0000000000345468

AUTHOR

Jari Westerholm

showing 17 related works from this author

Do fatty acids help in overcoming reading difficulties? A double-blind, placebo-controlled study of the effects of eicosapentaenoic acid and carnosin…

2008

Background  There are claims that dietary supplementation of unsaturated fatty acids could help children with dyslexia to overcome their reading problems. However, these claims have not yet been empirically tested. Methods  This study was designed to test whether dietary supplementation was superior to placebo in treating reading, spelling or other reading-related skills of children with dyslexia. The experimental group (eicosapentaenoic acid, EPA, n = 30) ate dietary supplements and the control group (placebo, n = 31) placebos during the 90-day treatment period. The supplements contained omega-3 fatty acid (ethyl-EPA, 500 mg/day) and carnosine (400 mg/day). The groups were matched for read…

Malemedia_common.quotation_subjectPlacebo-controlled studyPlaceboDevelopmental psychologyDyslexiaDouble-Blind MethodReading (process)Developmental and Educational PsychologymedicineHumansChildFinlandmedia_commonchemistry.chemical_classificationCarnosinePublic Health Environmental and Occupational HealthDyslexiaFatty acidmedicine.diseaseEicosapentaenoic acidCombined Modality TherapySpellingTreatment OutcomechemistryEicosapentaenoic AcidCase-Control StudiesPediatrics Perinatology and Child HealthLearning disabilityDietary SupplementsFemalemedicine.symptomPsychologyClinical psychologyChild: care, health and development
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Literacy programs efficacy for developing children’s early reading skills in familiar language in Zambia

2018

This study investigated the comparative efficacy of a phonics-based reading program and a language experience approach based literacy program to develop reading skills among Zambian early childhood school learners. The learners (n = 1 986; Grade 2 level; females = 50.1%) took either the phonics-based reading program (n = 1 593) or the alternative language experience approach based program (n = 393). They were all assessed for reading skills utilising the Early Grade Reading Assessment test (EGRA) in four languages (Cinyanja, Icibemba, Kiikaonde, and Silozi). Results suggest that learners in phonics-based literacy program were significantly better in letter-sound knowledge in all the four la…

515 Psychologymedia_common.quotation_subjectEarly Grade Reading Assessment (EGRA)Bantu languages050109 social psychologyBantu languagesta6121Phonicsfamiliar language050105 experimental psychologyLiteracyReading (process)bantukieletMathematics education6121 Languages0501 psychology and cognitive sciencesta516Early childhoodtransparent orthographyGeneral Psychologyta515media_commonFOUNDATION4. Education05 social scienceslukeminen (toiminta)Test (assessment)ORTHOGRAPHIESReading comprehensionlukutaito516 Educational sciencesreading skillsPsychologyLanguage Experience Approachlanguage of instructionJournal of Psychology in Africa
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Continuity From Prelinguistic Communication to Later Language Ability: A Follow-Up Study From Infancy to Early School Age.

2016

Purpose This longitudinal study examined the development of prelinguistic skills and the continuity of communication and language from the prelinguistic stage to school age. Method Prelinguistic communication of 427 Finnish children was followed repeatedly from 6 to 18 months of age ( n = 203–322 at ages 6, 9, 12, 15, and 18 months), and its associations with language ability at ages 2;0 ( n = 104), 3;0 ( n = 112), 4;7 ( n = 253), 5;3 ( n = 102), and 7;9 ( n = 236) were examined using latent growth curve modeling. Results Prelinguistic development across several skills emerged as a rather stable intraindividual characteristic during the first 2 years of life. Continuity from prelinguistic …

