@article{KucianZuberKohnetal.2018,
  author    = {Kucian, Karin and Zuber, Isabelle and Kohn, Juliane and Poltz, Nadine and Wyschkon, Anne and Esser, G{\"u}nter and von Aster, Michael G.},
  title     = {Relation Between Mathematical Performance, Math Anxiety, and Affective Priming in Children With and Without Developmental Dyscalculia},
  series = {Frontiers in psychology},
  volume    = {9},
  journal   = {Frontiers in psychology},
  publisher = {Frontiers Research Foundation},
  address   = {Lausanne},
  issn      = {1664-1078},
  doi       = {10.3389/fpsyg.2018.00263},
  pages     = {13},
  year      = {2018},
  abstract  = {Many children show negative emotions related to mathematics and some even develop mathematics anxiety. The present study focused on the relation between negative emotions and arithmetical performance in children with and without developmental dyscalculia (DD) using an affective priming task. Previous findings suggested that arithmetic performance is influenced if an affective prime precedes the presentation of an arithmetic problem. In children with DD specifically, responses to arithmetic operations are supposed to be facilitated by both negative and mathematics-related primes (= negative math priming effect). We investigated mathematical performance, math anxiety, and the domain-general abilities of 172 primary school children (76 with DD and 96 controls). All participants also underwent an affective priming task which consisted of the decision whether a simple arithmetic operation (addition or subtraction) that was preceded by a prime (positive/negative/neutral or mathematics-related) was true or false. Our findings did not reveal a negative math priming effect in children with DD. Furthermore, when considering accuracy levels, gender, or math anxiety, the negative math priming effect could not be replicated. However, children with DD showed more math anxiety when explicitly assessed by a specific math anxiety interview and showed lower mathematical performance compared to controls. Moreover, math anxiety was equally present in boys and girls, even in the earliest stages of schooling, and interfered negatively with performance. In conclusion, mathematics is often associated with negative emotions that can be manifested in specific math anxiety, particularly in children with DD. Importantly, present findings suggest that in the assessed age group, it is more reliable to judge math anxiety and investigate its effects on mathematical performance explicitly by adequate questionnaires than by an affective math priming task.},
  language  = {en}
}
@misc{KucianZuberKohnetal.2018,
  author    = {Kucian, Karin and Zuber, Isabelle and Kohn, Juliane and Poltz, Nadine and Wyschkon, Anne and Esser, G{\"u}nter and von Aster, Michael G.},
  title     = {Relation between mathematical performance, math anxiety, and affective priming in children with and without developmental dyscalculia},
  series = {Postprints der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe},
  journal   = {Postprints der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe},
  number    = {684},
  issn      = {1866-8364},
  doi       = {10.25932/publishup-46067},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-460671},
  pages     = {15},
  year      = {2018},
  abstract  = {Many children show negative emotions related to mathematics and some even develop mathematics anxiety. The present study focused on the relation between negative emotions and arithmetical performance in children with and without developmental dyscalculia (DD) using an affective priming task. Previous findings suggested that arithmetic performance is influenced if an affective prime precedes the presentation of an arithmetic problem. In children with DD specifically, responses to arithmetic operations are supposed to be facilitated by both negative and mathematics-related primes (= negative math priming effect). We investigated mathematical performance, math anxiety, and the domain-general abilities of 172 primary school children (76 with DD and 96 controls). All participants also underwent an affective priming task which consisted of the decision whether a simple arithmetic operation (addition or subtraction) that was preceded by a prime (positive/negative/neutral or mathematics-related) was true or false. Our findings did not reveal a negative math priming effect in children with DD. Furthermore, when considering accuracy levels, gender, or math anxiety, the