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Self-directed speech and self-regulation in childhood neurodevelopmental disorders: Current findings and future directions

Published online by Cambridge University Press:  01 February 2019

Aisling Mulvihill Open the ORCID record for Aisling Mulvihill [Opens in a new window] ,
Annemaree Carroll ,
Paul E. Dux Open the ORCID record for Paul E. Dux [Opens in a new window]  and
Natasha Matthews
Aisling Mulvihill*
Affiliation:
School of Education, The University of Queensland, Brisbane, Australia
Annemaree Carroll
Affiliation:
School of Education, The University of Queensland, Brisbane, Australia
Paul E. Dux
Affiliation:
School of Psychology, The University of Queensland, Brisbane, Australia
Natasha Matthews
Affiliation:
School of Psychology, The University of Queensland, Brisbane, Australia
*
Author for correspondence: Aisling Mulvihill, School of Education, The University of Queensland, Social Sciences Building No. 24, Campbell Rd., St. Lucia, Brisbane, QLD 4072, Australia; E-mail: a.mulvihill@uq.edu.au.
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Abstract

Self-directed speech is considered an important developmental achievement as a self-regulatory mediator of thinking and behavior. Atypical self-directed speech is often implicated in the self-regulatory challenges characteristic of children with neurodevelopmental disorders. A growing body of evidence provides snapshots across age-levels and diagnoses, often presenting conflicting results. This systematic review is undertaken to impose clarity on the nature, extent, and self-regulatory implications of self-directed speech interruption in children with developmental language disorder (DLD), autism spectrum disorder (ASD), and attention deficit hyperactivity disorder (ADHD).

A rigorous search process of relevant databases (i.e., PsychInfo, PubMed, CINAHL, ERIC) uncovered 19 relevant peer-reviewed articles that investigate self-directed speech in children with neurodevelopmental disorders. Consistent across the research, children with DLD, ASD, and ADHD present with differential development and use of self-directed speech.

In its synthesis of findings, this systematic review clearly explicates the differential ontogenesis of self-directed speech in neurodevelopmental disorders and interprets the self-regulatory implications for children with DLD, ASD, and ADHD. Furthermore, the review spotlights important future research directions to better understand the mechanistic relationship between self-directed speech and self-regulation.

Keywords

ADHDautism spectrum disorderlanguage disorderprivate speechself-directed speech

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Type
Regular Articles
Information
Development and Psychopathology , Volume 32 , Issue 1 , February 2020 , pp. 205 - 217
Copyright
Copyright © Cambridge University Press 2019

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References

Alderson-Day, B., & Fernyhough, C. (2015). Inner speech: Development, cognitive functions, phenomenology, and neurobiology. Psychological Bulletin, 141(5), 931–965. doi:10.1037/bul0000021CrossRefGoogle ScholarPubMed
APA. (2013). Diagnostic and statistical manual of mental disorders: DSM-5 (5th ed.). Washington, DC: American Psychiatric Association.Google Scholar
Aziz, S. A., Fletcher, J., & Bayliss, D. M. (2017). Self-regulatory speech during planning and problem-solving in children with SLI and their typically developing peers. International Journal of Language and Communication Disorders, 53(3), 311–322. doi:10.1111/1460-6984.12273CrossRefGoogle Scholar
Baddeley, A. (1992). Working memory. Science, 255(5044), 556–559.CrossRefGoogle ScholarPubMed
Baddeley, A., & Hitch, G. (1974). Working memory. In Bower, G. H. (Ed.), Psychology of learning and motivation (pp. 47–89). New York: Academic Press.Google Scholar