MaleLinguistics and LanguageLongitudinal studyPredictor variablesLanguage Development050105 experimental psychologyLanguage and LinguisticsDevelopmental psychologyprelinguistic communicationSpeech and Hearingprelinguistic skillsHumans0501 psychology and cognitive sciencesdevelopmentLanguage abilitySchool age childModels Statistical05 social sciencesFollow up studiesInfantLanguage acquisitionLanguage developmentChild PreschoolSchool environmentFemalePsychology050104 developmental & child psychologyFollow-Up StudiesJournal of speech, language, and hearing research : JSLHR
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The effect of using a mobile literacy game to improve literacy levels of grade one students in Zambian schools

2014

This intervention study was conducted to document conditions under which a computer based literacy game (GraphoGame™) could enhance literacy skills of first grade students in an African city. The participants were first grade students from Government schools (N = 573). These students were randomly sampled into control (N = 314) and various intervention groups (N = 259). GraphoGame™ was administered on cellphones to students at their schools under supervision. Each student in the study was assessed using a battery of locally developed cognitive tests that measured emergent literacy skills (Orthography test), decoding competence (Spelling test), vocabulary (Picture Vocabulary Test—PVT) and ar…

VocabularyComputer sciencemedia_common.quotation_subjectMathematics educationAchievement testCompetence (human resources)LiteracySpellingOrthographyVocabulary developmentEducationmedia_commonCognitive testEducational Technology Research and Development
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Audiovisual speech perception in children with developmental language disorder in degraded listening conditions.

2013

Purpose The effect of the signal-to-noise ratio (SNR) on the perception of audiovisual speech in children with and without developmental language disorder (DLD) was investigated by varying the noise level and the sound intensity of acoustic speech. The main hypotheses were that the McGurk effect (in which incongruent visual speech alters the auditory speech percept) would be weaker for children with DLD than for controls and that it would get stronger with decreasing SNR in both groups. Method The participants were 8-year-old children with DLD and a sample of children with normal language development. In the McGurk stimuli, the consonant uttered by the voice differed from that articulated …

Auditory perceptionMaleLinguistics and LanguageVisual perceptionSpeech perceptionmedia_common.quotation_subjectLoudness PerceptionLipreadingSpecific language impairmentSignal-To-Noise Ratio050105 experimental psychologyLanguage and Linguistics03 medical and health sciencesSpeech and Hearing0302 clinical medicinePhoneticsPerceptionmedicineHumans0501 psychology and cognitive sciencesLanguage Development DisordersChildmedia_commonCued speechMotor theory of speech perceptionLanguage Tests05 social sciencesmedicine.diseaseAcoustic StimulationSpeech Discrimination TestsSpeech PerceptionMcGurk effectFemalePsychologyNoise030217 neurology & neurosurgeryChild LanguagePhotic StimulationCognitive psychologyJournal of speech, language, and hearing research : JSLHR
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Edistääkö tavuharjoittelu lukemisen sujuvuutta? : tietokonepohjainen harjoittelukokeilu tois- ja kolmasluokkalaisilla heikoilla lukijoilla

2016

Tämä artikkeli perustuu Heikkilän, Aron, Närhin, Westerholmin ja Ahosen artikkeliin Does the training in syllable recognition improve reading speed? A computer-based trial with poor readers from second and third grade, joka julkaistiin Scientific Studies of Reading -lehden numerossa 17(6) vuonna 2013. Tutkimuksessa selvitettiin, voidaanko tietokonepohjaisella tavujen toistavaan tunnistamiseen perustuvalla menetelmällä vaikuttaa heikkojen lukijoiden lukemissujuvuuteen. Lisäksi selvitettiin, vaikuttavatko lukemisen alkutaso ja nopean nimeämisen taito harjoittelun tehokkuuteen. Tutkimukseen osallistui 150 tois- ja kolmasluokkalaista heikkoa lukijaa, jotka jaettiin satunnaisesti kontrolliryhmää…

oppimisvaikeudettietokoneavusteinen oppiminensujuvuusalakoululaisetharjoittelutavuharjoittelulukihäiriöttavutuslukeminen
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Does training in syllable recognition improve reading speed? A computer-based trial with poor readers from second and third grade.