negative math priming effect could not be replicated. However, children with DD showed more math anxiety when explicitly assessed by a specific math anxiety interview and showed lower mathematical performance compared to controls. Moreover, math anxiety was equally present in boys and girls, even in the earliest stages of schooling, and interfered negatively with performance. In conclusion, mathematics is often associated with negative emotions that can be manifested in specific math anxiety, particularly in children with DD. Importantly, present findings suggest that in the assessed age group, it is more reliable to judge math anxiety and investigate its effects on mathematical performance explicitly by adequate questionnaires than by an affective math priming task.},
  language  = {en}
}
@misc{KohnRauscherKucianetal.2020,
  author    = {Kohn, Juliane and Rauscher, Larissa and Kucian, Karin and K{\"a}ser, Tanja and Wyschkon, Anne and Esser, G{\"u}nter and von Aster, Michael G.},
  title     = {Efficacy of a Computer-Based Learning Program in Children With Developmental Dyscalculia},
  series = {Postprints der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe},
  journal   = {Postprints der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe},
  number    = {650},
  issn      = {1866-8364},
  doi       = {10.25932/publishup-47415},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-474159},
  pages     = {16},
  year      = {2020},
  abstract  = {This study presents the evaluation of a computer-based learning program for children with developmental dyscalculia and focuses on factors affecting individual responsiveness. The adaptive training program Calcularis 2.0 has been developed according to current neuro-cognitive theory of numerical cognition. It aims to automatize number representations, supports the formation and access to the mental number line and trains arithmetic operations as well as arithmetic fact knowledge in expanding number ranges. Sixty-seven children with developmental dyscalculia from second to fifth grade (mean age 8.96 years) were randomly assigned to one of two groups (Calcularis group, waiting control group). Training duration comprised a minimum of 42 training sessions {\`a} 20 min within a maximum period of 13 weeks. Compared to the waiting control group, children of the Calcularis group demonstrated a higher benefit in arithmetic operations and number line estimation. These improvements were shown to be stable after a 3-months post training interval. In addition, this study examines which predictors accounted for training improvements. Results indicate that this self-directed training was especially beneficial for children with low math anxiety scores and without an additional reading and/or spelling disorder. In conclusion, Calcularis 2.0 supports children with developmental dyscalculia to improve their arithmetical abilities and their mental number line representation. However, it is relevant to further adapt the setting to the individual circumstances.},
  language  = {en}
}
@misc{SchulzWyschkonGallitetal.2018,
  author    = {Schulz, Franziska and Wyschkon, Anne and Gallit, Finja Sunnyi and Poltz, Nadine and Moraske, Svenja and Kucian, Karin and von Aster, Michael G. and Esser, G{\"u}nter},
  title     = {Rechenprobleme von Grundschulkindern},
  series = {Postprints der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe},
  journal   = {Postprints der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe},
  number    = {634},
  issn      = {1866-8364},
  doi       = {10.25932/publishup-44138},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-441388},
  pages     = {67 -- 80},
  year      = {2018},
  abstract  = {Fragestellung: Ziel war die Untersuchung des Verlaufs von Kindern mit Rechenst{\"o}rungen bzw. Rechenschw{\"a}chen. Neben der Persistenz wurden Auswirkungen von Rechenproblemen auf k{\"u}nftige Rechenleistungen sowie den Schulerfolg gepr{\"u}ft. Methodik: F{\"u}r 2909 Sch{\"u}ler der 2. bis 5. Klasse liegen die Resultate standardisierter Rechen- und Intelligenztests vor. Ein Teil dieser Kinder ist nach 37 und 68 Mona-ten erneut untersucht worden. Ergebnisse: Die Pr{\"a}valenz von Rechenst{\"o}rungen betrug 1.4 \%, Rechenschw{\"a}chen traten bei 11.2 \% auf. Rechen-probleme zeigten eine mittlere bis hohe Persistenz. Sch{\"u}ler mit Rechenschw{\"a}che blieben im Rechnen gut eine Standardabweichung hinter durchschnittlich und ca. eine halbe Standardabweichung hinter