Familiar Types Research Articles

International Assessment of DSM-5 and ICD-11 Personality Disorder Traits: Toward a Common Nosology in DSM-5.1

Introduction: The DSM-5 Alternative Model of Personality Disorders (AMPD) and the ICD-11 classification of personality disorders (PD) are largely commensurate and, when combined, they delineate 6 trait domains: negative affectivity, detachment, antagonism/dissociality, disinhibition, anankastia, and psychoticism. Objective: The present study evaluated the international validity of a brief 36-item patient-report measure that portrays all 6 domains simultaneously including 18 primary subfacets. Methods: We developed and employed a modified version of the Personality Inventory for DSM-5 – Brief Form Plus (PID5BF+). A total of 16,327 individuals were included, 2,347 of whom were patients. The expected 6-factor structure of facets was initially investigated in samples from Denmark (n = 584), Germany (n = 1,271), and the USA (n = 605) and subsequently replicated in both patient- and community samples from Italy, France, Switzerland, Belgium, Norway, Portugal, Spain, Poland, Czech Republic, the USA, and Brazil. Associations with interview-rated DSM-5 PD categories were also investigated. Results: Findings generally supported the empirical soundness and international robustness of the 6 domains including meaningful associations with familiar interview-rated PD types. Conclusions: The modified PID5BF+ may be employed internationally by clinicians and researchers for brief and reliable assessment of the 6 combined DSM-5 and ICD-11 domains, including 18 primary subfacets. This 6-domain framework may inform a future nosology for DSM-5.1 that is more reasonably aligned with the authoritative ICD-11 codes than the current DSM-5 AMPD model. The 36-item modified PID5BF+ scoring key is provided in online supplementary Appendix A see www.karger.com/doi/10.1159/000507589 (for all online suppl. material).

Is foraging innovation lost following colonization of a less variable environment? A case study in surface- vs. cave-dwelling Asellus aquaticus.

Behavioral innovation is a key process for successful colonization of new habitat types. However, it is costly due to the necessary cognitive and neural demands and typically connected to ecological generalism. Therefore, loss of behavioral innovativeness is predicted following colonization of new, simple, and invariable environments. We tested this prediction by studying foraging innovativeness in the freshwater isopod Asellus aquaticus. We sampled its populations along the route of colonizing a thermokarstic water‐filled cave (simple, stable habitat with only bacterial mats as food) from surface habitats (variable environment, wide variety of food). The studied cave population separated from the surface populations at least 60,000 years ago. Animals were tested both with familiar and novel food types (cave food: bacterial mats; surface food: decaying leaves). Irrespective of food type, cave individuals were more likely to feed than surface individuals. Further, animals from all populations fed longer on leaves than on bacteria, even though leaves were novel for the cave animals. Our results support that cave A. aquaticus did not lose the ability to use the ancestral (surface) food type after adapting to a simple, stable, and highly specialized habitat.

Sexual Risk Taking Intentions Under the Influence of Relationship Motivation, Partner Familiarity, and Sexual Arousal

ABSTRACT Condom negotiation is typically a dyadic process, influenced by a host of factors that can impact sexual health decision-making. The current paper investigated the influence of sexual arousal, relationship motivation, and partner familiarity on sexual risk taking intentions in women and men. In Study 1, 331 participants were recruited online and responded to items assessing condom use intentions. Participants higher in relationship motivation were more likely to consider perceived partner desire for condom use when considering initiating condom negotiation. In Study 2, 169 undergraduate students participated in a sexual arousal manipulation and responded to scenarios depicting sexual encounters with more or less familiar hypothetical partners. Participants reported greater sexual risk taking intentions with more (vs. less) familiar hypothetical partners. Men (vs. women) showed greater risk taking intentions overall. Higher sexual arousal was associated with increased sexual risk-taking intentions, regardless of gender. With less familiar partners, participants higher in relationship motivation showed somewhat greater concern that insisting on condom use would interfere with the sexual encounter, though concern was greatest among men for both more and less familiar partner types. These findings offer some support for the notion that a stronger orientation toward forming long-term relationships can facilitate sexual risk taking behavior.

