto, Legrenzi, and Caverni [Johnson-Laird, P., Legrenzi, P., Girotto, V., Legrenzi, M., &; Caverni, J. (1999 Johnson-Laird, P., Legrenzi, P., Girotto, V., Legrenzi, M., &; Caverni, J. (1999). Naive probability: A mental model theory of extensional reasoning. Psychological Review, 106, 62–88. doi:10.1037/0033-295X.106.1.62[Crossref], [PubMed], [Web of Science ®] , [Google Scholar]). Naive probability: A mental model theory of extensional reasoning. Psychological Review, 106 Johnson-Laird, P., Legrenzi, P., Girotto, V., Legrenzi, M., &; Caverni, J. (1999). Naive probability: A mental model theory of extensional reasoning. Psychological Review, 106, 62–88. doi:10.1037/0033-295X.106.1.62[Crossref], [PubMed], [Web of Science ®] , [Google Scholar], 62 Johnson-Laird, P., Legrenzi, P., Girotto, V., Legrenzi, M., &; Caverni, J. (1999). Naive probability: A mental model theory of extensional reasoning. Psychological Review, 106, 62–88. doi:10.1037/0033-295X.106.1.62[Crossref], [PubMed], [Web of Science ®] , [Google Scholar]–88 Johnson-Laird, P., Legrenzi, P., Girotto, V., Legrenzi, M., &; Caverni, J. (1999). Naive probability: A mental model theory of extensional reasoning. Psychological Review, 106, 62–88. doi:10.1037/0033-295X.106.1.62[Crossref], [PubMed], [Web of Science ®] , [Google Scholar]. doi:10 Johnson-Laird, P., Legrenzi, P., Girotto, V., Legrenzi, M., &; Caverni, J. (1999). Naive probability: A mental model theory of extensional reasoning. Psychological Review, 106, 62–88. doi:10.1037/0033-295X.106.1.62[Crossref], [PubMed], [Web of Science ®] , [Google Scholar].1037 Johnson-Laird, P., Legrenzi, P., Girotto, V., Legrenzi, M., &; Caverni, J. (1999). Naive probability: A mental model theory of extensional reasoning. Psychological Review, 106, 62–88. doi:10.1037/0033-295X.106.1.62[Crossref], [PubMed], [Web of Science ®] , [Google Scholar]/0033 Johnson-Laird, P., Legrenzi, P., Girotto, V., Legrenzi, M., &; Caverni, J. (1999). Naive probability: A mental model theory of extensional reasoning. Psychological Review, 106, 62–88. doi:10.1037/0033-295X.106.1.62[Crossref], [PubMed], [Web of Science ®] , [Google Scholar]-295X Johnson-Laird, P., Legrenzi, P., Girotto, V., Legrenzi, M., &; Caverni, J. (1999). Naive probability: A mental model theory of extensional reasoning. Psychological Review, 106, 62–88. doi:10.1037/0033-295X.106.1.62[Crossref], [PubMed], [Web of Science ®] , [Google Scholar].106 Johnson-Laird, P., Legrenzi, P., Girotto, V., Legrenzi, M., &; Caverni, J. (1999). Naive probability: A mental model theory of extensional reasoning. Psychological Review, 106, 62–88. doi:10.1037/0033-295X.106.1.62[Crossref], [PubMed], [Web of Science ®] , [Google Scholar].1 Johnson-Laird, P., Legrenzi, P., Girotto, V., Legrenzi, M., &; Caverni, J. (1999). Naive probability: A mental model theory of extensional reasoning. Psychological Review, 106, 62–88. doi:10.1037/0033-295X.106.1.62[Crossref], [PubMed], [Web of Science ®] , [Google Scholar].62 Johnson-Laird, P., Legrenzi, P., Girotto, V., Legrenzi, M., &; Caverni, J. (1999). Naive probability: A mental model theory of extensional reasoning. Psychological Review, 106, 62–88. doi:10.1037/0033-295X.106.1.62[Crossref], [PubMed], [Web of Science ®] , [Google Scholar]], and we observe lower performance levels than those in the original article.     

Commentary Research on gene–environment interdependence: Honing the tools and examining the angles