unterdurchschnittlich intelligenten Kontrollkindern zur{\"u}ck. Der allgemeine Schulerfolg rechenschwacher Probanden (definiert {\"u}ber Mathematiknote, Deutschnote und Schultyp) {\"a}hnelte dem der unterdurchschnittlich intelligenten Kontrollgruppe und blieb hinter dem Schulerfolg durchschnittlich intelligenter Kontrollkinder zur{\"u}ck. Eingangs {\"a}ltere Probanden mit Rechenproblemen (4. bis 5. Klasse) wiesen eine schlechtere Prognose auf als Kinder, die zu Beginn die 2. oder 3. Klasse besuchten. Schluss-folgerungen: Rechenprobleme stellen ein ernsthaftes Entwicklungsrisiko dar. L{\"a}ngsschnittuntersuchungen, die Kinder mit streng definierter Rechenst{\"o}rung bis ins Erwachsenenalter begleiten und Pr{\"a}diktoren f{\"u}r unterschiedlich erfolgreiche Verl{\"a}ufe ermitteln, sind dringend notwendig.},
  language  = {de}
}
@misc{GallitWyschkonPoltzetal.2018,
  author    = {Gallit, Finja and Wyschkon, Anne and Poltz, Nadine and Moraske, Svenja and Kucian, Karin and von Aster, Michael G. and Esser, G{\"u}nter},
  title     = {Henne oder Ei},
  series = {Postprints der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe},
  journal   = {Postprints der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe},
  number    = {632},
  issn      = {1866-8364},
  doi       = {10.25932/publishup-44135},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-441356},
  pages     = {81 -- 92},
  year      = {2018},
  abstract  = {Fragestellung: Ziel war die Untersuchung der Entwicklung und wechselseitigen Beziehung von Zahlen- und Mengenvorwissen (ZMW), Arbeitsged{\"a}chtnis (AG) und Intelligenz sowie deren Vorhersagekraft f{\"u}r die Rechenleistung in der ersten Klasse. Methodik: 1897 Kindergartenkinder nahmen an dieser Studie teil. Ein Teil dieser Kinder wurde 9 Monate sp{\"a}ter und erneut in der ersten Klasse untersucht. Ergebnisse: W{\"a}hrend des Kindergartenjahres verbesserten sich die Kinder in allen untersuchten Leistungen. Reziproke Zusammenh{\"a}nge zwischen den drei erhobenen Vorl{\"a}uferf{\"a}higkeiten konnten nachgewiesen werden. Das ZMW erwies sich als guter Pr{\"a}diktor f{\"u}r die AG- und Intelligenzleistung. Bei der {\"U}berpr{\"u}fung der Vorhersage des Rechnens erwies sich das ZMW als bester Pr{\"a}diktor der sp{\"a}teren Rechenleistung. Erwartungsgem{\"a}ß zeigten die zu t1 erfassten allgemein-kognitiven Leistungen indirekte Effekte {\"u}ber das ZMW auf die Rechenleistung. Die Intelligenz und das AG zu t2 konnten direkt zur Vorhersage des Rechnens in der ersten Klasse beitragen. Schlussfolgerungen: Die Ergebnisse verdeutlichen, dass das AG und die Intelligenz zwar an dem Aufbau des ZMW beteiligt sind, aber vor allem selbst durch dieses vorhergesagt werden. Die Daten sprechen daf{\"u}r das Potenzial des ZMWs in Trainingsprogrammen zu nutzen, durch dessen F{\"o}rderung auch intellektuelle und Ged{\"a}chtnisleistungen zunehmen k{\"o}nnen, die allesamt die schulische Rechenleistung positiv beeinflussen.},
  language  = {de}
}
@misc{MoraskeWyschkonPoltzetal.2018,
  author    = {Moraske, Svenja and Wyschkon, Anne and Poltz, Nadine and Kucian, Karin and Aster, Michael and Esser, G{\"u}nter},
  title     = {LRS-Pr{\"a}vention bei Risikokindern},
  series = {Postprints der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe},
  journal   = {Postprints der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe},
  number    = {672},
  issn      = {1866-8364},
  doi       = {10.25932/publishup-44142},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-441426},
  pages     = {171 -- 183},
  year      = {2018},
  abstract  = {Fragestellung: Ziel der Studie war die {\"U}berpr{\"u}fung der Wirksamkeit einer vorschulischen F{\"o}rderung der phonologischen Bewusstheit und der Buchstaben-Laut-Verkn{\"u}pfung bei Kindern mit einem Risiko f{\"u}r die Entwicklung einer Lese-Rechtschreibst{\"o}rung (LRS) unter Bedingungen, die sich am Alltag der Kindertagesst{\"a}tten orientierten und somit auch bei einem breiten Einsatz des Programms eine relativ {\"o}konomische Variante darstellen. Methodik: Die Risikokinder der Trainingsgruppe (n = 20) wurden {\"u}ber 11 Wochen mit den Programmen H{\"o}ren, Lauschen, Lernen 1 und 2 (K{\"u}spert \& Schneider, 2008; Plume \& Schneider, 2004) von Erzieherinnen gef{\"o}rdert. Sie wurden einer nicht-gef{\"o}rderten Risiko-Kontrollgruppe (n = 43) hinsichtlich ihrer Lese- und Rechtschreibleistungen sowie der H{\"a}ufigkeit von LRS von der 1. bis zur 3. Klasse gegen{\"u}bergestellt. Dabei wurden