Feminism’s Forgotten Fight: The Unfinished Struggle for Work and Family by Kirsten Swinth

Book Review| March 01 2020 Feminism’s Forgotten Fight: The Unfinished Struggle for Work and Family by Kirsten Swinth Feminism’s Forgotten Fight: The Unfinished Struggle for Work and Family. Swinth, Kirsten. Cambridge, MA: Harvard University Press, 2018. 339 pp., $35.00 (cloth) Katherine Turk Katherine Turk University of North Carolina Search for other works by this author on: This Site Google Labor (2020) 17 (1): 169–170. https://doi.org/10.1215/15476715-7963069 Cite Icon Cite Share Icon Share Facebook Twitter Email Permissions Search Site Citation Katherine Turk; Feminism’s Forgotten Fight: The Unfinished Struggle for Work and Family by Kirsten Swinth. Labor 1 March 2020; 17 (1): 169–170. doi: https://doi.org/10.1215/15476715-7963069 Download citation file: Zotero Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search nav search search input Search input auto suggest search filter Books & JournalsAll JournalsLabor Search Advanced Search In histories of feminism, the phrase second wave has become controversial, seeming to describe a narrow and elitist movement. Among the most damning critiques of “second wavers” is that they helped to shore up hierarchical labor relationships and an unjust economy in the 1970s by demanding access to the workplace as it was. But as Feminism’s Forgotten Fight teaches us, that’s not what happened. Even in examining a traditional “second-wave” chronology and familiar types of movement actors, Kirsten Swinth offers an exciting new account that recasts the entire movement.Feminism’s Forgotten Fight profiles liberal feminists, radical feminists, and feminists of color who argued that work and family needed structural transformation if gender equality was to be realized. They claimed that women should be able to “have it all,” not that they already could. These activists did not cause the decline of... Copyright © 2020 Labor and Working-Class History Association2020 Issue Section: Book Reviews You do not currently have access to this content.

Electrical Submersible Pump Design in Vertical Oil Wells

Artificial Lift is a very essential tool to increase the oil production rate or lift the oil column in the wellbore up to the surface. Artificial lift is the key in case of bottom hole pressure is not sufficient to produce oil from the reservoir to the surface. So, a complete study is carried to select the suitable type of artificial lift according to the reservoir and wellbore conditions like water production, sand production, solution gas-oil ratio, and surface area available at the surface. Besides, the maintenance cost and volume of produced oil have an essential part in the selection of the type of artificial lift tool. Artificial lift tools have several types such as Sucker Rod Pump, Gas Lift, Hydraulic Pump, Progressive Cavity Pump, Jet Pump, and Electrical Submersible Pump. All these types require specific conditions for subsurface and surface parameters to apply in oil wells. This paper will study the Electrical Submersible Pump “ESP” which is considered one of the most familiar types of artificial lifts in the whole world. Electrical Submersible Pump “ESP” is the most widely used for huge oil volumes. In contrast, ESP has high maintenance and workover cost. Finally, this paper will discuss a case study for the Electrical Submersible pump “ESP” design in an oil well. This case study includes the entire well and reservoir properties involving fluid properties to be applied using Prosper software. The results of the design model will impact oil productivity and future performance of oil well.

Bridging Sensory Evaluation and Consumer Research for Strategic Leafy Brassica (Brassica oleracea) Improvement.

Plant breeders working with new or underrepresented horticultural crops often have minimal sensory resources available to aid in the breeding and selection of new varieties. Kale (Brassica oleracea var. acephala) is a recently popularized horticultural crop in Western markets, however, plant breeding programs have little knowledge regarding the underlying sensory characteristics motivating this trend. We employed a multilayered, sensory-driven approach to understand the inherent consumer values, sensory attributes, and consumer preferences for kale types currently available on the market and novel genotypes from the Cornell AgriTech vegetable breeding program. Underlying consumer values related to storability, health and wellbeing, and sensory characteristics were identified through Qualitative Multivariate Analysis (QMA). A trained descriptive panel developed a lexicon of 44 sensory attributes common within kale germplasm, 21 of which exhibited significant differences among the 15 tested kale genotypes. Following a consumer test, four clusters of kale consumers were identified with agglomerative hierarchical clustering (AHC) and external preference mapping was used to connect consumer hedonic scores with descriptive data. Consumers demonstrated a preference for familiar kale types (that is, curly types), while new test hybrids scored favorably within flavor and appearance modalities. Preference mapping highlighted the utility of plant breeding in developing products to expand the existing sensory space. This work provides important resources for horticultural crop selection efforts, and it serves as a strategic model for breeding programs working with new or unfamiliar traits. PRACTICAL APPLICATION: Plant breeders are responsible for selecting and improving traits that influence consumer acceptance, including quality traits such as appearance and flavor. Understanding the relative importance of sensory characteristics and the variation of these sensory characteristics can help plant breeders prioritize these traits within their program. We have developed a standardized sensory lexicon for kale and related leafy Brassicas, identified variation for texture and flavor in our breeding program, and gained a better understanding of consumer preferences to guide future breeding efforts.

