Schmidt, C., Brandenburg, J., Busch, J., Büttner, G., Grube, D., Mähler, C. & Hasselhorn, M. (2019).
Developmental Trajectories of Phonological Information Processing in Children with Specific Reading or Spelling Disabilities.
Manuscript submitted for publication.

Busch, J., Schmidt, C., Studte, S., & Grube, D. (2018).
Cognitive characteristics of numeracy-impaired children as a function of the cut-off criterion.
Learning and Learning Disorders, 1-12. doi:10.1024/2235-0977/a000258

Grube, D., Busch, J. & Schmidt, C. (2017).
Cognitive conditions of dyscalculia.
In: A., Fritz, S. Schmidt & G. Ricken (Eds.). Handbuch Rechenschwäche: Lernwege, Schwierigkeiten und Hilfen bei Dyskalkulie (3rd ed.). Weinheim: Beltz.

Busch, J. Schmidt, C., & Grube, D. (2015).
Arithmetic Fact Retrieval - Are There Differences Between Children With Developmental Dyscalculia and Those With Mathematical Difficulties?
Journal of Psychology, 223, 110-119.

Busch, J., Oranu, N., Schmidt, C., & Grube, D. (2013).
Arithmetical disabilities in elementary school years: Difficulties in retrieving basic arithmetic facts and working memory load in third graders].
Learning and Learning Disorders, 2, 210-227 Fischbach,

A., Schuchardt, K., Brandenburg, J., Klesczewski, J., Balke-Melcher, C., Schmidt, C., et al. (2013).
Prevalence of learning disabilities and learning disorders: On the importance of diagnostic criteria. [Prevalence of poor learners and children with learning disorders: Investigating the role of diagnostic criteria].
Learning and learning disorders, doi:10.1024/2235-0977/a000035

Schmidt, C., Busch, J. & Grube, D. (2019).
Memory performance in children with isolated reading difficulties depending on the cut-off criterion used

Presentation at the joint conference of the Educational Psychology & Developmental Psychology groups from 12 to 14 September 2019 in Leipzig.

Grube, D., Busch, J., Krone, M., Roden, I., Schmidt, C. & Studte, S. (2019).
Promoting numerical competence in the last year of kindergarten: Under what conditions is it effective?
Presentation at the Fachgruppentagung Pädagogische Psychologie & Entwicklungspsychologie from 12 to 14 September 2019 in Leipzig.

Busch, J., Schmidt, C. & Grube (2018).
Effects of computer-assisted training to build arithmetic facts.
Presentation at the 51st Congress of the German Psychological Society from 15 to 20 September 2018 in
Frankfurt.

Schmidt, C., Busch, J. & Grube, D. (2017).
Cognitive Profiles of Children With Isolated Reading Versus Isolated Spelling Difficulties: The Same or
Different?
Poster presented at the Biennial Meeting of the Society for Research in Child Development (SRCD). April 6 - 8, 2017 - Austin, Texas, USA.

Schmidt, C., Busch, J. & Grube, D. (2017).
Reading versus spelling difficulties: Are there differences in the cognitive
characteristics of children with isolated written language difficulties?
Presentation at the Joint Conference of the Developmental Psychology and Educational Psychology Groups, 11-14 September 2017 in Münster.

Busch, J., Schmidt, C. & Grube (2017).
Dyscalculia and dyscalculia: Are there differences in number comparison tasks?
Presentation at the joint conference of the Developmental Psychology and Educational
Psychology groups in Münster, 11-14 September 2017.

Busch, J., Schmidt, C. & Grube (2017).
Strengthening Arithmetic Facts:
Evaluation of a Computer-Based Intervention for Children With and Without Mathematical Difficulties.
Poster presented at Yearly meeting and International Symposium of the BMBF program "Entwicklungsstörungen schulischer Fertigkeiten", Munich, 3-4 May 2017.

Schmidt, C., Busch, J., Büttner, G., Grube, D., Mähler, C.& Hasselhorn, M. (2017).
Development of Phonological Information Processing Skills in Children With Reading or Spelling Difficulties.
Poster presented at Yearly meeting and International Symposium of the BMBF program
"Entwicklungsstörungen schulischer Fertigkeiten", Munich, 3-4 May 2017.

Schmidt, C., Busch, J. & Grube, D. (2016).
Development of phonological information processing in children with isolated or combined
written language difficulties.
Presentation at the 50th Congress of the German Psychological Society from 18 to 22 September 2016 in Leipzig.

Busch, J., Schmidt, C. & Grube (2016).
Cognitive characteristics of children with dyscalculia under consideration of different cut-off criteria.
Presentation at the 50th Congress of the German Psychological Society in Leipzig, 18-22 September 2016.

Busch, J., Schmidt, C. & Grube (2016).
Calculation strategies of weak calculators and derivation of support hints.
Presentation at the 4th conference of the Gesellschaft für empirische Bildungsforschung (GEBF) from 9 to 11 March
2016 in Berlin.

Busch, J., Schmidt, C. & Grube (2016).
Dyscalculia - basics and possibilities of school intervention.
Presentation at the Lower Saxony Counselling Teachers' Congress on 6 April 2016 in Hildesheim.

Schmidt, C. Busch, J. & Grube, D. (2015).
Development of single word reading skills in German children with and without reading difficulties.
Poster presented at the Biennial Meeting of the Society for Research in Child Development (SRCD). March 19 - 21, 2015, Philadelphia, PA (USA).

