Richard K Olson

Richard K Olson

UNVERIFIED PROFILE

Are you Richard K Olson?   Register this Author

Register author
Richard K Olson

Richard K Olson

Publications by authors named "Richard K Olson"

Are you Richard K Olson?   Register this Author

92Publications

1246Reads

6Profile Views

Differential Influences of Genes and Environment Across the Distribution of Reading Ability.

Behav Genet 2019 Aug 5. Epub 2019 Aug 5.

Department of Psychology, University of New England, Library Rd, Armidale, NSW, 2350, Australia.

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1007/s10519-019-09966-7DOI Listing
August 2019

Cross-Country Differences in Parental Reporting of Symptoms of ADHD.

J Cross Cult Psychol 2019 Jul 4;50(6):806-824. Epub 2019 Jun 4.

University of Colorado Boulder and Linköping University.

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1177/0022022119852422DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6625658PMC
July 2019

Little Evidence That Socioeconomic Status Modifies Heritability of Literacy and Numeracy in Australia.

Child Dev 2019 Mar 18;90(2):623-637. Epub 2017 Aug 18.

University of Colorado.

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1111/cdev.12920DOI Listing
March 2019

Invariance of ADHD Symptoms Across Sex and Age: a Latent Analysis of ADHD and Impairment Ratings from Early Childhood into Adolescence.

J Abnorm Child Psychol 2019 Jan;47(1):21-34

Department of Psychology and Neuroscience, University of Colorado Boulder, UCB 345, Boulder, CO, 80309-0345, USA.

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1007/s10802-018-0434-6DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6202270PMC
January 2019

Differential impact of trait sluggish cognitive tempo and ADHD inattention in early childhood on adolescent functioning.

J Child Psychol Psychiatry 2018 10 29;59(10):1094-1104. Epub 2018 Jun 29.

Department of Psychology and Neuroscience, University of Colorado Boulder, Boulder, CO, USA.

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1111/jcpp.12946DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6158103PMC
October 2018

Literacy acquisition influences children's rapid automatized naming.

Dev Sci 2018 05 15;21(3):e12589. Epub 2017 Aug 15.

Department of Behavioural Sciences and Learning, Linköping University, Linköping, Sweden.

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1111/desc.12589DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5997458PMC
May 2018

Gene-Environment Interactions in ADHD: The Roles of SES and Chaos.

J Abnorm Child Psychol 2018 02;46(2):251-263

Discipline of Psychology, University of New England, Armidale, NSW, 2351, Australia.

View Article

Download full-text PDF

Source
http://link.springer.com/10.1007/s10802-017-0268-7
Publisher Site
http://dx.doi.org/10.1007/s10802-017-0268-7DOI Listing
February 2018

Associations between selected dietary behaviours and academic achievement: A study of Australian school aged children.

Appetite 2017 09 6;116:372-380. Epub 2017 May 6.

School of Behavioural, Cognitive and Social Sciences The University of New England, Armidale, 2351, Australia.

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.appet.2017.05.008DOI Listing
September 2017

Explaining the sex difference in dyslexia.

J Child Psychol Psychiatry 2017 Jun 8;58(6):719-727. Epub 2017 Feb 8.

Institute for Behavioral Genetics, University of Colorado at Boulder, Boulder, CO, USA.

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1111/jcpp.12691DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5438271PMC
June 2017

Genetic Etiologies of Comorbidity and Stability for Reading Difficulties and ADHD: A Replication Study.

Twin Res Hum Genet 2016 12 17;19(6):647-651. Epub 2016 Oct 17.

Institute for Behavioral Genetics,University of Colorado,Boulder,Colorado,USA.

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1017/thg.2016.80DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5114151PMC
December 2016

Does the Environment Have an Enduring Effect on ADHD? A Longitudinal Study of Monozygotic Twin Differences in Children.

J Abnorm Child Psychol 2016 11;44(8):1487-1501

School of Behavioural, Cognitive, and Social Sciences, University of New England, Armidale, NSW, Australia.

