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Frans Van Der Slik

Biographic Data

ID332681
NAMEFrans Van Der Slik
GIVEN NAMESFrans
FAMILY NAMEVan Der Slik
SIGNATUREVAN DER SLIK F
AFFILIATIONSRadboud University Nijmegen
ORCID0000-0003-3212-8351
VERIFIEDYes
TOTAL WORKS17
TOTAL CITATIONS113
WORKS AS AUTHOR17
WORKS AS EDITOR0
FIRST PUBLICATION YEAR1994
LATEST PUBLICATION YEAR2026
H-INDEX5
  • Differential Effects of Age, Linguistic Distance, Gender, and Education on English Proficiency

    Open Access•Frans Van Der Slik, Roeland Van Hout•ARTICLE•Language Learning•2026

    Do immersion and nonimmersion learners’ English grammaticality judgment test (GJT) scores reflect the same underlying processes in language learning? Drawing on data from Chen and Hartshorne's (2021) study, we argue that they do not. Using generalized additive mixed models (GAMMs), we found that age of onset was the strongest predictor of GJT performance among immersion learners, whereas linguistic distance was the most influential variable for n…

  • Linguistic distance effects on country Toefl scores between 2005 and 2020 and the effect of morphological distance in particular

    Open Access•Frans Van Der Slik, Roeland Van Hout•ARTICLE•Second language Research•2025•References: 2

    We analysed aggregated TOEFL scores from over 15 million non-immersion learners across 127 countries and 65 first languages (L1s), spanning a 16-year period (2005–20). This extensive dataset enabled us to investigate not only the effects of various country-level characteristics – including linguistic distances – but also the dynamic nature of these effects over time. To capture complex, non-linear interactions, we applied a generalized additive m…

  • The economics of L2 English. Evidence from 2.0 mln subjects suggests an economics of language framework to account for country differences in L2 English proficiency

    Open Access•Roeland Van Hout, Frans Van Der Slik•ARTICLE•Journal of Multilingual and…•2025•References: 32

    Contains fulltext : 309861.pdf (Publisher’s version ) (Open Access)

  • Linguistic dissimilarity increases age-related decline in adult language learning

    Open Access•Job Schepens, Roeland Van Hout et al.•ARTICLE•Studies in Second Language…•2023

    We investigated age-related decline in adult learning of Dutch as an additional language (L n ) in speaking, writing, listening, and reading proficiency test scores for 56,024 adult immigrants with 50 L1s who came to the Netherlands for study or work. Performance for all four language skills turned out to decline monotonically after an age of arrival of about 25 years, similar to developmental trajectories observed in earlier aging research on ad…

  • Critical Period Claim Revisited

    Open Access•Frans Van Der Slik, Job Schepens et al.•ARTICLE•Language Learning•2022•References: 27

    A reanalysis of data drawn by Hartshorne, Tenenbaum, and Pinker (2018) from two-thirds of a million English speakers showed that their overall conclusion of one sharply defined critical age at 17.4 for all language learners is based on artificial results. We show that instead of a discontinuous exponential learning with sigmoidal decay (ELSD) model, a continuous ELSD model had a better fit when applied separately to monolinguals, bilinguals, and …

  • The role of morphological complexity in predicting the learnability of an additional language

    Open Access•Frans Van Der Slik, Roeland Van Hout et al.•ARTICLE•Second language Research•2017•Cited by: 5•References: 7

    Applied linguistics may benefit from a morphological complexity measure to get a better grip on language learning problems and to better understand what kind of typological differences between languages are more important than others in facilitating or impeding adult learning of an additional language. Using speaking proficiency scores of 9,000 adult learners of Dutch as an additional language, we reproduced the findings of the Schepens et al. (2…

  • L1 and L2 Distance Effects in Learning L3 Dutch

    Open Access•Job J Schepens, Job Schepens et al.•ARTICLE•Language Learning•2016•Cited by: 8•References: 54

    Many people speak more than two languages. How do languages acquired earlier affect the learnability of additional languages? We show that linguistic distances between speakers' first (L1) and second (L2) languages and their third (L3) language play a role. Larger distances from the L1 to the L3 and from the L2 to the L3 correlate with lower degrees of L3 learnability. The evidence comes from L3 Dutch speaking proficiency test scores obtained by …