2013

Repeated reading of infrequent syllables has been shown to increase reading speed at the word level in a transparent orthography. This study confirms these results with a computer-based training method and extends them by comparing the training effects of short syllables and long frequent and infrequent syllables, controlling for rapid automatized naming. Our results, based on a sample of 150 poor readers of Finnish, showed clear gains in reading speed regarding all trained syllables, but a transfer effect to the word level was evident only in the case of long infrequent syllables. Rapid automatized naming was associated with initial reading speed, but not with the training effect. peerRevi…

Computer scienceSpeech recognitionmedia_common.quotation_subjectEducationrapid automatized namingcomputerized trainingreading speedReading (process)nopea nimeäminenFinno-Ugric languageslukemisvaikeusta516syllablesRapid automatized namingta515interventiomedia_commontavutreading disabilityTraining (meteorology)Training effectreading fluencyTransfer of trainingPsychology (miscellaneous)lukemisen sujuvuusSyllableOrthography
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Reliability and validity of the Finnish version of the motor observation questionnaire for teachers.

2017

Objectives: Observational screening instruments are often used as an effective, economical first step in the identification of children with Developmental Coordination Disorder (DCD). The aim was to investigate the psychometric properties of the Finnish version of the Motor Observation Questionnaire for Teachers (MOQ-T-FI).Methods: The psychometric properties were tested using two separate samples (S1: age range 6-12, M 9y 5mo, females 101, males 92; S2: age range 6-9, M 7y 7mo, females 404, males 446). Teachers completed the MOQ-T-Fl in both samples, and in sample 2 teachers' ratings were compared to student's performance on the Movement Assessment Battery for Children-Second Edition (MABC…

Male030506 rehabilitationdevelopmental coordination disorderCHILDRENpsychometric propertiesSCREENING INSTRUMENTDevelopmental psychology0302 clinical medicineRATINGSBIFACTORDEFICITSSurveys and QuestionnairesADOLESCENTSDCDta516Orthopedics and Sports Medicineta315ChildMOQ-TReliability (statistics)FinlandGeneral Medicinemotor observation questionnaire for teachersReliabilityMotor Skills DisordersPsychometric propertiesMotor SkillsScreeningFemale0305 other medical scienceMotor learningPsychologyPredictive validityPsychometricsMovementeducationConcurrent validityBiophysicsExperimental and Cognitive PsychologySensitivity and SpecificityValidity03 medical and health sciencesCronbach's alphaDEVELOPMENTAL COORDINATION DISORDERHumansreliabilityReceiver operating characteristicscreeningConstruct validityReproducibility of ResultsPHYSICAL-ACTIVITYROC CurvevaliditeettiCROSS-CULTURAL ADAPTATIONObservational studySchool TeachersMEDIATEFactor Analysis Statistical030217 neurology & neurosurgeryHuman movement science
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A mobile game as a support tool for children with severe difficulties in reading and spelling

2020

We used a randomized controlled trial to investigate if a mobile game, GraphoLearn (GL), could effectively support the learning of first graders (N = 70), who have severe difficulties in reading and spelling. We studied the effects of two versions of the game: GL Reading, which focused on training letter-sound correspondence and word reading; and GL Spelling, which included additional training in phonological skills and spelling. During the spring of first grade, the children trained with tablet computers which they could carry with them during the six-week intervention. The average exposure time to training was 5 hr 44 min. The results revealed no differences in the development of reading …