Barkley, R. A. (1997). Behavioral inhibition, sustained attention, and executive functions: Constructing a unifying theory of ADHD. Psychological Bulletin, 121(1), 65–94. doi:10.1037/0033-2909.121.1.65CrossRefGoogle ScholarPubMed
Barkley, R. A. (2011). Executive functioning and self-regulation: Integration, extended phenotype, and clinical implications. New York: Guilford.Google Scholar
Berk, L. E. (1986). Relationship of elementary school children's private speech to behavioral accompaniment to task, attention, and task performance. Developmental Psychology, 22(5), 671–680. doi:10.1037/0012-1649.22.5.671CrossRefGoogle Scholar
Berk, L. E., & Potts, M. (1991). Development and functional significance of private speech among attention-deficit hyperactivity disordered and normal boys. Journal of Abnormal Child Psychology, 19(3), 357–377. doi:10.1007/BF00911237CrossRefGoogle ScholarPubMed
Beurkens, N. M., Hobson, J. A., & Hobson, R. P. (2013). Autism severity and qualities of parent–child relations. Journal of Autism and Developmental Disorders, 43(1), 168–178. doi:10.1007/s10803-012-1562-4CrossRefGoogle ScholarPubMed
Blair, C., & Diamond, A. (2008). Biological processes in prevention and intervention: The promotion of self-regulation as a means of preventing school failure. Development and Psychopathology, 20(3), 899–911. doi:10.1017/S0954579408000436CrossRefGoogle ScholarPubMed
Casey, B. J., Somerville, L. H., Gotlib, I. H., Ayduk, O., Franklin, N. T., Askren, M. K., … Shoda, Y. (2011). Behavioral and neural correlates of delay of gratification 40 years later. Proceedings of the National Academy of Sciences of the United States of America, 108(36), 14998–15003. doi:10.1073/pnas.1108561108CrossRefGoogle ScholarPubMed
Copeland, A. P. (1979). Types of private speech produced by hyperactive and non-hyperactive boys. Journal of Abnormal Child Psychology, 7(2), 169–177. doi:10.1007/BF00918897CrossRefGoogle Scholar
Corballis, M. C. (2016). The evolution of language: Sharing our mental lives. Journal of Neurolinguistics. doi:10.1016/j.jneuroling.2016.06.003Google Scholar
Corkum, P., Humphries, K., Mullane, J. C., & Theriault, F. (2008). Private speech in children with ADHD and their typically developing peers during problem-solving and inhibition tasks. Contemporary Educational Psychology, 33(1), 97–115. doi:10.1016/j.cedpsych.2006.12.003CrossRefGoogle Scholar
Danforth, J. S., Connor, D. F., & Doerfler, L. A. (2016). The development of comorbid conduct problems in children with ADHD. Journal of Attention Disorders, 20(3), 214–229. doi:10.1177/1087054713517546CrossRefGoogle ScholarPubMed
Diaz, R. M., & Berk, L. E. (1995). A Vygotskian critique of self-instructional training. Development and Psychopathology, 7, 369–392. doi:10.1017/S0954579400006568CrossRefGoogle Scholar
Duncan, R. M., & Cheyne, J. A. (2002). Private speech in young adults: Task difficulty, self-regulation, and psychological predication. Cognitive Development, 16(2002), 889–906. doi:10.1016/S0885-2014(01)00069-7Google Scholar
Dyck, M. J., Piek, J. P., & Patrick, J. (2011). The validity of psychiatric diagnoses: The case of specific developmental disorders. Research in Developmental Disabilities: A Multidisciplinary Journal, 32(6), 2704–2713. doi:10.1016/j.ridd.2011.06.001CrossRefGoogle Scholar
Eric, F. (2009). Epidemiology of pervasive developmental disorders. Pediatric Research, 65(6), 591. doi:10.1203/PDR.0b013e31819e7203Google Scholar
Farrant, B. M., Fletcher, J., & Maybery, M. T. (2006). Specific language impairment, theory of mind, and visual perspective taking: Evidence for simulation theory and the developmental role of language. Child Development, 77(6), 1842–1853. doi:10.1111/j.1467-8624.2006.00977.xCrossRefGoogle ScholarPubMed
Fernyhough, C. (2008). Getting Vygotskian about theory of mind: Mediation, dialogue, and the development of social understanding. Developmental Review, 28(2), 225–262. doi:10.1016/j.dr.2007.03.001CrossRefGoogle Scholar
