Have parenting programs for disruptive child behavior become less effective?

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Title: Have parenting programs for disruptive child behavior become less effective?
Authors: Leijten, Patty (AUTHOR), Melendez‐Torres, G.J. (AUTHOR), Backhaus, Sophia (AUTHOR), Gardner, Frances (AUTHOR), Groenman, Annabeth P. (AUTHOR), Dekkers, Tycho J. (AUTHOR), van den Hoofdakker, Barbara J. (AUTHOR), Laas Sigurðardóttir, Liina Björg (AUTHOR), Liu, Danni (AUTHOR), Luman, Marjolein (AUTHOR), Mansur, Lara (AUTHOR), Nieterau, Merlin (AUTHOR), van der Oord, Saskia (AUTHOR), Overbeek, Geertjan (AUTHOR), Psyllou, Constantina (AUTHOR), Rienks, Karen (AUTHOR), Schulz, Susanne (AUTHOR), Weisz, John R. (AUTHOR)
Source: Journal of Child Psychology & Psychiatry. Jan2026, Vol. 67 Issue 1, p127-137. 11p.
Subjects: Behavior disorders, Effect sizes (Statistics), Grey literature, Evaluation of human services programs, Parenting, Evaluation of medical care, Meta-analysis, Descriptive statistics, Behavior disorders in children, MEDLINE, Psychology information storage & retrieval systems, Time, Evaluation, Children
Abstract: Background: Behavioral parenting programs have been exhaustively studied over the past five decades. We used this wealth of research to examine how estimates of parenting program effects have evolved over time, and if any time trends in effect estimates can be explained by trial, sample, or intervention characteristics. Methods: We based our meta‐analysis on a systematic search of 22 international and regional databases, gray literature, and 4 trial registries for randomized controlled trials of behavioral parenting programs. Results: We identified 244 eligible trials (1,100 effect sizes; 28,916 families) from 36 countries. Parenting program effects initially reduced and then stabilized. More recent trials used more rigorous methods (e.g., more active control conditions and less risk of bias), samples that were generally older and included more girls, and evaluated interventions that on average had fewer sessions, were more often delivered by independent staff and made less use of time‐out. However, none of these developments explained the initial reduction in effect size estimates during the first decades. Conclusions: Our findings suggest that estimates of parenting program effects are currently stable: Effect sizes are no longer reducing but there is also no evidence of increases over time. Experimentation with the content, delivery, and personalization of parenting programs is needed to identify ways to increase program effects. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Child Psychology & Psychiatry is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
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  Data: Have parenting programs for disruptive child behavior become less effective?
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  Data: <searchLink fieldCode="AR" term="%22Leijten%2C+Patty%22">Leijten, Patty</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Melendez‐Torres%2C+G%2EJ%2E%22">Melendez‐Torres, G.J.</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Backhaus%2C+Sophia%22">Backhaus, Sophia</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Gardner%2C+Frances%22">Gardner, Frances</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Groenman%2C+Annabeth+P%2E%22">Groenman, Annabeth P.</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Dekkers%2C+Tycho+J%2E%22">Dekkers, Tycho J.</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22van+den+Hoofdakker%2C+Barbara+J%2E%22">van den Hoofdakker, Barbara J.</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Laas+Sigurðardóttir%2C+Liina+Björg%22">Laas Sigurðardóttir, Liina Björg</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liu%2C+Danni%22">Liu, Danni</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Luman%2C+Marjolein%22">Luman, Marjolein</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Mansur%2C+Lara%22">Mansur, Lara</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Nieterau%2C+Merlin%22">Nieterau, Merlin</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22van+der+Oord%2C+Saskia%22">van der Oord, Saskia</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Overbeek%2C+Geertjan%22">Overbeek, Geertjan</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Psyllou%2C+Constantina%22">Psyllou, Constantina</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Rienks%2C+Karen%22">Rienks, Karen</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Schulz%2C+Susanne%22">Schulz, Susanne</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Weisz%2C+John+R%2E%22">Weisz, John R.</searchLink> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Child+Psychology+%26+Psychiatry%22">Journal of Child Psychology & Psychiatry</searchLink>. Jan2026, Vol. 67 Issue 1, p127-137. 11p.
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  Data: <searchLink fieldCode="DE" term="%22Behavior+disorders%22">Behavior disorders</searchLink><br /><searchLink fieldCode="DE" term="%22Effect+sizes+%28Statistics%29%22">Effect sizes (Statistics)</searchLink><br /><searchLink fieldCode="DE" term="%22Grey+literature%22">Grey literature</searchLink><br /><searchLink fieldCode="DE" term="%22Evaluation+of+human+services+programs%22">Evaluation of human services programs</searchLink><br /><searchLink fieldCode="DE" term="%22Parenting%22">Parenting</searchLink><br /><searchLink fieldCode="DE" term="%22Evaluation+of+medical+care%22">Evaluation of medical care</searchLink><br /><searchLink fieldCode="DE" term="%22Meta-analysis%22">Meta-analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Descriptive+statistics%22">Descriptive statistics</searchLink><br /><searchLink fieldCode="DE" term="%22Behavior+disorders+in+children%22">Behavior disorders in children</searchLink><br /><searchLink fieldCode="DE" term="%22MEDLINE%22">MEDLINE</searchLink><br /><searchLink fieldCode="DE" term="%22Psychology+information+storage+%26+retrieval+systems%22">Psychology information storage & retrieval systems</searchLink><br /><searchLink fieldCode="DE" term="%22Time%22">Time</searchLink><br /><searchLink fieldCode="DE" term="%22Evaluation%22">Evaluation</searchLink><br /><searchLink fieldCode="DE" term="%22Children%22">Children</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Background: Behavioral parenting programs have been exhaustively studied over the past five decades. We used this wealth of research to examine how estimates of parenting program effects have evolved over time, and if any time trends in effect estimates can be explained by trial, sample, or intervention characteristics. Methods: We based our meta‐analysis on a systematic search of 22 international and regional databases, gray literature, and 4 trial registries for randomized controlled trials of behavioral parenting programs. Results: We identified 244 eligible trials (1,100 effect sizes; 28,916 families) from 36 countries. Parenting program effects initially reduced and then stabilized. More recent trials used more rigorous methods (e.g., more active control conditions and less risk of bias), samples that were generally older and included more girls, and evaluated interventions that on average had fewer sessions, were more often delivered by independent staff and made less use of time‐out. However, none of these developments explained the initial reduction in effect size estimates during the first decades. Conclusions: Our findings suggest that estimates of parenting program effects are currently stable: Effect sizes are no longer reducing but there is also no evidence of increases over time. Experimentation with the content, delivery, and personalization of parenting programs is needed to identify ways to increase program effects. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Child Psychology & Psychiatry is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1111/jcpp.70049
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        Text: English
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        Type: general
      – SubjectFull: Effect sizes (Statistics)
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      – SubjectFull: Grey literature
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      – SubjectFull: Evaluation of human services programs
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      – SubjectFull: Parenting
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      – SubjectFull: Evaluation of medical care
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      – SubjectFull: Meta-analysis
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      – SubjectFull: Descriptive statistics
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      – SubjectFull: Behavior disorders in children
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      – SubjectFull: MEDLINE
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      – SubjectFull: Psychology information storage & retrieval systems
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      – SubjectFull: Time
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      – SubjectFull: Evaluation
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      – SubjectFull: Children
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