  • Learning Complex Features

    Job Schepens, Frans Van Der Slik et al.•ARTICLE•Language Dynamics and Change•2013

    Certain first languages (L1) seem to impede the acquisition of a specific L2 more than other L1s do. This study investigates to what extent different L1s have an impact on the proficiency levels attained in L2 Dutch (Dutch L2 learnability). Our hypothesis is that the varying effects across the L1s are explainable by morphological similarity patterns between the L1s and L2 Dutch. Correlational analyses on typologically defined morphological differ…

  • De invloed van de moedertaal op de verwerving van het Nederlands - Een onderzoek naar 13 West-Europese eerste talen

    Frans Van Der Slik•ARTICLE•Mens & Maatschappij•2009

    The impact of the mother tongue on the acquisition of Dutch as a destination language: The case of 13 West-European first languages .This study reports on the impact of 13 West-European first languages spoken in 18 different language regions on the acquisition of Dutch. Results based on data from approximately 5,500 first-generation migrants, showed that the mother tongue had a considerable impact on the scores for two language skills as measured…

  • Reactie - De ‘O’ is voor … Een reactie op Kooistra, Ultee en Pelzer

    Frans Van Der Slik•ARTICLE•Mens & Maatschappij•2009

    Amsterdam University Press is a leading publisher of academic books, journals and textbooks in the Humanities and Social Sciences. Our aim is to make current research available to scholars, students, innovators, and the general public. AUP stands for scholarly excellence, global presence, and engagement with the international academic community

  • Research

    Frans Van Der Slik, Frans W P Van der Slik et al.•ARTICLE•International Journal for the…•2006•Cited by: 2•References: 15

    (2006). RESEARCH: 'Orthodox, Humanitarian, and Science-Inspired Belief in Relation to Prejudice Against Jews, Muslims, and Ethnic Minorities: The Content of One's Belief Does Matter' The International Journal for the Psychology of Religion: Vol. 16, No. 2, pp. 113-126

  • Retention of Irish skills

    Open Access•Lelia Murtagh, Frans Van Der Slik•ARTICLE•International Journal of…•2004

    This paper describes a study of retention of school-acquired Irish among school leavers. The initial group selected represented final year secondary school students from three different instructional categories: ordinary level Irish, advanced level Irish and immersion school students. Participants were interviewed and their language skills assessed as they completed their study of Irish and again 18 months after they had left secondary school. Pr…

  • Home Language and Language Proficiency

    Geert Driessen, Frans Van Der Slik et al.•ARTICLE•Journal of Multilingual and…•2002•Cited by: 9

    This article reports on a large-scale longitudinal study into the development of language proficiency of Dutch primary school pupils aged 7–10. Data on language proficiency and a range of background variables (home language, level of education and occupational status of parents, language background, migrants' length of residence) from 4419 pupils were analysed. The main outcomes of the study are that, although children with an immigrant language …

  • Education, Religiosity and Moral Attitudes

    Peer Scheepers, Manfred Te Grotenhuis et al.•ARTICLE•Sociology of Religion•2002•Cited by: 77•References: 10

    n Contains fulltext :\n 62440.pdf (Publisher’s version ) (Open Access)\n

  • Religion, Denomination, and Education in The Netherlands

    Open Access•Geert Driessen, Frans Van Der Slik•ARTICLE•Journal for the Scientific Study…•2001•Cited by: 5

    After 1850, The Netherlands developed into a strongly pillarized or denominational society. Starting in 1965, however, a process of secularization and depillarization emerged and the influence of the institutionalized denominations declined greatly. Today, there are indications that the process of secularization has reached its peak. Remarkably enough, such secularization and depillarization has had little influence on the educational system in T…

  • Religion and Attitudes on Moral Issues

    Peer Scheepers, Frans Van Der Slik•ARTICLE•Journal for the Scientific Study…•1998•Cited by: 7

    Peer Scheepers, Frans Van Der Slik, Religion and Attitudes on Moral Issues: Effects of Individual, Spouse and Parental Characteristics, Journal for the Scientific Study of Religion, Vol. 37, No. 4 (Dec., 1998), pp. 678-691