neben den Daten regul{\"a}r eingeschulter Kinder auch jene in die Analyse inkludiert, die vom Schulbesuch zur{\"u}ckgestellt wurden. Ergebnisse: Im 1. und 2. Grundschuljahr zeigten die trainierten Risikokinder im Lesen und Rechtschreiben einen mindestens tendenziellen Leistungsvorsprung gegen{\"u}ber nicht-gef{\"o}rderten Risikokindern. Trainingseffekte zeigten sich ebenfalls in einer Reduktion der Anzahl von Kindern mit LRS bis Klasse 2, tendenziell auch in Klasse 3. Schlussfolgerung: Insgesamt sprechen die Befunde f{\"u}r die Wirksamkeit des Trainings in der prim{\"a}ren Pr{\"a}vention von Lese-Rechtschreibschwierigkeiten bei Risikokindern unter alltagsnahen Bedingungen.},
  language  = {de}
}
@article{EhlertPoltzQuandteetal.2022,
  author    = {Ehlert, Antje and Poltz, Nadine and Quandte, Sabine and Kohn-Henkel, Juliane and Kucian, Karin and Aster, Michael von and Esser, G{\"u}nter},
  title     = {Taking a closer look: The relationship between pre-school domain general cognition and school mathematics achievement when controlling for intelligence},
  series = {Journal of Intelligence},
  volume    = {10},
  journal   = {Journal of Intelligence},
  edition   = {3},
  publisher = {MDPI},
  address   = {Basel, Schweiz},
  issn      = {2079-3200},
  doi       = {10.3390/jintelligence10030070},
  pages     = {1 -- 23},
  year      = {2022},
  abstract  = {Intelligence, as well as working memory and attention, affect the acquisition of mathematical competencies. This paper aimed to examine the influence of working memory and attention when taking different mathematical skills into account as a function of children's intellectual ability. Overall, intelligence, working memory, attention and numerical skills were assessed twice in 1868 German pre-school children (t1, t2) and again at 2nd grade (t3). We defined three intellectual ability groups based on the results of intellectual assessment at t1 and t2. Group comparisons revealed significant differences between the three intellectual ability groups. Over time, children with low intellectual ability showed the lowest achievement in domain-general and numerical and mathematical skills compared to children of average intellectual ability. The highest achievement on the aforementioned variables was found for children of high intellectual ability. Additionally, path modelling revealed that, depending on the intellectual ability, different models of varying complexity could be generated. These models differed with regard to the relevance of the predictors (t2) and the future mathematical skills (t3). Causes and conclusions of these findings are discussed.},
  language  = {en}
}
@article{KucianKohnHannulaSormunenetal.2012,
  author    = {Kucian, Karin and Kohn, Juliane and Hannula-Sormunen, Minna M. and Richtmann, Verena and Grond, Ursin and K{\"a}ser, Tanja and Esser, G{\"u}nter and von Aster, Michael G.},
  title     = {Kinder mit Dyskalkulie fokussieren spontan weniger auf Anzahligkeit},
  year      = {2012},
  language  = {de}
}
@unpublished{KaufmannMazzoccoDowkeretal.2013,
  author    = {Kaufmann, Liane and Mazzocco, Michele M. and Dowker, Ann and von Aster, Michael G. and Goebel, Silke M. and Grabner, Roland H. and Henik, Avishai and Jordan, Nancy C. and Karmiloff-Smith, Annette D. and Kucian, Karin and Rubinsten, Orly and Szucs, Denes and Shalev, Ruth and Nuerk, Hans-Christoph},
  title     = {Dyscalculia from a developmental and differential perspective},
  series = {Frontiers in psychology},
  volume    = {4},
  journal   = {Frontiers in psychology},
  number    = {2},
  publisher = {Frontiers Research Foundation},
  address   = {Lausanne},
  issn      = {1664-1078},
  doi       = {10.3389/fpsyg.2013.00516},
  pages     = {5},
  year      = {2013},
  language  = {en}
}
@unpublished{KucianPlanggerO'Gormanetal.2013,
  author    = {Kucian, Karin and Plangger, Fabienne and O'Gorman, Ruth and von Aster, Michael G.},
  title     = {Operational momentum effect in children with and without developmental dyscalculia},
  series = {Frontiers in psychology},
  volume    = {4},
  journal   = {Frontiers in psychology},
  number    = {45},
  publisher = {Frontiers Research Foundation},
  address   = {Lausanne},
  issn      = {1664-1078},
  doi       = {10.3389/fpsyg.2013.00847},
  pages     = {3},
  year      = {2013},
  language  = {en}
}
@article{KaeserBascheraKohnetal.2013,
  author    = {K{\"a}ser, Tanja and Baschera, Gian-Marco and Kohn, Juliane and Kucian, Karin and Richtmann, Verena and Grond, Ursina and Gross, Markus and von Aster, Michael G.},
