Научная статья на тему 'EFFICACY OF COGNITIVE BEHAVIORAL THERAPY (CBT) FOR ANXIETY AMONG CHILDREN AND ADOLESCENTS: A SYSTEMATIC REVIEW'

EFFICACY OF COGNITIVE BEHAVIORAL THERAPY (CBT) FOR ANXIETY AMONG CHILDREN AND ADOLESCENTS: A SYSTEMATIC REVIEW Текст научной статьи по специальности «Фундаментальная медицина»

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Russian Law Journal
Scopus
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Ключевые слова
CBT intervention / adolescents / anxiety / meta-analysis / systematic / children

Аннотация научной статьи по фундаментальной медицине, автор научной работы — Syeda Razia Bukhari, Maryam Riaz, Sobia Shah

Objective: Current study focuses on analyzing the effectiveness of cognitive behavioral therapies for anxiety disorders in children and adolescents. Methods: This systematic review is taken through screening last ten years (2013-2023) of clinical trials conducted on children and adolescents having anxiety applying CBT intervention. All data were taken from Scopus, Elsevier, PubMed, PsycARTICLES, and science direct. Results: The compilation of n=8 inclusive clinical trials of the last ten years show the positive effects of CBT application in reducing anxiety symptoms. Conclusion: It is concluded that there should be more research conducted on different regions of the world to maximize the significance of psychological interventions.

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Текст научной работы на тему «EFFICACY OF COGNITIVE BEHAVIORAL THERAPY (CBT) FOR ANXIETY AMONG CHILDREN AND ADOLESCENTS: A SYSTEMATIC REVIEW»

EFFICACY OF COGNITIVE BEHAVIORAL THERAPY (CBT) FOR ANXIETY AMONG CHILDREN AND ADOLESCENTS: A SYSTEMATIC REVIEW

1SYEDA RAZIA BUKHARI, 2MARYAM RIAZ, 3SOBIA SHAH

Assistant Professor & Student Counselor Faculty of Education and Social Sciences, Shaheed Zulfikar Ali Bhutto Institute of Science and Technology, H-8/4 Islamabad (SZABIST, Islamabad Campus) drsyedaraziabukhari@hotmail.com 2Lecturer Psychology Department Riphah International University Malakand 3MS Scholar Faculty of Education and Social Sciences, Shaheed Zulfikar Ali Bhutto Institute of Science and Technology, H-8/4 Islamabad (SZABIST, Islamabad Campus

Abstract

Objective: Current study focuses on analyzing the effectiveness of cognitive behavioral therapies for anxiety disorders in children and adolescents.

Methods: This systematic review is taken through screening last ten years (2013- 2023) of clinical trials conducted on children and adolescents having anxiety applying CBT intervention. All data were taken from Scopus, Elsevier, PubMed, PsycARTICLES, and science direct. Results: The compilation of n=8 inclusive clinical trials of the last ten years show the positive effects of CBT application in reducing anxiety symptoms.

Conclusion: It is concluded that there should be more research conducted on different regions of

the world to maximize the significance of psychological interventions.

Keywords: CBT intervention, adolescents, anxiety, meta-analysis, systematic, children

INTRODUCTION

One of the most prevalent disorders in the globe is anxiety disorders. Anxiety is linked with fear but as defined by (Barlow D.H, 2020)anxiety is a future-focused mood state associated with making plans for probable, impending unfavorable circumstances (actual or perceived), and fear is an alert reaction to a danger that is immediately present or urgent. Anxiety disorders currently have a 7.3% worldwide prevalence, making them the most prevalent mental illnesses. [4.8%-10.9%]. The period between adolescence and adulthood is by no means a seamless shift. As opposed to this, adolescence is characterized by a number of not synchronized but interconnected changes in cognitive, social, emotional, biological and identity related computation. (Kendall & Williams, 1986). Nevertheless, a lot of the shifts that occur during adolescence help someone mature. Others, such as anxiety illnesses, make people more vulnerable to psychopathology (Lerner & Steinberg , 2004)

Adolescence is supposed to be a time where anxiety occurs frequently, but strangely, it is also a period when embracing risks and pursuing independence becomes more intense. ( Mayes , et al, 2010) Biological and psychological aspects of typical adolescent development could include factors that increase the chance of developing anxiety disorders (Steinberg L, 2014). Anxiety is now more widely acknowledged to be a significant issue when it affects children or adolescents. We are now aware how anxiety can harm a child's social and academic development in along with having serious lasting effects. (Pine, 1997). Many kids who have an anxiety disorder will experience it sporadically for the remainder of their lives. Additionally, there are other severe diseases like MDD(Richards, et al 1989).