  • Measuring Christian Beliefs

    Frans Van Der Slik•ARTICLE•Journal of Empirical Theology•1994

    This article opens with a critique on the conventional scales intended to measure Christian beliefs. It is concluded that the implicit theological approach behind Creed-alike scales is one that is taken for granted (a neo-scholastic one). The Humanistic Religious Beliefs Scale (HUMBEL) is meant to overcome this one-sidedness. Based on a critical review of two research lines, it was concluded that: a) researchers inspired by the study of Hunt (197…

  • Education, Religiosity and Moral Attitudes

    Peer Scheepers, Manfred Te Grotenhuis et al.•ARTICLE•Sociology of Religion•2002•Cited by: 77•References: 10

    n Contains fulltext :\n 62440.pdf (Publisher’s version ) (Open Access)\n

  • Home Language and Language Proficiency

    Geert Driessen, Frans Van Der Slik et al.•ARTICLE•Journal of Multilingual and…•2002•Cited by: 9

    This article reports on a large-scale longitudinal study into the development of language proficiency of Dutch primary school pupils aged 7–10. Data on language proficiency and a range of background variables (home language, level of education and occupational status of parents, language background, migrants' length of residence) from 4419 pupils were analysed. The main outcomes of the study are that, although children with an immigrant language …

  • L1 and L2 Distance Effects in Learning L3 Dutch

    Open Access•Job J Schepens, Job Schepens et al.•ARTICLE•Language Learning•2016•Cited by: 8•References: 54

    Many people speak more than two languages. How do languages acquired earlier affect the learnability of additional languages? We show that linguistic distances between speakers' first (L1) and second (L2) languages and their third (L3) language play a role. Larger distances from the L1 to the L3 and from the L2 to the L3 correlate with lower degrees of L3 learnability. The evidence comes from L3 Dutch speaking proficiency test scores obtained by …

  • Religion and Attitudes on Moral Issues

    Peer Scheepers, Frans Van Der Slik•ARTICLE•Journal for the Scientific Study…•1998•Cited by: 7

    Peer Scheepers, Frans Van Der Slik, Religion and Attitudes on Moral Issues: Effects of Individual, Spouse and Parental Characteristics, Journal for the Scientific Study of Religion, Vol. 37, No. 4 (Dec., 1998), pp. 678-691

  • The role of morphological complexity in predicting the learnability of an additional language

    Open Access•Frans Van Der Slik, Roeland Van Hout et al.•ARTICLE•Second language Research•2017•Cited by: 5•References: 7

    Applied linguistics may benefit from a morphological complexity measure to get a better grip on language learning problems and to better understand what kind of typological differences between languages are more important than others in facilitating or impeding adult learning of an additional language. Using speaking proficiency scores of 9,000 adult learners of Dutch as an additional language, we reproduced the findings of the Schepens et al. (2…

  • Religion, Denomination, and Education in The Netherlands

    Open Access•Geert Driessen, Frans Van Der Slik•ARTICLE•Journal for the Scientific Study…•2001•Cited by: 5

    After 1850, The Netherlands developed into a strongly pillarized or denominational society. Starting in 1965, however, a process of secularization and depillarization emerged and the influence of the institutionalized denominations declined greatly. Today, there are indications that the process of secularization has reached its peak. Remarkably enough, such secularization and depillarization has had little influence on the educational system in T…

  • Research

    Frans Van Der Slik, Frans W P Van der Slik et al.•ARTICLE•International Journal for the…•2006•Cited by: 2•References: 15

    (2006). RESEARCH: 'Orthodox, Humanitarian, and Science-Inspired Belief in Relation to Prejudice Against Jews, Muslims, and Ethnic Minorities: The Content of One's Belief Does Matter' The International Journal for the Psychology of Religion: Vol. 16, No. 2, pp. 113-126

  • Measuring Christian Beliefs

    Frans Van Der Slik•ARTICLE•Journal of Empirical Theology•1994

    This article opens with a critique on the conventional scales intended to measure Christian beliefs. It is concluded that the implicit theological approach behind Creed-alike scales is one that is taken for granted (a neo-scholastic one). The Humanistic Religious Beliefs Scale (HUMBEL) is meant to overcome this one-sidedness. Based on a critical review of two research lines, it was concluded that: a) researchers inspired by the study of Hunt (197…