The insightful overview by Sir Michael Rutter (this issue) on gene–environment interdependence comes about 10 years after the breakthrough Science publications on gene–environment interactions (G×E) involving the MAOA and 5-HTT genes by Caspi et al. (2002 Caspi, A., McClay, J., Moffitt, T. E., Mill, J., Martin, J.Craig, I. W. 2002. Role of genotype in the cycle of violence in maltreated children. Science, 297: 851–854. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar], 2003 Caspi, A., Sugden, K., Moffitt, T. E., Taylor, A., Craig, I. W.Harrington, H. 2003. Influence of life stress on depression: Moderation by a polymorphism in the 5-HTT gene. Science, 301: 386–389. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar]). Since then, a field of research has burgeoned that has produced replications as well as intriguing new evidence of gene–environment interdependence. At the same time, however, the field has witnessed a growing scepticism about the relevance of studying gene–environment interactions and has seen replication failures (see Duncan & Keller, 2011 Duncan, L. E. and Keller, M. C. 2011. A critical review of the first 10 years of candidate gene-by-environment interaction research in psychiatry. American Journal of Psychiatry, 168: 1041–1049. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar]; Risch et al., 2009 Risch, N., Herell, R., Lehner, T., Liang, K.-Y., Eaves, L.Hoh, J. 2009. Interaction between the serotonin transporter gene (5-HTTLPR), stressful life events, and risk of depression: A meta-analysis. Journal of the American Medical Association, 301: 2462–2471. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar]). Against this backdrop, we comment and elaborate on several of the key issues raised by Rutter, and suggest some directions for future research on G×E. Specifically, we discuss (1) replication issues; (2) the crucial role of experiments in understanding gene–environment interdependence; (3) current unknowns with regard to differential susceptibility; and (4) clinical and practical implications of G×E research.     

Exploitation,structural injustice,and the cross-border trade in human ova

Global demand for human ova in in vitro fertilization has led to its expansion in countries with falling average incomes and rising female unemployment. Paid egg donation in the context of national, regional, and global inequalities has the potential to exploit women who are socioeconomically vulnerable, and indeed there is ample evidence that it does. Structural injustices that render women in middle-income countries – and even some high-income countries – economically vulnerable contribute to a context of ‘omissive coercion’ (Wilkinson 2003 Wilkinson, S. 2003. “The Exploitation Argument Against Commercial Surrogacy.” Bioethics 17 (2): 169–187. doi: 10.1111/1467-8519.00331[Crossref], [PubMed], [Web of Science ®] , [Google Scholar]) that is morally troubling. When egg brokers or fertility clinics take advantage of these background structural injustices and prospective ova providers’ vulnerability in order to pay them less than they need to meet their livelihood needs, they engage in exploitation. Analyzing paid egg donation as a form of reproductive labor, however, can direct our attention to reforms that would reduce exploitative instances of this practice. In contrast to those who see egg provision as inescapably commodifying and harmful, I argue that compensated egg provision can be made less exploitative. I defend my approach against commodification-driven analyses of egg donation and concerns about undue inducement, and conclude by discussing some of the ways in which policy-makers and medical practitioners might reduce the harms that may result from this global practice.     

Implicit Coping Responses to Racism Predict African Americans' Level of Psychological Distress

African Americans report experiencing discrimination on a frequent basis, and these experiences have been linked to psychological distress. Coping responses to racism have been suggested to mediate the relationship between discrimination and distress. This study introduces the first measure of African Americans' implicit emotional and coping responses to racism and examines the measure's ability to predict psychological distress. The Go/No-Go Association Task (Nosek &; Banaji, 2001 Nosek , B. A. , &; Banaji , M R. ( 2001 ). The go/no-go association task . Social Cognition , 19 , 625 – 664 .[Crossref], [Web of Science ®] , [Google Scholar]) was adapted to assess African Americans' implicit association of racial prejudice with each of four coping and two emotional responses. Anxiety and general psychological distress were assessed with the Brief Symptom Inventory. Greater implicit association between prejudice and “seeking support” was found to predict lower anxiety and general distress, demonstrating the potential utility of implicit measures in assessing coping responses to racism and their consequences.     

SNARC (spatial–numerical association of response codes) meets SPARC (spatial–pitch association of response codes): Automaticity and interdependency in compatibility effects

Concepts, including the mental number line, or addressing pitch as high and low, suggest that the spatial–numerical and spatial–pitch association of response codes (SNARC and SPARC) effects are domain-specific and thus independent. Alternatively, there may be dependencies between these effects, because they share common automatic or controlled decision mechanisms. In two experiments, participants were presented with spoken numbers in different pitches; their numerical value, pitch, and response compatibility were varied systematically. This allowed us to study SNARC and SPARC effects in a factorial design (see also Fischer, Riello, Giordano, &; Rusconi, 2013 Fischer, M. H., Riello, M., Giordano, B. L., &; Rusconi, E. (2013). Singing numbers?…?in cognitive space--a dual-task study of the link between pitch, space, and numbers. Topics in Cognitive Science, 5(2), 354–366. Retrieved from http://doi.org/10.1111/tops.12017[Crossref], [PubMed], [Web of Science ®] , [Google Scholar]). Participants judged the stimuli on numerical magnitude, pitch, or parity (odd–even). In all tasks, the SNARC and SPARC effects had superadditive interactions. These were interpreted as both effects sharing a common mechanism. The task variation probes the mechanism: In the magnitude judgement task, numerical magnitude was explicit, whereas pitch was implicit; in the pitch judgement task, it was vice versa. In the parity judgement task, both dimensions were implicit. Regardless of whether they were implicit or explicit, both SNARC and SPARC effects occurred in all tasks. We concluded that by not requiring focal attention the common mechanism operates automatically.     