CBTis helpful in identifying the negative patterns of thoughts and uses cognitive restructuring in changing the patterns of irrational thoughts. The practical implementation of learning theory ideas, such as classical and operant conditioning, is where CBT got its start. So-called "first-wave" behavioral therapy was developed in the 1950s. In U.S Albert Ellis developed (REBT)rational

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emotive behavioral therapy to help patients change the irrational beliefs when faced with stretches of life. When developing his cognitive therapy for patients with depression, Aaron Beck used Ellison's idea. In the 1960s, "second-wave" CBT was created when both the cognitiveas well as behavioral therapies were merged in theory and practice (Thoma, 2015).

In an effort to create well-defined and rigorous techniques founded on fundamental principles that have received empirical validation, firstand secondwave forms of CBT emerged. Second-wave CBT techniques have been the most popular psychotherapies since the 1960s. Functional analytic psychotherapy, thought-based cognitive therapy, dialectical behavior therapy, acceptance and commitment therapy, and extended behavioral activation are a few of the newer treatment modalities that have emerged as a result of a thirdwave form of CBT that has recently attract more focus. Other forms might also exist, but this is speculative (Ruggiero et al., 2018) Cognitive behavioral treatments (CBTs) are proved effective in the reduction of anxiety related problems in children as well as teenagers. The most well-documented treatment for teen anxiety problems is cognitive behavior therapy (CBT) (James A.C, et al, 2013).Programs aimed at various anxiety disorders as well as therapy for individual illnesses are used to address children's anxiety. With children similar anxiety therapy methods are used who are having variety of disorders such as separation anxiety, social anxiety, specific phobias, OCD, and GAD, and who typically present with a number of co-morbid anxiety problems. CBT for adults with anxiety disorders, where there has been an expansion of particular therapy models for multiple anxiety disorders, for instance, a structured CBT programme called "Coping Cat," employs these approaches. Randomized clinical investigations have demonstrated that around two-thirds of children who got CBT were clear of their primary diagnosis at the conclusion of treatment. (Kendall, 1990, Kendall and Hedtke, 2006). Despite the fact that several CBT therapy plans have been examined in young people with various anxiety disorders, fundamental similarities are found. To address anxiety disorders and related issues in children and adolescents, key components can be detailed and thorough assessment, establishing solid therapeutic relationship, cognitive restructuring, repeated exposure with a decrease in avoidance behavior, learning skills, and exposure therapies (Seligman & Ollendick , 2011).

One of the studies conducted in US in 2020aimed to evaluate results of treatment on and disruptive and unhelpful anxiety in kids with autism spectrum disorder, and to examinethe respective effectiveness of two CBT programs with standard care (TAU).Treatment's impact on positive reaction, the severity of ASD symptoms, and adaptive performance related to anxiety were evaluated as secondary goals. Results indicated CBT being effective for kids with disrupted anxiety and ASD, and an adapted CBT techniqueproved to bebeneficial. They also recommended that if healthcare professionals are actively treating school-aged children with ASD, they might consider learning CBT. (Wood et al., 2020).

MATERIAL AND METHOD

Randomized clinical studies were conducted with a specific goal of determining the "cognitive behavior therapy's effectiveness on anxiety among children and teenagers." This meta-analysis systematic study has chosen to focus on collective anxiety. The review covers every form of anxiety, including social anxiety, generalized anxiety, anxiety in autistic children, etc. The approach used to evaluate the clinical trials was founded on accepted standards for performing systematic review research (Chalmers and Haynes, 1994; Wright et al., 2007; Pae, 2015). Search strategy

The information was obtained from a variety of websites, including science direct, pubmed, chochrane, and zendy. Search terms: CBT treating anxiety within children and adolescents were used to find clinical trials on anxiety problems in these age groups. A similar database contained additional supporting literature that was also discovered to bolster the assertion.

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Figure 1 : PRISMA illustration of review data

Inclusion Criteria

The criteria for inclusion were primarily concerned with planning and executing CBT on any type of anxiety disorder condition in children as well as adolescents as part of clinical studies. Only previous 10 years were the center of the random clinical trials (2013-2023). Only publicly available randomized clinical studies were used as proof to back up the assertion. This systematic review research only included articles written in English. As proof, only books and articles were used. No unpublished works of writing were cited to back up the assertion.