Meta-analytic review of infants' preferential attention to familiar and unfamiliar face types based on gender and race

Infants’ earliest attention shows prioritization of social and communicative signals – faces. Not all faces receive equal attention; infants show early preferential attention to some face types over others. Although the pattern is not consistent across studies, potentially because infant experience varies, sample sizes and effect sizes are small, and methodological parameters are inconsistent, infants seem to show dynamic preferential attention first to familiar or caregiver-like (e.g., female, own-race) and developmentally later to unfamiliar (e.g., male, other-race) face types. This meta-analysis clarifies infants’ attention to familiar (i.e., caregiver-like) and unfamiliar (i.e., not caregiver-like) face types across the first year of life. The combined results from 19 studies (76 samples) of infant visual preferential attention reveal greater attention to familiar over unfamiliar face types (M = 2.69%, SE = 1.01), which declines over the first year of life. Face comparison type (race or gender) and infant age significantly predicted preferential attention: attention to familiar over unfamiliar race faces declined significantly with increasing infant age. There was no significant age-related decline in infants’ preferential attention to familiar gender faces. Task parameters did not significantly predict infants’ preferential attention. With the high variability in methodological parameters and reporting in the field, we suggest best practices for research to clarify our understanding of infants’ early visual attention to faces.

Graphicacy for Numeracy: Review of Fundamentals of Data Visualization: A Primer on Making Informative and Compelling Figures by Claus O. Wilke (2019)

Wilke, Claus O. 2019. Fundamentals of Data Visualization: A Primer on Making Informative and Compelling Figures. (Sebastopol, CA: O’Reilly Media, Inc.). 390 pp. ISBN 978-1-492-03108-6. First edition. First release: 03-15-2019.Claus O. Wilke has authored an excellent reference about producing and understanding static figures, figures used online, in print, and for presentations. His book is neither a statistics nor programming text, but familiarity with basic statistical concepts is helpful. Written in three parts, the book presents both the math and artistic design aspects of telling a story through figures. Wilke makes extensive use of examples, labels them good, bad, wrong or ugly, and explains why he deems them so. He includes chapters that serve as a directory of visualizations, and the reader will encounter familiar figure types as well as more esoteric ones. He discusses aesthetic considerations, including color, that make figures more compelling, and provides tips to connect with the audience to tell a story. Wilke intends the book for those producing figures, but consumers of graphical content will also find it helpful as his clear and concise style – and his effective use of examples – will help them evaluate the worth of figures they encounter.

Perceptual Narrowing in Speech and Face Recognition: Evidence for Intra-individual Cross-Domain Relations.

During the first year of life, infants undergo perceptual narrowing in the domains of speech and face perception. This is typically characterized by improvements in infants’ abilities in discriminating among stimuli of familiar types, such as native speech tones and same-race faces. Simultaneously, infants begin to decline in their ability to discriminate among stimuli of types with which they have little experience, such as non-native tones and other-race faces. The similarity in time-frames during which perceptual narrowing seems to occur in the domains of speech and face perception has led some researchers to hypothesize that the perceptual narrowing in these domains could be driven by shared domain-general processes. To explore this hypothesis, we tested 53 Caucasian 9-month-old infants from monolingual German households on their ability to discriminate among non-native Cantonese speech tones, as well among same-race German faces and other-race Chinese faces. We tested the infants using an infant-controlled habituation-dishabituation paradigm, with infants’ preferences for looking at novel stimuli versus the habituated stimuli (dishabituation scores) acting as indicators of discrimination ability. As expected for their age, infants were able to discriminate between same-race faces, but not between other-race faces or non-native speech tones. Most interestingly, we found that infants’ dishabituation scores for the non-native speech tones and other-race faces showed significant positive correlations, while the dishabituation scores for non-native speech tones and same-race faces did not. These results therefore support the hypothesis that shared domain-general mechanisms may drive perceptual narrowing in the domains of speech and face perception.

