Marinus van IJzendoorn

Prof. Marinus van IJzendoorn

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Research Focus & Metrics

Academic Career Length

43Years (1984-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 January 2007 in Psychological Bulletin
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Journal Article
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YBYair Bar-Haim
Yair Bar-Haim
DLDominique Lamy
Dominique Lamy
LPLee Pergamin
Lee Pergamin
MBMarian J. Bakermans-Kranenburg
Marian J. Bakermans-Kranenburg
MIMarinus van IJzendoorn
Marinus van IJzendoorn
This meta-analysis of 172 studies (N = 2,263 anxious,N = 1,768 nonanxious) examined the boundary conditions of threat-related attentional biases in anxiety. Overall, the results show that the bias is reliably demonstrated with different experimental paradigms and under a variety of experimental conditions, but that it is only an effect size of d = 0.45. Although processes requiring conscious perception of threat contribute to the bias, a significant bias is also observed with stimuli outside awareness. The bias is of comparable magnitude across different types of anxious populations (individuals with different clinical disorders, high-anxious nonclinical individuals, anxious children and adults) and is not observed in nonanxious individuals. Empirical and clinical implications as well as future directions for research are discussed.

21 April 2011 in Child Maltreatment
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Journal Article
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MSMarije Stoltenborgh
Marije Stoltenborgh
MIMarinus van IJzendoorn
Marinus van IJzendoorn
EEEveline M. Euser
Eveline M. Euser
MBMarian J. Bakermans-Kranenburg
Marian J. Bakermans-Kranenburg
Our comprehensive meta-analysis combined prevalence figures of childhood sexual abuse (CSA) reported in 217 publications published between 1980 and 2008, including 331 independent samples with a total of 9,911,748 participants. The overall estimated CSA prevalence was 127/1000 in self-report studies and 4/1000 in informant studies. Self-reported CSA was more common among female (180/1000) than among male participants (76/1000). Lowest rates for both girls (113/1000) and boys (41/1000) were found in Asia, and highest rates were found for girls in Australia (215/1000) and for boys in Africa (193/1000). The results of our meta-analysis confirm that CSA is a global problem of considerable extent, but also show that methodological issues drastically influence the self-reported prevalence of CSA.

1 March 2003 in Psychological Bulletin
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Journal Article
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MBMarian J. Bakermans-Kranenburg
Marian J. Bakermans-Kranenburg
MIMarinus van IJzendoorn
Marinus van IJzendoorn
FJFemmie Juffer
Femmie Juffer
Is early preventive intervention effective in enhancing parental sensitivity and infant attachment security, and if so, what type of intervention is most successful? Seventy studies were traced, producing 88 intervention effects on sensitivity (n = 7,636) and/or attachment (n = 1,503). Randomized interventions appeared rather effective in changing insensitive parenting (d = 0.33) and infant attachment insecurity (d = 0.20). The most effective interventions used a moderate number of sessions and a clear-cut behavioral focus in families with, as well as without, multiple problems. Interventions that were more effective in enhancing parental sensitivity were also more effective in enhancing attachment security, which supports the notion of a causal role of sensitivity in shaping attachment.

1 May 1995 in Psychological Bulletin
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Journal Article
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MIMarinus van IJzendoorn
Marinus van IJzendoorn
About a decade ago, the Adult Attachment Interview (AAI; C. George, N. Kaplan, & M. Main, 1985) was developed to explore parents' mental representations of attachment as manifested in language during discourse of childhood experiences. The AAI was intended to predict the quality of the infant-parent attachment relationship, as observed in the Ainsworth Strange Situation, and to predict parents' responsiveness to their infants' attachment signals. The current meta-analysis examined the available evidence with respect to these predictive validity issues. In regard to the 1st issue, the 18 available samples (N = 854) showed a combined effect size of 1.06 in the expected direction for the secure vs. insecure split. For a portion of the studies, the percentage of correspondence between parents' mental representation of attachment and infants' attachment security could be computed (the resulting percentage was 75%; kappa = .49, n = 661). Concerning the 2nd issue, the 10 samples (N = 389) that were retrieved showed a combined effect size of .72 in the expected direction. According to conventional criteria, the effect sizes are large. It was concluded that although the predictive validity of the AAI is a replicated fact, there is only partial knowledge of how attachment representations are transmitted (the transmission gap).

20 October 2014 in Child Abuse Review
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Journal Article
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MSMarije Stoltenborgh
Marije Stoltenborgh
MBMarian J. Bakermans‐Kranenburg
Marian J. Bakermans‐Kranenburg
LALenneke R. A. Alink
Lenneke R. A. Alink
MIMarinus van IJzendoorn
Marinus van IJzendoorn

1 August 1997 in Child Development
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Journal Article
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MWMarianne S De Wolff
Marianne S De Wolff
MIMarinus van IJzendoorn
Marinus van IJzendoorn