Results

The systematic meta-included analysis's studies were primarily concerned with "the impact of CBT upon anxiety in target population(children and adolescents) through randomized clinical studies or trials." N = 20 papers were initially downloaded and reviewed. Based on the keyword search that was used to filter the data, the n=20 was downloaded. Out of n=20, n=14 was further reduced with the goal of excluding clinical trials done on kids and teenagers who had any kind of anxiety condition. The n = 14 was further evaluated to only include randomized clinical trials that concentrated on CBT. It is clear from the comprehensive clinical studies (n = 8) that CBT is an effective strategy for reducing and modifying symptoms of fear and anxiety in kids as well as teenagers.

Efficacy of CBT in treating anxiety disorders in children and adolescents

It's been figured out that cognitive behavior therapy is very effective and reasonably priced for reducing or eliminating the anxiety feelings that many kids and teenagers experience. The clinical studies that were used as examples to support this claim demonstrate successful outcomes and a decrease in symptoms over time. Through the studies n=8, it was also made clear that families who collaborated and participated in the intervention had superior outcomes than CBT used alone or without family focus therapy.

Study Design Setting Sample size Sample and demogr aphic Intervention and Modification Results Limitation Conclusion

Ollendi ck T.H, et al, 2012 Quasi experim ental design Clinica l setting N= 33 adolesce nt and children Thirteen children and teenagers received individual treatment, while 20 were given After eight sessions of therapy, regardless of the research format they were in, more than A randomized control design was not used in During the follow-up, anxiety and depression considerably diminished.

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group therapy. half of the young this

people who research.

underwent CBT were There was

no longer diagnosed no blinding

with their primary of

anxiety disorder interviewers

Wisma two-arm Clinica ERT + CBR Results showed that It is Both patients and

n M.A. pilot l N=39 18 individuals were ERT and CBT seemed impossible therapists agreed that

et al, randomi setting randomly allocated to be adequately to entirely adding ERT to CBT was

2023 zed to the CBT-only practicable and rule out a doable and acceptable.

controll control condition. acceptable to be prospective Furthermore, according

ed trial Randomly, the delivered in a placebo to our preliminary

experimental group broader clinical effect of findings, it may help

with CBT+ERT context. the online youth patients with

treatments Nonetheless, despite ERT anxiety or depression

received 21 adequate treatment because disorders improve their

patients. adherence and there wasn't depressed symptoms,

patient satisfaction, an active anxiety symptoms, and

both could be control their use of ER

further enhanced. group added techniques. Also, it was

Generally speaking, to CBT in determined that the

program and the control study's design was

therapist direction condition. workable, albeit future

are elements that This study studies should try to

are connected to was increase recruitment

teen compliance and conducted rates.

satisfaction with during the

virtual healthcare COVID-19

systems. epidemic,

which could

have

influenced

the findings

Creswe training Five N= 12 Teenage social Nine out of 12 The results The current CAMHS

ll C et case CAMHS anxiety disorder individuals had were drawn environment makes it

al, series of teams may benefit from positive results on all from a tiny, difficult to implement

2021 CT-SAD- within cognitive therapy measures (r for homogeneo CT-SAD-A, a promising

A Berkshi (CT-SAD-A). In CT- social anxiety us sample, treatment for young

delivere re SAD-A therapy, measures was less and there individuals with SAD. To

d in Health eight therapists than 0.60). CT-SAD-A was no guarantee that CAMHS

routine care were trained. Six was calculated to control can use and test CT-

CAMHS, and therapists have cost £1861 group. SAD-A, more work is

qualitati Oxford administered CT- (standard deviation required. As an

ve Health SAD-A to twelve £358) per person. alternative, CT-SAD-A

intervie NHS young people. Qualitative should be tested and

ws Founda Participating in the interviews revealed administered in other

tion qualitative that while therapists settings that are better

Trusts. interviews were and managers suited to care for young

three managers, encountered people whose lives are

seven therapists, difficulties restricted by SAD. Such

six parents, and six implementing the a chance might be

young people. training and therapy offered by the new

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within the present CAMHS context, young people, parents, and therapists found the treatment to be acceptable. school Mental Health Support Teams that are envisioned in the 2017 Children's Mental Health Green Paper.

Maric M et al, 2018 Randomi zed clinical trails Clinica l setting N=123 Children were assigned to four categories based on (a) whether they had gotten child CBT (CCBT) or family CBT (FCBT), and (b) whether their scores on the CBCL subscale for attention problems were normal versus (sub)clinical. Children with severe anxiety disorders benefit more over the long run from FCBT than CCBT, according to the severity of the children's anxiety disorders. There were no variations between CCBT and FCBT for kids with mild symptoms of ADHD, anxiety, or attention issues. In the present research, the only tool accessible to define the presence of youths' attention and hyperactive problems was their CBCL scores. Family participation appears to be a beneficial addition to CBT for kids who also exhibit symptoms of ADHD and anxiety.