Busch, J., Schmidt, C. & Grube, D. (2015).
Counting on counting: Strategy use in primary school children with and without mathematical difficulties.
Poster presented at the Biennial Meeting of the Society for Research in Child Development (SRCD). March 19 - 21, 2015, Philadelphia, PA (USA).

Grube, D., Schmidt, C. & Busch, J. (2015).
Mathematics disorder: The role of working memory and intelligence.
Paper presented at Annual Meeting of the American Educational Research Association (AERA). April 16 -20, 2015, Chicago, IL (USA).

Schmidt, C. Busch, J. & Grube, D. (2015).
The development of phonological information processing in children with reading and spelling disorder.
Presentation at the conference of the Division of Developmental Psychology of the German Psychological Society from 31 August to 2 September 2015 in Frankfurt am Main.

Busch, J., Schmidt, C. & Grube, D. (2015).
Mathematics performance: The importance of working memory and basic numerical skills in primary school pupils with and without dyscalculia.
Presentation at the 15th Specialist Group Conference on Educational Psychology from 14 to 16 September 2015 in Kassel.

Grube, D., Schmidt, C. & Busch, J. (2015).
On the significance of the discrepancy criterion to intelligence for the definition of dyscalculia: Differential characteristics and support options for children with dyscalculia.
Presentation at the coordination meeting of the BMBF research focus "Entwicklungsstörungen schulischer Fertigkeiten", 11-13 November 2015 in Frankfurt.

Busch, J., Schmidt, C. & Grube, D. (2014).
On the development of arithmetic fact knowledge and working memory in primary school pupils with and without arithmetic difficulties.
Presentation at the 49th Congress of the German Psychological Society from 21 to 25 September 2014 in Bochum.

Grube, D., Schmidt, C. & Busch, J. (2014).
Simple calculation as a causal factor for arithmetical disabilities and the role of intelligence.
Poster presented at the Special Interest Group (SIG) Meeting of the European Association for Research on Learning and Instruction (EARLI), SIG 15: "Special Educational Needs", August 25 - 26, 2014, Zurich, Switzerland.

Schmidt, C., Busch, J. & Grube, D. (2014).
The predictive value of information processing variables and linguistic skills for reading and spelling performance in children with and without literacy difficulties at the end of grade four.
Paper presented at the Conference for Junior Researchers JURE of the European Association for Research on Learning and Instruction (EARLI), 2014, June, 30 - July, 04, Nicosia, Cyprus.

Busch, J., Schmidt, C. & Grube, D. (2014).
Working memory, basic arithmetic fact knowledge and basic numerical processing in primary school children: Analyses for mathematical performance.
Paper presented at the Conference for Junior Researchers JURE of the European Association for Research on Learning and Instruction (EARLI), 2014, June, 30 - July, 04, Nicosia, Cyprus.

Busch, J., Oranu, N., Schmidt, C. & Grube, D. (2013).
The role of basic arithmetic facts in children with arithmetical disabilities.
Poster presented at the Biennial Meeting of the Society for Research in Child Development (SRCD), April 18 - 20, 2013, Seattle, WA (USA).

Oranu, N., Busch, J., Schmidt, C. & Grube, D. (2013).
Working memory characteristics in children with math difficulties and the influence of intelligence.
Poster presented at the Biennial Meeting of the Society for Research in Child Development (SRCD), April 18 - 20, 2013, Seattle, WA (USA).

Schmidt, C. & Grube, D. (2013).
Dyslexia: Phonological information processing in children with difficulties in reading and spelling with average and below average intelligence.
Paper presented at the Pre-conference for Junior Researchers JURE of the European Association for Research on Learning and Instruction (EARLI), 2013, August, 25 - 27, Munich, Germany.

Busch, J., Schmidt, C. & Grube, D. (2013).
Mathematical deficits in children with higher and lower intelligence: The role of basic arithmetic fact knowledge.
Paper presented at the Pre-conference for Junior Researchers JURE of the European Association for Research on Learning and Instruction (EARLI), 2013, August, 25 - 27, Munich, Germany.

Busch, J., Schmidt, C. & Grube, D. (2013).
Fragile basal arithmetic factual knowledge in third graders with dyscalculia.
Presentation at the 14th Educational Psychology Conference from 23 to 25 September 2013 in Hildesheim.

Schmidt, C., Busch, J. & Grube, D. (2013).
Working memory characteristics in children with arithmetic difficulties with average and below-average intelligence.
Presentation at the 14th Educational Psychology Conference from 23 to 25 September 2013 in Hildesheim.

Grube, D., Schmidt, C. & Busch, J. (2013).
On the significance of the discrepancy criterion to intelligence for the definition of dyscalculia: tests of working memory and basal arithmetic factual knowledge.
Presentation at the annual meeting of the BMBF research focus "Entwicklungsstörungen schulischer Fertigkeiten" from 11-13 November 2013 in Munich.

Grube, D. & Busch, J., Oranu, N., (2012).
How relevant is intelligence (discrepancy) for the phenomenon and definition of dsycalculia?
Yearly meeting and International Symposium of the BMBF program "Entwicklungsstörungen schulischer Fertigkeiten", Bad Salzschlirf, October 11th 2012.