  • Religion and Attitudes on Moral Issues

    Peer Scheepers, Frans Van Der Slik•ARTICLE•Journal for the Scientific Study…•1998•Cited by: 7

    Peer Scheepers, Frans Van Der Slik, Religion and Attitudes on Moral Issues: Effects of Individual, Spouse and Parental Characteristics, Journal for the Scientific Study of Religion, Vol. 37, No. 4 (Dec., 1998), pp. 678-691

  • Religion, Denomination, and Education in The Netherlands

    Open Access•Geert Driessen, Frans Van Der Slik•ARTICLE•Journal for the Scientific Study…•2001•Cited by: 5

    After 1850, The Netherlands developed into a strongly pillarized or denominational society. Starting in 1965, however, a process of secularization and depillarization emerged and the influence of the institutionalized denominations declined greatly. Today, there are indications that the process of secularization has reached its peak. Remarkably enough, such secularization and depillarization has had little influence on the educational system in T…

  • Home Language and Language Proficiency

    Geert Driessen, Frans Van Der Slik et al.•ARTICLE•Journal of Multilingual and…•2002•Cited by: 9

    This article reports on a large-scale longitudinal study into the development of language proficiency of Dutch primary school pupils aged 7–10. Data on language proficiency and a range of background variables (home language, level of education and occupational status of parents, language background, migrants' length of residence) from 4419 pupils were analysed. The main outcomes of the study are that, although children with an immigrant language …

  • Education, Religiosity and Moral Attitudes

    Peer Scheepers, Manfred Te Grotenhuis et al.•ARTICLE•Sociology of Religion•2002•Cited by: 77•References: 10

    n Contains fulltext :\n 62440.pdf (Publisher’s version ) (Open Access)\n

  • Retention of Irish skills

    Open Access•Lelia Murtagh, Frans Van Der Slik•ARTICLE•International Journal of…•2004

    This paper describes a study of retention of school-acquired Irish among school leavers. The initial group selected represented final year secondary school students from three different instructional categories: ordinary level Irish, advanced level Irish and immersion school students. Participants were interviewed and their language skills assessed as they completed their study of Irish and again 18 months after they had left secondary school. Pr…

  • Research

    Frans Van Der Slik, Frans W P Van der Slik et al.•ARTICLE•International Journal for the…•2006•Cited by: 2•References: 15

    (2006). RESEARCH: 'Orthodox, Humanitarian, and Science-Inspired Belief in Relation to Prejudice Against Jews, Muslims, and Ethnic Minorities: The Content of One's Belief Does Matter' The International Journal for the Psychology of Religion: Vol. 16, No. 2, pp. 113-126

  • De invloed van de moedertaal op de verwerving van het Nederlands - Een onderzoek naar 13 West-Europese eerste talen

    Frans Van Der Slik•ARTICLE•Mens & Maatschappij•2009

    The impact of the mother tongue on the acquisition of Dutch as a destination language: The case of 13 West-European first languages .This study reports on the impact of 13 West-European first languages spoken in 18 different language regions on the acquisition of Dutch. Results based on data from approximately 5,500 first-generation migrants, showed that the mother tongue had a considerable impact on the scores for two language skills as measured…

  • Reactie - De ‘O’ is voor … Een reactie op Kooistra, Ultee en Pelzer

    Frans Van Der Slik•ARTICLE•Mens & Maatschappij•2009

    Amsterdam University Press is a leading publisher of academic books, journals and textbooks in the Humanities and Social Sciences. Our aim is to make current research available to scholars, students, innovators, and the general public. AUP stands for scholarly excellence, global presence, and engagement with the international academic community

  • Learning Complex Features

    Job Schepens, Frans Van Der Slik et al.•ARTICLE•Language Dynamics and Change•2013

    Certain first languages (L1) seem to impede the acquisition of a specific L2 more than other L1s do. This study investigates to what extent different L1s have an impact on the proficiency levels attained in L2 Dutch (Dutch L2 learnability). Our hypothesis is that the varying effects across the L1s are explainable by morphological similarity patterns between the L1s and L2 Dutch. Correlational analyses on typologically defined morphological differ…