GraphoLearnFLUENCYmedia_common.quotation_subjectPHONEMIC AWARENESSINSTRUCTIONGame based learning050105 experimental psychologyomatoimisuuslukeminenEducationmobile learningFluencyoppimisvaikeudetEARLY LITERACYmobiilioppiminenreadingIntervention (counseling)Reading (process)0501 psychology and cognitive sciencesserious gamemedia_commonmobiilipelitSelf-efficacyluetun ymmärtäminenOUTCOMESPhonemic awareness4. EducationDISABILITY05 social sciences050301 educationSELF-EFFICACYSpellingPOOR READERSComputer Science ApplicationslukutaitokirjoitustaitoSKILLS516 Educational sciencesPsychologylukihäiriöt0503 educationMobile deviceself-efficacyINTERVENTIONCognitive psychology
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Self-regulatory efficacy and sources of efficacy in elementary school pupils: Self-regulatory experiences in a population sample and pupils with atte…

2019

In this study, we examined self-regulatory efficacy and sources of self-efficacy (mastery experiences, vicarious experiences, social persuasion and physiological/emotional states) and the relationships between self-efficacy and its sources among elementary school pupils. Two groups were compared: a population sample (PS, N = 1284) and pupils with difficulties in attention and executive functions (AED, N = 61). Data gathered from self-report questionnaires indicated that pupils in the PS group had more positive efficacy beliefs and mastery experiences and fewer negative physiological/emotional states than the AED group. Analyses showed strong connections between sources and self-regulatory e…

toiminnanohjaus (psykologia)Social PsychologyPopulation samplemedia_common.quotation_subjectitsesääntelyomatoimisuusEducationDevelopmental psychologyDevelopmental and Educational PsychologyADHDta5160501 psychology and cognitive sciencesFunction (engineering)ta515media_common4. Education05 social sciencesalakoululaiset050301 educationSocial persuasionVariance (accounting)Executive functionsself-regulatory efficacyattention deficitsexecutive function deficitssources of self-efficacyPsychology0503 education050104 developmental & child psychologyLearning and Individual Differences
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The Predictors of Literacy Skills among Monolingual and Bilingual Finnish–Swedish Children During First Grade

2021

The aim of the study was to examine which predictor variables are related to literacy skills among monolingual Swedish (n = 269) and bilingual Finnish–Swedish (n = 229) children at the first grade in the Swedish-speaking schools in Finland. The participants were assessed in phonological awareness, letter knowledge, rapid automatized naming (RAN), word recognition, reading fluency, and spelling. The results showed that RAN was the most significant predictor of reading and spelling skills in both language groups, and monolingual children performed significantly better in RAN. Moreover, letter knowledge predicted reading and spelling skills in both groups. However, no significant differences b…

tospråklighetLiteracy skillmedia_common.quotation_subjectlapset (ikäryhmät)literacy:Humaniora: 000 [VDP]äidinkieliPredictor variablesoikeinkirjoituslukeminenlesing og stavingSpellingyksikielisyysfonologinen tietoisuusEducationDevelopmental psychologylesevitenskapReading (process)lukutaitoennustettavuuskaksikielisyyskaksikieliset koulutlukihäiriötPsychologymedia_commonScandinavian Journal of Educational Research
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The Nature of and Factors Related to Reading Difficulties Among Adolescents in a Transparent Orthography

2013

We examined the nature of and factors related to adolescents’ reading difficulties in a highly transparent orthography. We compared word, pseudoword, and text reading speed and accuracy, rapid naming (RAN) and phonological processing between poor readers (n = 80) and normally developing readers (n = 189). Reading problems were manifested in reading speed and in timed pseudoword reading accuracy. RAN predicted speed, and phonological processing predicted accuracy of reading in both groups. Among poor readers, RAN also explained reading accuracy. For the normally developing sample, phonological processing also predicted reading speed.