Fernyhough, C. (2010). Vygotsky, Luria, and the social brain. In Sokol, B., Müller, U., Carpendale, J., Young, A., & Iarocci, G. (Eds.), Self- and social-regulation: Exploring the relations between social interaction, social cognition, and the development of executive functions. New York: Oxford University Press.Google Scholar
Fernyhough, C., & Fradley, E. (2005). Private speech on an executive task: Relations with task difficulty and task performance. Cognitive Development, 20(1), 103–120. doi:10.1016/j.cogdev.2004.11.002CrossRefGoogle Scholar
Fernyhough, C., & Meins, E. (2009). Private speech and theory of mind: Evidence of developing interfunctional relations. In Winsler, A., Fernyhough, C., & Montero, I. (Eds.), Private speech, executive functioning and the development of verbal self-regulation (pp. 95–104). New York, NY: Cambridge University Press.Google Scholar
Finneran, D. A., Francis, A. L., & Leonard, L. B. (2009). Sustained attention in children with specific language impairment. Journal of Speech, Language, and Hearing Research, 52(4), 915–929. doi:10.1044/1092-4388(2009/07-0053)CrossRefGoogle ScholarPubMed
Fujiki, M., Brinton, B., & Clarke, D. (2002). Emotion regulation in children with specific language impairment. Language, Speech and Hearing Services in Schools, 33(2), 102–111. doi:10.1044/0161-1461CrossRefGoogle ScholarPubMed
Furrow, D. (1984). Social and private speech at two years. Child Development, 55(2), 355.CrossRefGoogle Scholar
Geurts, H. M., & Embrechts, M. (2008). Language profiles in ASD, SLI, and ADHD. Journal of Autism and Developmental Disorders, 38(10), 1931. doi:10.1007/s10803-008-0587-1CrossRefGoogle ScholarPubMed
Hill, E. L. (2004). Executive dysfunction in autism. Trends in Cognitive Sciences, 8(1), 26–32. doi:10.1016/j.tics.2003.11.003CrossRefGoogle ScholarPubMed
Hitch, G., Woodin, M., & Baker, S. (1989). Visual and phonological components of working memory in children. Memory & Cognition, 17(2), 175–185. doi:10.3758/BF03197067CrossRefGoogle ScholarPubMed
Holland, L., & Low, J. (2010). Do children with autism use inner speech and visuospatial resources for the service of executive control? Evidence from suppression in dual tasks. British Journal of Developmental Psychology, 28(2), 369–391. doi:10.1348/026151009X424088CrossRefGoogle ScholarPubMed
Kopecky, H., Chang, H. T., Klorman, R., Thatcher, J. E., & Borgstedt, A. D. (2005). Performance and private speech of children with attention-deficit/hyperactivity disorder while taking the Tower of Hanoi test: Effects of depth of search, diagnostic subtype, and methylphenidate. Journal of Abnormal Child Psychology, 33(5), 625–638. doi:10.1007/s10802-005-6742-7CrossRefGoogle Scholar
Kray, J., Eber, J., & Karbach, J. (2008). Verbal self-instructions in task switching: A compensatory tool for action-control deficits in childhood and old age? Developmental Science, 11(2), 223–236. doi:10.1111/j.1467-7687.2008.00673.xCrossRefGoogle ScholarPubMed
Kuvalja, M., Verma, M., & Whitebread, D. (2014). Patterns of co-occurring non-verbal behaviour and self-directed speech: A comparison of three methodological approaches. Metacognition and Learning, 9(2), 87–111. doi:10.1007/s11409-013-9106-7CrossRefGoogle Scholar
La Rocque, B., & Winsler, A. (2011, March). Parent-child interaction, scaffolding, private speech, and executive functioning among children with ADHD or high functioning autism. In Finestone, D. & Lidstone, J. (Chairs), “ If I say so”: Current trends in research on private and inner speech. Symposium presented at the biennial meeting of the Society for Research in Child Development. Montreal, Canada.Google Scholar
Lawrence, V., Houghton, S., Tannock, R., Douglas, G., Durkin, K., & Whiting, K. (2002). ADHD outside the laboratory: Boys' executive function performance on tasks in videogame play and on a visit to the zoo. Journal of Abnormal Child Psychology, 30(5), 447. doi:10.1023/A:1019812829706CrossRefGoogle Scholar
Lidstone, J. S. M., Fernyhough, C., Meins, E., & Whitehouse, A. (2009). Brief report: Inner speech impairment in children with autism is associated with greater nonverbal than verbal skills. Journal of Autism and Developmental Disorders, 39(8), 1222–1225. doi:10.1007/s10803-009-0731-6CrossRefGoogle ScholarPubMed