  title     = {Design and evaluation of the computer-based training program Calcularis for enhancing numerical cognition},
  series = {Frontiers in psychology},
  volume    = {4},
  journal   = {Frontiers in psychology},
  number    = {31},
  publisher = {Frontiers Research Foundation},
  address   = {Lausanne},
  issn      = {1664-1078},
  doi       = {10.3389/fpsyg.2013.00489},
  pages     = {13},
  year      = {2013},
  abstract  = {This article presents the design and a first pilot evaluation of the computer-based training program Calcularis for children with developmental dyscalculia (DD) or difficulties in learning mathematics. The program has been designed according to insights on the typical and atypical development of mathematical abilities. The learning process is supported through multimodal cues, which encode different properties of numbers. To offer optimal learning conditions, a user model completes the program and allows flexible adaptation to a child's individual learning and knowledge profile. Thirty-two children with difficulties in learning mathematics completed the 6-12-weeks computer training. The children played the game for 20 min per day for 5 days a week. The training effects were evaluated using neuropsychological tests. Generally, children benefited significantly from the training regarding number representation and arithmetic operations. Furthermore, children liked to play with the program and reported that the training improved their mathematical abilities.},
  language  = {en}
}
@misc{RauscherKohnKaeseretal.2016,
  author    = {Rauscher, Larissa and Kohn, Juliane and K{\"a}ser, Tanja and Mayer, Verena and Kucian, Karin and McCaskey, Ursina and Esser, G{\"u}nter and von Aster, Michael G.},
  title     = {Evaluation of a computer-based training program for enhancing arithmetic skills and spatial number representation in primary school children},
  series = {Postprints der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe},
  journal   = {Postprints der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe},
  number    = {430},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-406727},
  pages     = {14},
  year      = {2016},
  abstract  = {Calcularis is a computer-based training program which focuses on basic numerical skills, spatial representation of numbers and arithmetic operations. The program includes a user model allowing flexible adaptation to the child's individual knowledge and learning profile. The study design to evaluate the training comprises three conditions (Calcularis group, waiting control group, spelling training group). One hundred and thirty-eight children from second to fifth grade participated in the study. Training duration comprised a minimum of 24 training sessions of 20 min within a time period of 6-8 weeks. Compared to the group without training (waiting control group) and the group with an alternative training (spelling training group), the children of the Calcularis group demonstrated a higher benefit in subtraction and number line estimation with medium to large effect sizes. Therefore, Calcularis can be used effectively to support children in arithmetic performance and spatial number representation.},
  language  = {en}
}
@article{RauscherKohnKaeseretal.2016,
  author    = {Rauscher, Larissa and Kohn, Juliane and K{\"a}ser, Tanja and Mayer, Verena and Kucian, Karin and McCaskey, Ursina and Esser, G{\"u}nter and von Aster, Michael G.},
  title     = {Evaluation of a Computer-Based Training Program for Enhancing Arithmetic Skills and Spatial Number Representation in Primary School Children},
  series = {Frontiers in psychology},
  volume    = {7},
  journal   = {Frontiers in psychology},
  publisher = {Frontiers Research Foundation},
  address   = {Lausanne},
  issn      = {1664-1078},
  doi       = {10.3389/fpsyg.2016.00913},
  pages     = {14086 -- 14099},
  year      = {2016},
  abstract  = {Calcularis is a computer-based training program which focuses on basic numerical skills, spatial representation of numbers and arithmetic operations. The program includes a user model allowing flexible adaptation to the child's individual knowledge and learning profile. The study design to evaluate the training comprises three conditions (Calcularis group, waiting control group, spelling training group). One hundred and thirty-eight children from second to fifth grade participated in the study. Training duration comprised a minimum of 24 training sessions of 20 min within a time period of 6-8 weeks. Compared to the group without training (waiting control group) and the group with an alternative training (spelling training group), the children of the Calcularis group demonstrated a higher benefit in subtraction and number line estimation with medium to large effect sizes. Therefore, Calcularis can be used effectively to support children in arithmetic performance and spatial number representation.},