Computer sciencemedia_common.quotation_subjectText readingLinguisticsEducationPseudowordReading ProblemsReading (process)ta516Psychology (miscellaneous)ta515OrthographyCognitive psychologymedia_commonScientific Studies of Reading
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Yhteisintegroituvuudesta ja sen soveltamisesta empiirisen esimerkin avulla Suomen talouteen

1998

Johansenin SU-menetelmäyhteisintegroituvuusPcFiml 8.0
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Using a phone-based learning tool as an instructional resource for initial literacy learning in rural African families

2020

Background: Despite increased enrolments at primary schools in Zambia, more than half of the children in Grades 1–4 are unable to meet the required minimum standards for literacy. Aim: The study set out to examine the effects of using a phone-based mobile literacy game (Graphogame) to improve literacy skills in children and adults in rural family settings. Setting: The study was conducted in the Katete District, a rural town in the eastern province of Zambia. Methods: Participants were 73 Grade 2 learners (52% boys, mean age 9 years and 48% girls, mean age 10 years) and 37 parents (mean age 36 years). Three literacy tests, measuring letter-sound identification, phonological awareness, spell…

perhe (ilmiöt)early literacy skillslcsh:LC8-6691lcsh:Special aspects of educationmaaseutuyhteisötSambiarural family settingZambiahome literacy environmentgraphogamezambiaoppimispelitlcsh:LB5-3640kotiympäristöAfrikkalcsh:Theory and practice of educationlukutaitokielen oppiminenGraphogameSouth African Journal of Childhood Education
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Motoriikan havainnointilomake (MOQ-T) suomalaisille opettajille - Motor Observation Questionnaire for Teachers -lomakkeen kulttuurinen kääntäminen

2015

Motorisen oppimisen vaikeuksia kuvaava termistö on hyvin kirjavaa. Suomessa ongelmien diagnosoinnissa käytetään käsitteitä kehityksellinen koordinaatiohäiriö ja motoriikan kehityshäiriö. Lapsia, joilla on motorisen oppimisen ongelmia, arvioidaan olevan noin 5–6 prosenttia ikäluokasta; jokaisessa koululuokassa on siis keskimäärin yksi oppilas, joka tarvitsee motoriseen oppimiseensa tukea. Vaikka häiriö on yleinen, liikuntaa opettavilta opettajilta puuttuu työkalut motoriikan oppimisvaikeuden tunnistamiseen kouluympäristössä. Tämän tutkimuksen tarkoituksena oli tehdä kulttuurinen käännös hollantilaisesta opettajille kehitetystä Motor Observation Questionnaire for Teachers (MOQ-T) -lomakkeesta…

motor learning difficultiesmotorisen oppimisen vaikeudetkulttuurinen kääntäminenquestionnairedevelopmental coordination disorderhavainnointilomakeMOQ-Tcultural adaptationkehityksellinen koordinaatiohäiriö
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Continuity of Communication and Language Development (M����tt�� et al., 2016)

2022

Purpose: This longitudinal study examined the development of prelinguistic skills and the continuity of communication and language from the prelinguistic stage to school age. Method: Prelinguistic communication of 427 Finnish children was followed repeatedly from 6 to 18 months of age (n = 203���322 at ages 6, 9, 12, 15, and 18 months), and its associations with language ability at ages 2;0 (n = 104), 3;0 (n = 112), 4;7 (n = 253), 5;3 (n = 102), and 7;9 (n = 236) were examined using latent growth curve modeling. Results: Prelinguistic development across several skills emerged as a rather stable intraindividual characteristic during the first 2 years of life. Continuity from prelinguistic de…

Child language acquisition
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The Role of Family on Pathways to Acquiring Early Reading Skills In Lusaka’s Low-Income Communities

2014

This paper reports findings from the study that examined the role of family in children’s acquisition of early reading skills. We recruited 72 first-grade learners and their parents from low-income Zambian families for the study. In response to a home literacy questionnaire, parents reported on their reading attitudes and family literacy environment. Children’s early reading skills were assessed using two early reading tests (orthographic awareness and decoding competence), both conducted at two different points during the year. Regression analyses of pretest and gain scores revealed that parental reading attitude and family literacy environment significantly predicted early reading skills.…

early reading skillseducationparental reading attitudelow-income familiesZambiafamily literacy environment
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