Lidstone, J. S. M., Meins, E., & Fernyhough, C. (2010). The roles of private speech and inner speech in planning during middle childhood: Evidence from a dual task paradigm. Journal of Experimental Child Psychology, 107(4), 438–451. doi:10.1016/j.jecp.2010.06.002CrossRefGoogle ScholarPubMed
Lidstone, J. S. M., Meins, E., & Fernyhough, C. (2012). Verbal mediation of cognition in children with specific language impairment. Development and Psychopathology, 24(2), 651. doi:10.1017/S0954579412000223CrossRefGoogle ScholarPubMed
Lord, C., & Jones, R. M. (2012). Annual Research Review: Re-thinking the classification of autism spectrum disorders. Journal of Child Psychology and Psychiatry, 53(5), 490–509. doi:10.1111/j.1469-7610.2012.02547.xCrossRefGoogle ScholarPubMed
Luinge, M. R., Post, W. J., Wit, H. P., & Goorhuis-Brouwer, S. M. (2006). The ordering of milestones in language development for children from 1 to 6 years of age. Journal of Speech, Language, and Hearing Research, 49(5), 923–940.CrossRefGoogle Scholar
Luria, A. R. (1959). The directive function of speech in development and dissolution. Word, 15(2), 341–352.CrossRefGoogle Scholar
Magnusson, M. S. (2000). Discovering hidden time patterns in behavior: T-patterns and their detection. Behavior, Research Methods, Instruments and Computers: A Journal of the Psychonomic Society, Inc, 32(1), 93–110CrossRefGoogle ScholarPubMed
Manfra, L. (2006). The effects of speech awareness and speech instructions on young children's self-talk and cognitive self-regulation during a dimensional change counting task (Doctoral thesis). Retrieved from ProQuest Dissertations Publishing (UMI No. 3221385).Google Scholar
Manfra, L. (2009). Preschool children's speech awareness and theory of speech. In Winsler, A., Fernyhough, C., & Montero, I. (Eds.), Private speech, executive functioning, and the development of verbal self-regulation. New York, NY: Cambridge University Press.Google Scholar
Manfra, L., Davis, K. D., Ducenne, L., & Winsler, A. (2014). Preschoolers’ motor and verbal self-control strategies during a resistance-to-temptation task. The Journal of Genetic Psychology, 175(4), 332–345. doi:10.1080/00221325.2014.917067CrossRefGoogle ScholarPubMed
Manfra, L., & Winsler, A. (2006). Preschool children's awareness of private speech. International Journal of Behavioral Development, 30(6), 537–549.CrossRefGoogle Scholar
McDevitt, T. M. (2013). Child development and education. Frenchs Forest, N. S. W.: Pearson Australia.Google Scholar
Müller, U., Jacques, S., Brocki, K., & Zelazo, P. D. (2009). The executive functions of language in preschool children. In Winsler, A., Fernyhough, C., & Montero, I. (Eds.), Private speech, executive functioning and the development of verbal self-regulation (pp. 53–68). New York, NY: Cambridge University Press.Google Scholar
Müller, U., Zelazo, P. D., Hood, S., Leone, T., & Rohrer, L. (2004). Interference control in a new rule use task: Age-related changes, labeling, and attention. Child Development, 75(5), 1594–1609. doi:10.1111/j.1467-8624.2004.00759.xCrossRefGoogle Scholar
Ozonoff, S. (2015). Editorial: Early detection of mental health and neurodevelopmental disorders: The ethical challenges of a field in its infancy. Journal of Child Psychology and Psychiatry, 56(9), 933–935. doi:10.1111/jcpp.12452CrossRefGoogle ScholarPubMed
Pace, R., Pluye, P., Bartlett, G., Macaulay, A. C., Salsberg, J., Jagosh, J., & Seller, R. (2011). Testing the reliability and efficiency of the pilot Mixed Methods Appraisal Tool (MMAT) for systematic mixed studies review. International Journal of Nursing Studies. doi:10.1016/j.ijnurstu.2011.07.002Google ScholarPubMed
Piaget, J. (1959). The language and thought of the child. In Gabain, M. & Gabain, R. (Trans. 3rd ed.). London: Routledge & Kegan Paul.Google Scholar