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1007/s10802-016-0145-9DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5027180PMC
November 2016

Genetic and Environmental Influences on Literacy and Numeracy Performance in Australian School Children in Grades 3, 5, 7, and 9.

Behav Genet 2016 Sep 8;46(5):627-648. Epub 2016 Jun 8.

Queensland Institute of Medical Research, 300 Herston Rd, Herston, Brisbane, QLD, Australia.

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1007/s10519-016-9797-zDOI Listing
September 2016

Investigating the effects of copy number variants on reading and language performance.

J Neurodev Disord 2016 15;8:17. Epub 2016 May 15.

Language and Genetics Department, Max Planck Institute for Psycholinguistics, Wundtlaan 1, 6525 XD Nijmegen, The Netherlands ; Donders Institute for Brain Cognition and Behaviour, Nijmegen, The Netherlands.

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1186/s11689-016-9147-8DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4868026PMC
May 2016

The regulatory element READ1 epistatically influences reading and language, with both deleterious and protective alleles.

J Med Genet 2016 Mar 11;53(3):163-71. Epub 2015 Dec 11.

Investigate Medicine, Yale University, New Haven, Connecticut, USA Department of Pediatrics, Yale University, New Haven, Connecticut, USA Department of Investigative Medicine, Yale University, New Haven, Connecticut, USA.

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1136/jmedgenet-2015-103418DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4789805PMC
March 2016

The Colorado Longitudinal Twin Study of Reading Difficulties and ADHD: Etiologies of Comorbidity and Stability.

Twin Res Hum Genet 2015 Dec 5;18(6):755-61. Epub 2015 Nov 5.

Institute for Behavioral Genetics,University of Colorado,Boulder,CO,USA.

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1017/thg.2015.66DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4684790PMC
December 2015

Sex differences in ADHD symptom severity.

J Child Psychol Psychiatry 2015 Jun 4;56(6):632-9. Epub 2014 Oct 4.

Institute for Behavioral Genetics, University of Colorado at Boulder, Boulder, CO, USA.

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1111/jcpp.12337DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4385512PMC
June 2015

Validity of large-scale reading tests: A phenotypic and behaviour-genetic analysis.

Aust J Educ 2015 Apr 9;59(1):5-21. Epub 2015 Mar 9.

Director of Colorado Learning Disabilities Research Center, and Department of Psychology, University of Colorado, USA.

View Article

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5051576PMC
http://dx.doi.org/10.1177/0004944114563775DOI Listing
April 2015

Why do Children Differ in Their Development of Reading and Related Skills?

Sci Stud Read 2014 Dec;18(1):38-54

Department of Behavioral Sciences and Learning, Linköping University.

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1080/10888438.2013.800521DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4120985PMC
December 2014

Longitudinal stability and predictors of poor oral comprehenders and poor decoders.

J Exp Child Psychol 2013 Jul 23;115(3):497-516. Epub 2013 Mar 23.

Department of Behavioral Sciences and Learning, Linköping University, 581 83 Linköping, Sweden.

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.jecp.2012.12.001DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3661702PMC
July 2013

Genetic and environmental influences on writing and their relations to language and reading.

Ann Dyslexia 2013 Apr 13;63(1):25-43. Epub 2011 Aug 13.

Department of Psychology and Neuroscience, Institute for Behavioral Genetics, University of Colorado at Boulder, box 345, Boulder, CO 80309, USA.

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1007/s11881-011-0055-zDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3218215PMC
April 2013

The SWAN captures variance at the negative and positive ends of the ADHD symptom dimension.

J Atten Disord 2013 Feb 15;17(2):152-62. Epub 2011 Dec 15.

University of Denver, Frontier Hall, 2155 S. Race St., Denver, CO 80208, USA.

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1177/1087054711427399DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3330134PMC
February 2013

Multivariate genetic analysis of learning and early reading development.

Sci Stud Read 2013 Jan;17(3):224-242

Discipline of Psychology, School of Behavioural, Cognitive and Social Sciences, University of New England, Department of Behavioral Sciences, Linköping University.