  • L1 and L2 Distance Effects in Learning L3 Dutch

    Open Access•Job J Schepens, Job Schepens et al.•ARTICLE•Language Learning•2016•Cited by: 8•References: 54

    Many people speak more than two languages. How do languages acquired earlier affect the learnability of additional languages? We show that linguistic distances between speakers' first (L1) and second (L2) languages and their third (L3) language play a role. Larger distances from the L1 to the L3 and from the L2 to the L3 correlate with lower degrees of L3 learnability. The evidence comes from L3 Dutch speaking proficiency test scores obtained by …

  • The role of morphological complexity in predicting the learnability of an additional language

    Open Access•Frans Van Der Slik, Roeland Van Hout et al.•ARTICLE•Second language Research•2017•Cited by: 5•References: 7

    Applied linguistics may benefit from a morphological complexity measure to get a better grip on language learning problems and to better understand what kind of typological differences between languages are more important than others in facilitating or impeding adult learning of an additional language. Using speaking proficiency scores of 9,000 adult learners of Dutch as an additional language, we reproduced the findings of the Schepens et al. (2…

  • Critical Period Claim Revisited

    Open Access•Frans Van Der Slik, Job Schepens et al.•ARTICLE•Language Learning•2022•References: 27

    A reanalysis of data drawn by Hartshorne, Tenenbaum, and Pinker (2018) from two-thirds of a million English speakers showed that their overall conclusion of one sharply defined critical age at 17.4 for all language learners is based on artificial results. We show that instead of a discontinuous exponential learning with sigmoidal decay (ELSD) model, a continuous ELSD model had a better fit when applied separately to monolinguals, bilinguals, and …

  • Linguistic dissimilarity increases age-related decline in adult language learning

    Open Access•Job Schepens, Roeland Van Hout et al.•ARTICLE•Studies in Second Language…•2023

    We investigated age-related decline in adult learning of Dutch as an additional language (L n ) in speaking, writing, listening, and reading proficiency test scores for 56,024 adult immigrants with 50 L1s who came to the Netherlands for study or work. Performance for all four language skills turned out to decline monotonically after an age of arrival of about 25 years, similar to developmental trajectories observed in earlier aging research on ad…

  • Linguistic distance effects on country Toefl scores between 2005 and 2020 and the effect of morphological distance in particular

    Open Access•Frans Van Der Slik, Roeland Van Hout•ARTICLE•Second language Research•2025•References: 2

    We analysed aggregated TOEFL scores from over 15 million non-immersion learners across 127 countries and 65 first languages (L1s), spanning a 16-year period (2005–20). This extensive dataset enabled us to investigate not only the effects of various country-level characteristics – including linguistic distances – but also the dynamic nature of these effects over time. To capture complex, non-linear interactions, we applied a generalized additive m…

  • The economics of L2 English. Evidence from 2.0 mln subjects suggests an economics of language framework to account for country differences in L2 English proficiency

    Open Access•Roeland Van Hout, Frans Van Der Slik•ARTICLE•Journal of Multilingual and…•2025•References: 32

    Contains fulltext : 309861.pdf (Publisher’s version ) (Open Access)

  • Differential Effects of Age, Linguistic Distance, Gender, and Education on English Proficiency

    Open Access•Frans Van Der Slik, Roeland Van Hout•ARTICLE•Language Learning•2026

    Do immersion and nonimmersion learners’ English grammaticality judgment test (GJT) scores reflect the same underlying processes in language learning? Drawing on data from Chen and Hartshorne's (2021) study, we argue that they do not. Using generalized additive mixed models (GAMMs), we found that age of onset was the strongest predictor of GJT performance among immersion learners, whereas linguistic distance was the most influential variable for n…

Psychology (14 works) · Sociology (9 works) · Linguistics (8 works) · Language proficiency (7 works) · Social Psychology (6 works) · Mathematics education (5 works) · Computer Science (4 works) · Developmental psychology (4 works) · Language and cultural evolution (4 works) · Law (4 works)

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