Index

Visuospatial working memory (VSWM) and intuitive geometry were examined in two groups aged 11–13, one with children displaying symptoms of nonverbal learning disability (NLD; n?=?16), and the other, a control group without learning disabilities (n?=?16). The two groups were matched for general verbal abilities, age, gender, and socioeconomic level. The children were presented with simple storage and complex-span tasks involving VSWM and with the intuitive geometry task devised by Dehaene, Izard, Pica, and Spelke (2006 Dehaene, S., Izard, V., Pica, P. and Spelke, E. S. 2006. Core knowledge of geometry in an Amazonian indigene group. Science, 311: 381–384. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar]). Results revealed that the two groups differed in the intuitive geometry task. Differences were particularly evident in Euclidean geometry and in geometrical transformations. Moreover, the performance of NLD children was worse than controls to a larger extent in complex-span than in simple storage tasks, and VSWM differences were able to account for group differences in geometry. Finally, a discriminant function analysis confirmed the crucial role of complex-span tasks involving VSWM in distinguishing between the two groups. Results are discussed with reference to the relationship between VSWM and mathematics difficulties in nonverbal learning disabilities.     

The Rediscovery of Bifactor Measurement Models

Bifactor latent structures were introduced over 70 years ago, but only recently has bifactor modeling been rediscovered as an effective approach to modeling construct-relevant multidimensionality in a set of ordered categorical item responses. I begin by describing the Schmid-Leiman bifactor procedure (Schmid &; Leiman, 1957 Schmid, J. 1957. The comparability of the bi-factor and second-order factor patterns. Journal of Experimental Education, 25: 249–253. [Taylor &; Francis Online], [Web of Science ®] , [Google Scholar]) and highlight its relations with correlated-factors and second-order exploratory factor models. After describing limitations of the Schmid-Leiman, 2 newer methods of exploratory bifactor modeling are considered, namely, analytic bifactor (Jennrich &; Bentler, 2011 Jennrich, R. I. and Bentler, P. M. 2011. Exploratory bi-factor analysis. Psychometrika, 76: 537–549. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar]) and target bifactor rotations (Reise, Moore, &; Maydeu-Olivares, 2011 Reise, S. P., Moore, T. M. and Maydeu-Olivares, A. 2011. Targeted bifactor rotations and assessing the impact of model violations on the parameters of unidimensional and bifactor models. Educational and Psychological Measurement, 71: 684–711. [Crossref], [Web of Science ®] , [Google Scholar]). Then I discuss limited- and full-information estimation approaches to confirmatory bifactor models that have emerged from the item response theory and factor analysis traditions, respectively. Comparison of the confirmatory bifactor model to alternative nested confirmatory models and establishing parameter invariance for the general factor also are discussed. Finally, important applications of bifactor models are reviewed. These applications demonstrate that bifactor modeling potentially provides a solid foundation for conceptualizing psychological constructs, constructing measures, and evaluating a measure's psychometric properties. However, some applications of the bifactor model may be limited due to its restrictive assumptions.     

A Survey of Rewards for Teens: Extension and 25-Year Follow-Up

Extant reward surveys and item preferences assessments have shown to be a reliable mode of ascertaining potential reinforcers for various populations; however, many are outdated and may comprise of items or rewards that contemporary populations may not value. The purpose of this research is to extend upon the Houlihan, Jesse, Levine, and Sombke (1991 Houlihan, D., Jesse, V. C., Levine, H. D., &; Sombke, C. (1991). A survey for use with teenage children. Child &; Family Behavior Therapy, 13(1), 1–11.[Taylor &; Francis Online], [Web of Science ®] , [Google Scholar]) Survey of Rewards for Teens (SORT) and assess whether there is evidence of a potential, generational shift in reward preferences in high school students from 1991 to 2016. This inquiry is of particular importance to behavior analysts due to the idiosyncratic nature of reward preference, a tendency for rewards to shift over time, and the salient role played by rewards in behavior therapy programs. Results suggest that the reward preferences of contemporary high school students differ when compared to the sample of adolescents in Houlihan et al. (1991 Houlihan, D., Jesse, V. C., Levine, H. D., &; Sombke, C. (1991). A survey for use with teenage children. Child &; Family Behavior Therapy, 13(1), 1–11.[Taylor &; Francis Online], [Web of Science ®] , [Google Scholar]) study. In addition, a proposed revision of the SORT is provided, whose development was derived based on the resulting component structure from a principal components analysis (PCA) and inspection of component psychometric properties.