Plato, , & McDowell, J. H. (1973). Theaetetus / translated with notes by John McDowell. Oxford: Clarendon Press.Google Scholar
Reck, S. G., Hund, A. M., & Landau, S. (2010). Memory for object locations in boys with and without ADHD. Journal of Attention Disorders, 13(5), 505–515. doi:10.1177/1087054708329970CrossRefGoogle ScholarPubMed
Russell-Smith, S., Comerford, B., Maybery, M., & Whitehouse, A. (2014). Brief report: Further evidence for a link between inner speech limitations and executive function in high-functioning children with autism spectrum disorders. Journal of Autism and Developmental Disorders, 44(5), 1236–1243. doi:10.1007/s10803-013-1975-8CrossRefGoogle Scholar
Russell, J., Jarrold, C., & Hood, B. (1999). Two intact executive capacities in children with autism: Implications for the core executive dysfunctions in the disorder. Journal of Autism and Developmental Disorders, 29(2), 103–112. doi:10.1023/A:1023084425406CrossRefGoogle ScholarPubMed
Schaerlaekens, A., & Swillen, A. (1997). Crib speech in autistic and psychotic children: Case studies of form, content and function. First Language, 17(3), 303–319.CrossRefGoogle Scholar
Sibley, M. H., Pelham, W. E., Molina, B. S. G., Gnagy, E. M., Waschbusch, D. A., Biswas, A., … Karch, K. M. (2011). The delinquency outcomes of boys with ADHD with and without comorbidity. Journal of Abnormal Child Psychology, 39(1), 21–32. doi:10.1007/s10802-010-9443-9CrossRefGoogle ScholarPubMed
Steele, S., Joseph, R. M., & Tager-Flusberg, H. (2003). Brief report: Developmental change in theory of mind abilities in children with autism. Journal of Autism and Developmental Disorders, 33(4), 461–467. doi:10.1023/A:1025075115100CrossRefGoogle ScholarPubMed
Storebø, O. J., Krogh, H. B., Ramstad, E., Moreira-Maia, C. R., Holmskov, M., Skoog, M., … Gluud, C. (2015). Methylphenidate for attention-deficit/hyperactivity disorder in children and adolescents: Cochrane systematic review with meta-analyses and trial sequential analyses of randomised clinical trials. BMJ, 351, 1–14. doi:10.1136/bmj.h5203Google ScholarPubMed
Sturn, A., & Johnston, J. (1999). Thinking out loud: An exploration of problem-solving language in preschoolers with and without language impairment. International Journal of Language & Communication Disorders, 34(1), 1–15.CrossRefGoogle ScholarPubMed
Tomblin, J. B., Records, N. L., Buckwalter, P., Zhang, X., Smith, E., & O'Brien, M. (1997). Prevalence of specific language impairment in kindergarten children. Journal of Speech, Language, and Hearing Research, 40(6), 1245.CrossRefGoogle ScholarPubMed
Vygotsky, L. (1934/1962). Thought and language. Cambridge, MA: MIT Press.Google Scholar
Walsh, I. P., Scullion, M., Burns, S., MacEvilly, D., & Brosnan, G. (2014). Identifying demographic and language profiles of children with a primary diagnosis of attention deficit hyperactivity disorder. Emotional and Behavioural Difficulties, 19(1), 59–70. doi:10.1080/13632752.2013.854963CrossRefGoogle Scholar
Wehmeier, P. M., Schacht, A., & Barkley, R. A. (2010). Social and emotional impairment in children and adolescents with ADHD and the impact on quality of life. Journal of Adolescent Health, 46(3), 209–217. doi:10.1016/j.jadohealth.2009.09.009CrossRefGoogle ScholarPubMed
Whitebread, D., Almeqdad, Q., Bryce, D., Demetriiou, D., Grau, V., & Sangster, C. (2010). Metacognition in young children: Current methodological and theoretical developments. In Efklides, A. & Misailidi, P. (Eds.), Trends and prospects in metacognition research. Boston, MA: Springer.Google Scholar
Whitehouse, A. J. O., Maybery, M. T., & Durkin, K. (2006). Inner speech impairments in autism. Journal of Child Psychology and Psychiatry, 47(8), 857–865. doi:10.1111/j.1469-7610.2006.01624.xCrossRefGoogle ScholarPubMed
Willcutt, E. (2012). The prevalence of DSM-IV Attention-Deficit/Hyperactivity Disorder: A meta-analytic review. The Journal of the American Society for Experimental NeuroTherapeutics, 9(3), 490–499. doi:10.1007/s13311-012-0135-8CrossRefGoogle ScholarPubMed