  language  = {en}
}
@article{KohnRauscherKucianetal.2020,
  author    = {Kohn, Juliane and Rauscher, Larissa and Kucian, Karin and K{\"a}ser, Tanja and Wyschkon, Anne and Esser, G{\"u}nter and von Aster, Michael G.},
  title     = {Efficacy of a Computer-Based Learning Program in Children With Developmental Dyscalculia},
  series = {Frontiers in Psychology},
  volume    = {11},
  journal   = {Frontiers in Psychology},
  publisher = {Frontiers Research Foundation},
  address   = {Lausanne},
  issn      = {1664-1078},
  doi       = {10.3389/fpsyg.2020.01115},
  pages     = {14},
  year      = {2020},
  abstract  = {This study presents the evaluation of a computer-based learning program for children with developmental dyscalculia and focuses on factors affecting individual responsiveness. The adaptive training program Calcularis 2.0 has been developed according to current neuro-cognitive theory of numerical cognition. It aims to automatize number representations, supports the formation and access to the mental number line and trains arithmetic operations as well as arithmetic fact knowledge in expanding number ranges. Sixty-seven children with developmental dyscalculia from second to fifth grade (mean age 8.96 years) were randomly assigned to one of two groups (Calcularis group, waiting control group). Training duration comprised a minimum of 42 training sessions {\`a} 20 min within a maximum period of 13 weeks. Compared to the waiting control group, children of the Calcularis group demonstrated a higher benefit in arithmetic operations and number line estimation. These improvements were shown to be stable after a 3-months post training interval. In addition, this study examines which predictors accounted for training improvements. Results indicate that this self-directed training was especially beneficial for children with low math anxiety scores and without an additional reading and/or spelling disorder. In conclusion, Calcularis 2.0 supports children with developmental dyscalculia to improve their arithmetical abilities and their mental number line representation. However, it is relevant to further adapt the setting to the individual circumstances.},
  language  = {en}
}
@misc{EhlertPoltzQuandteetal.2022,
  author    = {Ehlert, Antje and Poltz, Nadine and Quandte, Sabine and Kohn-Henkel, Juliane and Kucian, Karin and Aster, Michael von and Esser, G{\"u}nter},
  title     = {Taking a closer look: The relationship between pre-school domain general cognition and school mathematics achievement when controlling for intelligence},
  series = {Zweitver{\"o}ffentlichungen der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe},
  journal   = {Zweitver{\"o}ffentlichungen der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe},
  publisher = {Universit{\"a}tsverlag Potsdam},
  address   = {Potsdam},
  issn      = {1866-8364},
  doi       = {10.25932/publishup-56233},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-562337},
  pages     = {1 -- 23},
  year      = {2022},
  abstract  = {Intelligence, as well as working memory and attention, affect the acquisition of mathematical competencies. This paper aimed to examine the influence of working memory and attention when taking different mathematical skills into account as a function of children's intellectual ability. Overall, intelligence, working memory, attention and numerical skills were assessed twice in 1868 German pre-school children (t1, t2) and again at 2nd grade (t3). We defined three intellectual ability groups based on the results of intellectual assessment at t1 and t2. Group comparisons revealed significant differences between the three intellectual ability groups. Over time, children with low intellectual ability showed the lowest achievement in domain-general and numerical and mathematical skills compared to children of average intellectual ability. The highest achievement on the aforementioned variables was found for children of high intellectual ability. Additionally, path modelling revealed that, depending on the intellectual ability, different models of varying complexity could be generated. These models differed with regard to the relevance of the predictors (t2) and the future mathematical skills (t3). Causes and conclusions of these findings are discussed.},