Justice in circumstances of transition: comments on Colleen Murphy’s theory of transitional justice as justice of a special type

ABSTRACTColleen Murphy has argued that in circumstances of societal transition only one special type of justice is applicable: ‘transitional justice’, a type of justice not reducible to any other type or types (such as retributive, distributive, restorative or corrective justice). I take issue with Murphy’s conclusion, showing that retributive, distributive and corrective justice all feature as isolable component parts in her own positive account of transitional justice. I also argue that restorative justice is applicable and important in transitional societies when the state itself has perpetrated serious wrongs. Murphy claims that each distinct type of justice is a response to a unique ‘basic problem of justice’, triggered by a background set of ‘circumstances’. However, I argue that identifying such a basic problem neither necessarily means the circumstances in question call for a unique type of justice, nor is sufficient to determine which type of justice is most salient in the circumstances. What is more, I show that Murphy applies her own methodology inconsistently in her treatment of transitional societies and stable democracies. I argue that what Murphy calls ‘transitional justice’ is composed of familiar types of justice as well as other moral values, but also regrettable – though often unavoidable – injustice.

Puzzle—Solving Smartphone Puzzle Apps by Mathematical Programming

This paper considers six logic puzzles (i.e., single player games) that are available as smartphone apps. The six logic puzzles are: Thermometer Puzzles, Kakuro (Cross Sums), Match 22: Color Puzzle Game, ∞ Infinity Loop, Slider, and Flow Free. We provide mathematical models that can be applied to obtain solutions for these puzzles. In OR/MS lectures, the apps and models can be used as examples or exercises when teaching mathematical programming and for discussion of familiar model types such as shortest path and network flow models. Given the popularity of logic puzzle apps on smartphones, such exercises might be motivating for students. The level of difficulty of the models presented here varies from easy to more difficult. The MathProg files are available at https://www.informs.org/Publications/Subscribe/Access-Restricted-Materials .

Green Infrastructure, Green Stormwater Infrastructure, and Human Health: A Review

In a growing trend, cities around the world have been installing Green Infrastructure (GI) in the form of vegetated landscapes that provide ecological benefits such as stormwater management, wildlife habitats, and temperature moderation (Tzoulas et al. Landsc Urban Plan. 61(3):11, 2007). Some GI, such as trees and green spaces, have positive impacts on human health. It is less clear how newer types of GI, such as rain gardens, green roofs, and bioswales, impact human health. These newer GI types are called Green Stormwater Infrastructure (GSI). Planners and designers need to know the extent to which GSI impacts humans. This systematic review does exactly that—we explore the published evidence regarding the relationships between GI and human health. We identified 55 peer-reviewed articles addressing these issues. Familiar types of GI, such as trees and green spaces, were found to be beneficial to the body (cardiovascular system, cortisol regulation, and pregnancy health), mind (attention capacity and mental health), and behavior (lower crime, better self-regulation, and more pro-social behaviors). We found much less research exploring the impacts of GSI on health. Our findings show that for some of the specific categories of GI, such as trees, considerable evidence exists on the impacts on human health. For other categories, such as rain gardens, green roofs, or biodiverse plantings, however, there is scant evidence of a health impact. We believe it is likely that these forms of GI do impact human health and that the reason for the scarcity of evidence is that few careful studies have examined the impacts of newer forms of GI on specific human health outcomes. Future researchers should investigate the health effects of type, dose, frequency, and duration of exposure to GI and GSI.

Meta-analytic review of the development of face discrimination in infancy: Face race, face gender, infant age, and methodology moderate face discrimination.

Infants show facility for discriminating between individual faces within hours of birth. Over the first year of life, infants' face discrimination shows continued improvement with familiar face types, such as own-race faces, but not with unfamiliar face types, like other-race faces. The goal of this meta-analytic review is to provide an effect size for infants' face discrimination ability overall, with own-race faces, and with other-race faces within the first year of life, how this differs with age, and how it is influenced by task methodology. Inclusion criteria were (a) infant participants aged 0 to 12 months, (b) completing a human own- or other-race face discrimination task, (c) with discrimination being determined by infant looking. Our analysis included 30 works (165 samples, 1,926 participants participated in 2,623 tasks). The effect size for infants' face discrimination was small, 6.53% greater than chance (i.e., equal looking to the novel and familiar). There was a significant difference in discrimination by race, overall (own-race, 8.18%; other-race, 3.18%) and between ages (own-race: 0- to 4.5-month-olds, 7.32%; 5- to 7.5-month-olds, 9.17%; and 8- to 12-month-olds, 7.68%; other-race: 0- to 4.5-month-olds, 6.12%; 5- to 7.5-month-olds, 3.70%; and 8- to 12-month-olds, 2.79%). Multilevel linear (mixed-effects) models were used to predict face discrimination; infants' capacity to discriminate faces is sensitive to face characteristics including race, gender, and emotion as well as the methods used, including task timing, coding method, and visual angle. (PsycINFO Database Record