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1080/10888438.2011.654298DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3633536PMC
January 2013

Modeling the Etiology of Individual Differences in Early Reading Development: Evidence for Strong Genetic Influences.

Sci Stud Read 2013 ;17(5):350-368

Department of Psychology and Neuroscience, and Institute for Behavioral Genetics, University of Colorado Boulder, and Department of Behavioral Sciences and Learning, Linköping University.

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1080/10888438.2012.729119DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3905458PMC
January 2013

A cross-lagged model of the development of ADHD inattention symptoms and rapid naming speed.

J Abnorm Child Psychol 2012 Nov;40(8):1313-26

Department of Psychology, University of Denver, Frontier Hall. 2155 S. Race St., Denver, CO 80208, USA.

View Article

Download full-text PDF

Source
http://link.springer.com/10.1007/s10802-012-9644-5
Publisher Site
http://dx.doi.org/10.1007/s10802-012-9644-5DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3546520PMC
November 2012

Gene by environment interactions influencing reading disability and the inattentive symptom dimension of attention deficit/hyperactivity disorder.

J Child Psychol Psychiatry 2012 Mar 2;53(3):243-51. Epub 2011 Sep 2.

Department of Psychology, University of Denver, Denver, CO 80208-0001, USA.

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1111/j.1469-7610.2011.02452.xDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3235245PMC
March 2012

Dynamic and static assessment of phonological awareness in preschool: a behavior-genetic study.

J Learn Disabil 2011 Jul-Aug;44(4):322-9. Epub 2011 May 12.

University of New England, Armidale, Australia.

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1177/0022219411407862DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3158276PMC
February 2012

DeFries-Fulker analysis of longitudinal reading performance data from twin pairs ascertained for reading difficulties and from their nontwin siblings.

Behav Genet 2011 Sep 23;41(5):660-7. Epub 2011 Jan 23.

Institute for Behavioral Genetics, University of Colorado, 447 UCB, Boulder, CO 80309, USA.

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1007/s10519-011-9445-6DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3085049PMC
September 2011

A family based association study of DRD4, DAT1, and 5HTT and continuous traits of attention-deficit hyperactivity disorder.

Behav Genet 2011 Jan 5;41(1):165-74. Epub 2011 Jan 5.

Department of Psychiatry and Human Behavior, Brown University, Box G-S121-4, Providence, RI 02912, USA.

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1007/s10519-010-9437-yDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3674022PMC
January 2011

Etiologies and molecular mechanisms of communication disorders.

J Dev Behav Pediatr 2010 Sep;31(7):555-63

Department of Pediatrics and Munroe Meyer Institute for Genetics and Rehabilitation, University of Nebraska Medical Center, Omaha, NE 68198-5960, USA.

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1097/DBP.0b013e3181ee3d9eDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2943674PMC
September 2010

Does classroom separation affect twins' reading ability in the early years of school?

Twin Res Hum Genet 2009 Oct;12(5):455-61

School of Behavioural, Cognitive and Social Sciences, University of New England, Armidale, Australia.

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1375/twin.12.5.455DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3915871PMC
October 2009

Gender ratios for reading difficulties.

Dyslexia 2009 Aug;15(3):239-42

Institute for Behavioral Genetics, University of Colorado, Boulder, CO, USA.

View Article

Download full-text PDF

Source
http://doi.wiley.com/10.1002/dys.389
Publisher Site
http://dx.doi.org/10.1002/dys.389DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2739722PMC
August 2009

Parental education moderates genetic influences on reading disability.

Psychol Sci 2008 Nov;19(11):1124-30

Department of Psychology, University of Colorado at Boulder, Boulder, CO 80309, USA.

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1111/j.1467-9280.2008.02213.xDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2605635PMC
November 2008

Colorado longitudinal twin study of reading disability.

Ann Dyslexia 2007 Dec 4;57(2):139-60. Epub 2007 Dec 4.

Institute for Behavioral Genetics, University of Colorado, 447 UCB, Boulder, CO 80309, USA.