Chavir a D.A et al, 2017 Qualitat ive methods Latino commu nity N=43 There were 28 mental health specialists present for the focus group talk. Latino parents were the subjects of qualitative conversations. Results argued that parents had a very positive view of psychotherapist and all the significant components of CBT. Both parents and carers emphasized the importance of making adjustments to address real and observed hurdles to treatment, such as time, convenience, homework, and literacy.While providers were given more negative feedback,Many parents praised a phoning-based approach as being able to overcome a number of their perceived obstacles. Latino parents and Latino mental health workers are the study's primary target populations. Consequentl y, conclusions cannot be extended. In areas with a shortage of clinicians and little access to CBT training,Examining the effectiveness of methods which rely on infrequent clinician interaction, such as phoning-based, therapist-supported bibliotherapy, is critical..Results from this along with additional qualitative studies that consider community opinions could prove relevant for modifying evidence-based treatments for rural Latino adolescents in the years to come.

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Hirshfe Id et al 2010

Waitlist

controll

ed study

with

randomi

zation.

Parent

surveys,

structur

ed

diagnost ic

intervie ws with parents, and

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tests in the lab to

measure behavior al

inhibitio n.

Labora tory

setting +

clinical setting

N= child

parent

CBT

techniq

ue (n =

34) or a

6-month

wait-list

conditio

n (n =

30)

were

randoml y

assigned to 64 anxious children (53% female, mean age 5.4 years, 80%

Europea n

America

n).

Wait-list controlled study with

randomization. Conduct: 64

anxious kids were randomly allocated to receive either a parent-child CBT treatment (n = 34) or a 6-month waitlist condition (n = 30). (53% female, mean age 5.4 years, 80%

European American). Children were evaluated by

interviewers who were oblivious to the children's treatment plans using structured diagnostic interviews with the parents, behavioral inhibition tests in the lab, and parent surveys.

Among 57

participants who completed the

program, the

response rate (much or very much better on the Clinical Global Impression Scale for Anxiety) was 69% versus 32% (CBT vs. controls), p .01; the intent-to-treat rate was 59% versus 30%, p =.016. Children who

received treatment displayed quiet good CGI improvement on social

phobia/avoidant disorder (ES =.95), separation anxiety disorder (ES =.82), and specific phobia (ES =.78), but not on generalized anxiety disorder. Children who were treated also portrayed

greater level of reduction in anxiety disorders (effect size [ES] =.55) and increase in parent-rated coping (ES =.69) than controls. the Infant Behavior Checklist's findings Low return rates put a cap on internalizing scale, which were not statistically significant. Parental worry and age had no effect on treatment response, but behavioral

inhibition did.

Improvements persisted after one year.

Not

mentioned

Results implicated that developmentally adjusted parent-child CBT may proveeffective in children aged 4 to 7.

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Schein der et al, 2013

Randomi zed

control trial

outpati ents

N=64 children

In contrast to a general anxiety programme, a disorder-specific therapy programme (TrennungsAngstpro gramm Fur

Familien [TAFF]; English: Separation Anxiety Family Therapy) is

available for kids with separation anxiety disorder (SAD). 64 SAD-afflicted children aged 8 to 13 and the parents were assigned to either a 16-session treatment programme for the disorder

randomly(TAFF), which included parent education and traditional cognitive-

behavioral therapy (CBT) components, or a 16-week comparison group (Coping Cat [CC]), which was solely focused on the needs of the child. Parental cognitions and diagnoses were evaluated at

baseline and

follow-up visits. At the conclusion of treatment and during the follow-up, ratings of overall success were

gathered.Scores for anxiety,

impairment/distres s, and life quality were obtained at

52 therapy

completers experienced a

response rate (no SAD diagnosis) at 4-week follow-up that was 87.5% higher than 82.1% (TAFF vs. CC; intent-to-treat: 67.7% vs. 69.7%). The response was 83.3% versus 75% at the 1-year follow-up (TAFF vs. CC; purpose to treat: 64.5% vs. 63.6%). There were no notable

differences.With minimal differences between groups and a few small impacts to the benefit of the TAFF program, rating scale data revealed progress for each group over time frames and

evaluation areas.. There was a decrease in the dysfunctional parental beliefs with both treatment regimens.