Indigenous Shawi communities and national food security support: Right direction, but not enough

Food insecurity is a major challenge facing Peru’s Indigenous Shawi communities, who receive food support through national level programs. There is limited research, however, on how national food and social programming support is perceived, received and used among Indigenous communities. We address this research gap by characterizing the preferred diet and coping mechanisms among Shawi Indigenous households, and investigating community perspectives on the national food program and national social supports. We used a mixed methods approach, including a quantitative survey among eleven Shawi communities in the Peruvian Amazon (n=177 households), and semi-structured interviews with key informants (n=24). We found that national food programs in Peru rarely provide foods that are desired and preferred among the Shawi, particularly familiar and locally-sourced protein sources such as bushmeat and fish. Food and social programming requirements do not integrate consideration of the remoteness of many vulnerable households, and are considered culturally or linguistically inaccessible to many families. In some cases, foods supplied by national programs are not consumed as they are perceived as unfamiliar. Key opportunities to improve food and social programing include: monitoring and revising eligibility requirements for remote and highly vulnerable households; increasing provision of locally-preferred protein food and familiar food types; avoiding use of written Spanish as a sole source of information to support programming; extending food provision outside of school months; developing contingency plans during education sector strikes; considering hiring of staff with working knowledge of local languages for community distributions; using visual or oral communication rather than written communication to increase accessibility of programs; increasing knowledge on the use and nutritional value of external food; and considering exemptions to school and health eligibility requirements during the rainy season and during sector strikes. Nationally-developed programming that does not consider Indigenous and cultural contexts risks inefficiency, limited improvement of health outcomes, and the potential to increase inequities in Indigenous health.

ICD-11 and DSM-5 personality trait domains capture categorical personality disorders: Finding a common ground.

The five personality disorder trait domains in the proposed International Classification of Diseases, 11th edition and the Diagnostic and Statistical Manual of Mental Disorders, 5th edition are comparable in terms of Negative Affectivity, Detachment, Antagonism/Dissociality and Disinhibition. However, the International Classification of Diseases, 11th edition model includes a separate domain of Anankastia, whereas the Diagnostic and Statistical Manual of Mental Disorders, 5th edition model includes an additional domain of Psychoticism. This study examined associations of International Classification of Diseases, 11th edition and Diagnostic and Statistical Manual of Mental Disorders, 5th edition trait domains, simultaneously, with categorical personality disorders. Psychiatric outpatients ( N = 226) were administered the Structured Clinical Interview for DSM-IV Axis II Personality Disorders Interview and the Personality Inventory for DSM-5. International Classification of Diseases, 11th edition and Diagnostic and Statistical Manual of Mental Disorders, 5th edition trait domain scores were obtained using pertinent scoring algorithms for the Personality Inventory for DSM-5. Associations between categorical personality disorders and trait domains were examined using correlation and multiple regression analyses. Both the International Classification of Diseases, 11th edition and the Diagnostic and Statistical Manual of Mental Disorders, 5th edition domain models showed relevant continuity with categorical personality disorders and captured a substantial amount of their information. As expected, the International Classification of Diseases, 11th edition model was superior in capturing obsessive-compulsive personality disorder, whereas the Diagnostic and Statistical Manual of Mental Disorders, 5th edition model was superior in capturing schizotypal personality disorder. These preliminary findings suggest that little information is 'lost' in a transition to trait domain models and potentially adds to narrowing the gap between Diagnostic and Statistical Manual of Mental Disorders, 5th edition and the proposed International Classification of Diseases, 11th edition model. Accordingly, the International Classification of Diseases, 11th edition and Diagnostic and Statistical Manual of Mental Disorders, 5th edition domain models may be used to delineate one another as well as features of familiar categorical personality disorder types. A preliminary category-to-domain 'cross walk' is provided in the article.