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1007/s11881-007-0009-7DOI Listing
December 2007

Understanding comorbidity: a twin study of reading disability and attention-deficit/hyperactivity disorder.

Am J Med Genet B Neuropsychiatr Genet 2007 Sep;144B(6):709-14

University of Colorado at Boulder, Boulder, Colorado 80309, USA.

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1002/ajmg.b.30310DOI Listing
September 2007

Genetic and environmental influences on word recognition and spelling deficits as a function of age.

Behav Genet 2007 May 8;37(3):477-86. Epub 2007 Mar 8.

Department of Psychology, 345 UCB, University of Colorado at Boulder, Boulder, CO 80309, USA.

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1007/s10519-007-9145-4DOI Listing
May 2007

Genes, environment, and dyslexia. The 2005 Norman Geschwind Memorial Lecture.

Authors:
Richard K Olson

Ann Dyslexia 2006 Dec;56(2):205-38

Department of Psychology, University of Colorado, UCB 345, Boulder, CO 80309, USA.

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1007/s11881-006-0010-6DOI Listing
December 2006

Processing speed deficits in attention deficit/hyperactivity disorder and reading disability.

J Abnorm Child Psychol 2006 Oct;34(5):585-602

Department of Psychology, University of Denver, Denver, Colorado, USA.

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1007/s10802-006-9037-8DOI Listing
October 2006

TDT-association analysis of EKN1 and dyslexia in a Colorado twin cohort.

Hum Genet 2005 Oct 28;118(1):87-90. Epub 2005 Oct 28.

Department of Pediatrics, Yale Child Health Research Center, Yale University School of Medicine, 464 Congress Avenue, New Haven, CT 06520-8081, USA.

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1007/s00439-005-0017-9DOI Listing
October 2005

Refinement of the 6p21.3 quantitative trait locus influencing dyslexia: linkage and association analyses.

Hum Genet 2004 Jul 11;115(2):128-38. Epub 2004 May 11.

Center for Human Molecular Genetics, Munroe Meyer Institute, University of Nebraska Medical Center, NE Medical Center MMI Rm. 3085, Omaha, NE 68198-5455, USA.

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1007/s00439-004-1126-6DOI Listing
July 2004

Causal models of reading disability: a twin study.

Twin Res 2004 Jun;7(3):275-83

Institute for Behavioral Genetics, University of Colorado, Boulder 80309-0447, USA.

View Article

Download full-text PDF

Source
June 2004

Genetic and environmental influences on individual differences in printed word recognition.

J Exp Child Psychol 2003 Feb;84(2):97-123

Wellcome Trust Centre for Human Genetics, University of Oxford, Roosevelt Drive, Oxford OX3 7BN, UK.

View Article

Download full-text PDF

Source
February 2003

Dyslexia: nature and nurture.

Authors:
Richard K Olson

Dyslexia 2002 Jul-Sep;8(3):143-59

Department of Psychology, University of Colorado, Boulder 80309, USA.

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1002/dys.228DOI Listing
October 2002

Differential genetic etiology of reading component processes as a function of IQ.

Behav Genet 2002 May;32(3):181-98

Department of Psychiatry, Washington University School of Medicine, St. Louis, Missouri 63108, USA.

View Article

Download full-text PDF

Source
May 2002

Quantitative trait locus for reading disability on chromosome 6p is pleiotropic for attention-deficit/hyperactivity disorder.

Am J Med Genet 2002 Apr;114(3):260-8

Institute for Behavioral Genetics, University of Colorado, Boulder, Colorado 80309, USA.

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1002/ajmg.10205DOI Listing
April 2002

Effects of canopy components on throughfall chemistry: An experimental analysis.

Oecologia 1984 Aug;63(3):320-330

Department of Biological Sciences, Dartmouth College, 03755, Hanover, NH, USA.

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1007/BF00390660DOI Listing
August 1984

Nutrient uptake by a diverse spring ephemeral community.

Oecologia 1980 Jan;47(1):96-98

Department of Biology, Indiana University, 47405, Bloomington, Indiana, USA.

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1007/BF00541781DOI Listing
January 1980