Williams, D. M., Bowler, D. M., & Jarrold, C. (2012). Inner speech is used to mediate short-term memory, but not planning, among intellectually high-functioning adults with autism spectrum disorder. Development and Psychopathology, 24(1), 225–239. doi:10.1017/S0954579411000794CrossRefGoogle Scholar
Williams, D., Happé, F., & Jarrold, C. (2008). Intact inner speech use in autism spectrum disorder: Evidence from a short-term memory task. Journal of Child Psychology and Psychiatry, 49(1), 51–58. doi:10.1111/j.1469-7610.2007.01836.xCrossRefGoogle ScholarPubMed
Williams, D., & Jarrold, C. (2010). Brief report: Predicting inner speech use amongst children with autism spectrum disorder (ASD): The roles of verbal ability and cognitive profile. Journal of Autism and Developmental Disorders, 40(7), 907–913. doi:10.1007/s10803-010-0936-8CrossRefGoogle ScholarPubMed
Windsor, J., Kohnert, K., Loxtercamp, A. L., & Kan, P.-F. (2008). Performance on nonlinguistic visual tasks by children with language impairment. Applied Psycholinguistics, 29(2), 237–268. doi:10.1017/S0142716407080113CrossRefGoogle Scholar
Winsler, A. (1998). Parent-child interaction and private speech in boys with ADHD. Applied Developmental Science, 2(1), 17–39. doi:10.1207/s1532480xads0201_2CrossRefGoogle Scholar
Winsler, A. (2009). Still talking to ourselves after all these years: A review of current research on private speech. In Winsler, A., Fernyhough, C., & Montero, I. (Eds.), Private speech, executive functioning, and the development of verbal self-regulation (pp. 3–41). New York, NY: Cambridge University Press.Google Scholar
Winsler, A., Abar, B., Feder, M. A., Schunn, C. D., & Rubio, D. A. (2007). Private speech and executive functioning among high-functioning children with autistic spectrum disorders. Journal of Autism and Developmental Disorders, 37(9), 1617–1635. doi:10.1007/s10803-006-0294-8CrossRefGoogle ScholarPubMed
Winsler, A., Carlton, M. P., & Barry, M. J. (2000). Age-related changes in preschool children's systematic use of private speech in a natural setting. Journal of Child Language, 27(3), 665–687. doi:10.1017/S0305000900004402CrossRefGoogle Scholar
Winsler, A., Diaz, R. M., Atencio, D. J., McCarthy, E. M., & Chabay, L. A. (2000). Verbal self-regulation over time in preschool children at risk for attention and behavior problems. Journal of Child Psychology and Psychiatry, 41(7), 875–886. doi:10.1111/1469-7610.00675CrossRefGoogle ScholarPubMed
Winsler, A., Diaz, R. M., & Montero, I. (1997). The role of private speech in the transition from collaborative to independent task performance in young children. Early Childhood Research Quarterly, 12(1), 59–79. doi:10.1016/S0885-2006(97)90043-0CrossRefGoogle Scholar
Winsler, A., Fernyhough, C., McClaren, E. M., & Way, E. (2005). Private Speech Coding Manual. Unpublished manuscript. Fairfax, VA: George Mason University.Google Scholar
Winsler, A., Manfra, L., & Diaz, R. M. (2007). “Should I let them talk?”: Private speech and task performance among preschool children with and without behavior problems. Early Childhood Research Quarterly, 22(2), 215–231. doi:10.1016/j.ecresq.2007.01.001CrossRefGoogle Scholar
Winsler, A., & Naglieri, J. (2003). Overt and covert verbal problem-solving strategies: Developmental trends in use, awareness, and relations with task performance in children aged 5 to 17. Child Development, 74(3), 659–678. doi:10.1111/1467-8624.00561CrossRefGoogle ScholarPubMed
Winsler, A., Naglieri, J., & Manfra, L. (2006). Children's search strategies and accompanying verbal and motor strategic behavior: Developmental trends and relations with task performance among children age 5 to 17. Cognitive Development, 21(3), 232–248. doi:10.1016/j.cogdev.2006.03.003CrossRefGoogle Scholar
Wright, J., Gaughan, D., & McClanahan, R. (1978). The KRISP: A normative evaluation. University of Kansas: The Kansas Center for Research in Early Childhood Education.Google Scholar
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