Continuity between interview-rated personality disorders and self-reported DSM–5 traits in a Danish psychiatric sample.

The Diagnostic and Statistical Manual of Mental Disorders (5th ed.; DSM-5) Section III offers an alternative model for the diagnosis of personality disorders (PDs), including 25 pathological personality trait facets organized into 5 trait domains. To maintain continuity with the categorical PD diagnoses found in DSM-5 Section II, specified sets of facets are configured into familiar PD types. The current study aimed to evaluate the continuity across the Section II and III models of PDs. A sample of 142 psychiatric outpatients were administered the Personality Inventory for DSM-5 and rated with the Structured Clinical Interview for the DSM-IV Axis II disorders. We investigated whether the DSM-5 Section III facet-profiles would be associated with their respective Section II counterparts, as well as determining whether additional facets could augment the prediction of the Section II disorders. Results showed that, overall, the interview-rated DSM-5 Section II disorders were most strongly associated with expected self-reported Section III traits. Results also supported the addition of facets not included in the proposed Section III PD criteria. These findings partly underscore the continuity between the Section II and III models of PDs and suggest how it may be enhanced; however, additional research is needed to further evaluate where continuity exists, where it does not exist, and how the traits system could be improved. (PsycINFO Database Record

Our Gang: A Racial History of “The Little Rascals.”

Our Gang: A Racial History of “The Little Rascals.”

Multispectral images of flowers reveal the adaptive significance of using long-wavelength-sensitive receptors for edge detection in bees

Many pollinating insects acquire their entire nutrition from visiting flowers, and they must therefore be efficient both at detecting flowers and at recognizing familiar rewarding flower types. A crucial first step in recognition is the identification of edges and the segmentation of the visual field into areas that belong together. Honeybees and bumblebees acquire visual information through three types of photoreceptors; however, they only use a single receptor type—the one sensitive to longer wavelengths—for edge detection and movement detection. Here, we show that these long-wavelength receptors (peak sensitivity at ~544 nm, i.e., green) provide the most consistent signals in response to natural objects. Using our multispectral image database of flowering plants, we found that long-wavelength receptor responses had, depending on the specific scenario, up to four times higher signal-to-noise ratios than the short- and medium-wavelength receptors. The reliability of the long-wavelength receptors emerges from an intricate interaction between flower coloration and the bee’s visual system. This finding highlights the adaptive significance of bees using only long-wavelength receptors to locate flowers among leaves, before using information provided by all three receptors to distinguish the rewarding flower species through trichromatic color vision.

A microfiber catalyst with lemniscate structural elements

A new type of catalyst based on microfiber supports with microfibers twined into looped threads (lemniscate) that in turn form a structured flexible stable and geometrically regular bulk bed permeable to a reaction flow and not requiring any additional structurial elements is described. Deep toluene oxidation experiments show that the proposed platinum lemniscate glass-fiber catalyst (LGFC) considerably surpasses (by 8–10 times and more) familiar geometric types of catalysts, microfiber and otherwise, in both the specific observed activity per unit active component mass and the ratio between the observed activity and the specific hydraulic resistance. The reason for its superiority is a uniquely high efficiency of mass transfer in the external diffusion region of reactions. Among the promising fields of application for the proposed systems are fast gasphase catalytic reactions, liquid-phase catalytic reactions, and complicated reaction processes, in which the selectivity and the yield of target products are sensitive to diffusion inhibition.

The Math Emporium: Effective for whom, and for what?

This study explores three aspects of a math emporium (ME), a model for offering introductory level college mathematics courses through the use of software and computer laboratories. Previous research shows that math emporia are generally effective in terms of improving final exam scores and passing rates. However, most research on math emporia does not investigate 1) whether the emporium serves certain populations differently than others, 2) the nature of mathematical learning that occurs in the ME, or 3) how the emporium is perceived by the enrolled students. In this paper, we used mixed methods to investigate each of these aspects in the case of a single ME serving nearly 300 intermediate algebra students. We found that the emporium appeared to best serve students with higher math achievement, who enjoyed mathematics, and who spent more time taking their exams. In terms of mathematical learning, the emporium appeared to improve students’ ability to recall and use formulas for familiar problem types, but had limited impact in terms of developing meaning for symbols or flexibility in solving unfamiliar tasks. In addition, students expressed mixed feeling about the autonomy provided by the structure of the emporium.