  language  = {en}
}
@misc{PoltzQuandteKohnetal.2022,
  author    = {Poltz, Nadine and Quandte, Sabine and Kohn, Juliane and Kucian, Karin and Wyschkon, Anne and von Aster, Michael and Esser, G{\"u}nter},
  title     = {Does It Count? Pre-School Children's Spontaneous Focusing on Numerosity and Their Development of Arithmetical Skills at School},
  series = {Zweitver{\"o}ffentlichungen der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe},
  journal   = {Zweitver{\"o}ffentlichungen der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe},
  publisher = {Universit{\"a}tsverlag Potsdam},
  address   = {Potsdam},
  issn      = {1866-8364},
  doi       = {10.25932/publishup-56028},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-560283},
  pages     = {1 -- 18},
  year      = {2022},
  abstract  = {Background: Children's spontaneous focusing on numerosity (SFON) is related to numerical skills. This study aimed to examine (1) the developmental trajectory of SFON and (2) the interrelations between SFON and early numerical skills at pre-school as well as their influence on arithmetical skills at school. Method: Overall, 1868 German pre-school children were repeatedly assessed until second grade. Nonverbal intelligence, visual attention, visuospatial working memory, SFON and numerical skills were assessed at age five (M = 63 months, Time 1) and age six (M = 72 months, Time 2), and arithmetic was assessed at second grade (M = 95 months, Time 3). Results: SFON increased significantly during pre-school. Path analyses revealed interrelations between SFON and several numerical skills, except number knowledge. Magnitude estimation and basic calculation skills (Time 1 and Time 2), and to a small degree number knowledge (Time 2), contributed directly to arithmetic in second grade. The connection between SFON and arithmetic was fully mediated by magnitude estimation and calculation skills at pre-school. Conclusion: Our results indicate that SFON first and foremost influences deeper understanding of numerical concepts at pre-school and—in contrast to previous findings -affects only indirectly children's arithmetical development at school.},
  language  = {en}
}
@article{PoltzQuandteKohnetal.2022,
  author    = {Poltz, Nadine and Quandte, Sabine and Kohn, Juliane and Kucian, Karin and Wyschkon, Anne and von Aster, Michael and Esser, G{\"u}nter},
  title     = {Does It Count? Pre-School Children's Spontaneous Focusing on Numerosity and Their Development of Arithmetical Skills at School},
  series = {Brain Sciences},
  volume    = {12},
  journal   = {Brain Sciences},
  edition   = {3},
  publisher = {MDPI},
  address   = {Basel, Schweiz},
  issn      = {2076-3425},
  doi       = {10.3390/brainsci12030313},
  pages     = {1 -- 18},
  year      = {2022},
  abstract  = {Background: Children's spontaneous focusing on numerosity (SFON) is related to numerical skills. This study aimed to examine (1) the developmental trajectory of SFON and (2) the interrelations between SFON and early numerical skills at pre-school as well as their influence on arithmetical skills at school. Method: Overall, 1868 German pre-school children were repeatedly assessed until second grade. Nonverbal intelligence, visual attention, visuospatial working memory, SFON and numerical skills were assessed at age five (M = 63 months, Time 1) and age six (M = 72 months, Time 2), and arithmetic was assessed at second grade (M = 95 months, Time 3). Results: SFON increased significantly during pre-school. Path analyses revealed interrelations between SFON and several numerical skills, except number knowledge. Magnitude estimation and basic calculation skills (Time 1 and Time 2), and to a small degree number knowledge (Time 2), contributed directly to arithmetic in second grade. The connection between SFON and arithmetic was fully mediated by magnitude estimation and calculation skills at pre-school. Conclusion: Our results indicate that SFON first and foremost influences deeper understanding of numerical concepts at pre-school and—in contrast to previous findings -affects only indirectly children's arithmetical development at school.},
  language  = {en}
}