Not

mentioned

The TAFF programme appears to have a slight edge over a general child-based treatment for SAD, according to the results. These variations, however, were not as significant as was anticipated, suggesting that adding parent education to traditional child-based CBT does not have a significant impact on school-aged SAD

patients. PsycINFO Database Document (c) 2013 APA, all rights reserved.

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Baseline 1, once more following a 4-week delay,

periodically across treatment, after 4 weeks, and at 1 -year follow-up.

Wood J.J, et al, 2020

Random

clinical

trial

At

three

schools

in US

cities,

recruit

ment

for a

rando

m

clinical trial began in April 2014.

N= 167

Randomized group of children (7-13 years old) with ASD and disruptive and maladaptive anxiety received TAU, standard CBT, or CBT tailored for ASD. The unbiased evaluators were not informed of any groupings. Up until January 2017, data was collected, and between December 2018 and February 2019, it was reviewed.

The CBT curriculum designed for ASD performed better than standard CBT. The On parent-reported measures of internalising symptoms, ASD-specific CBT fared better than

conventional CBT and TAU. When weighed against TAU, both CBT conditions had a greater percentage of effective

treatment results.

Not

mentioned

In this study, CBT was helpful for children with disruptive anxiety and ASD, and a modified CBT strategy also showed added advantages. If clinicians are providing

psychiatric care to school-aged children with Autism, they should consider learning CBT skills.

DISCUSSION

Clinical significance of the result

According to a 2020 study by Wood, et al, CBT was beneficial for kids with disruptive anxiety and ASD, and a modified CBT approach also demonstrated additional benefits. Clinicians should think about acquiring CBT techniques if they are giving psychiatric care to school-aged children with autism. Additionally, the review found that many different anxiety disorders could benefit from the use of therapeutic methods like CBT, ERT, exposure therapy, etc.

In their quasi-experimental study, Ollendick , et al. (2012) found that after eight sessions of therapy, irrespective of the research format they were in, over half of the sample, underwent CBT, were no more diagnosed with their primary anxiety disorder. Thirteen children and teenagers received individual treatment, while 20 received group therapy.

In their qualitative study, Chavira. et al. (2017) found that parents had a generally positive view of psychotherapies, and the vital elements of CBT for anxiety. Both parents and carers emphasized the importance of making adjustments to address real and observed hurdles to treatment, such as time, convenience, homework, and literacy.While providers were given more negative feedback,many parents praised a phoning-based approach as being able to overcome a number of their perceived obstacles.For the focus group discussion in this research, a sample of 28 mental health professionals was used. Parents of Latino descent were the topic of in-depth discussions.

LIMITATIONS

In some instances, it was also noted there wasn't any active control group which could be added to CBT in the control condition, and some studies indicated that the findings were derived from a small, homogeneous sample. A single study was conducted amid the COVID-19 epidemic,which might have impact results.No clinical trials on CBT have taken place in Pakistan so far on children or adolescents having anxiety disorder.Both parents and carers emphasised the importance of

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making adjustments to address real and observed hurdles to treatment, such as time, homework, literacy and convenience.

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CONCLUSION

This systematic review study targeted clinical trials of cognitive behavior therapy to treat the psychological problems that arise in children and adolescents having anxiety disorder. In this review, it has been noted that CBT is an effective and goal-oriented therapy that can reduce the existing symptoms of anxiety in targeted population. It is effective for children as well as adolescents. It is important to further assess CBT through clinical trials on clients with anxiety specially adolescents and children to improve the prognosis and its effectiveness.

REFERENCES

[1] Barlow, D. H., Chorpita, B. F., & Turovsky, J. (1996). Fear, panic, anxiety, and disorders of

[2] emotion. In D. A. Hope (Ed.), Nebraska Symposium on Motivation, 1995: Perspectives on anxiety, panic, and fear (pp. 251-328). University of Nebraska Press.

[3] Hofmann SG, Asnaani A, Vonk IJ, Sawyer AT, Fang A. The efficacy of cognitive behavioral

[4] therapy: a review of meta-analyses. Cognit Ther Res. 2012;36:427-40.

[5] Ruggiero, G. M., Spada, M. M., Caselli, G., & Sassaroli, S. (2018). A Historical and Theoretical

[6] Review of Cognitive Behavioral Therapies: From Structural Self-Knowledge to Functional Processes. Journal of rational-emotive and cognitive-behavior therapy : RET, 36(4),

[7] 378-403. https://doi.org/10.1007/s10942-018-0292-8

[8] Seligman, L. D., & Ollendick, T. H. (2011). Cognitive-behavioral therapy for anxiety disorders

[9] in youth. Child and Adolescent Psychiatric Clinics, 20(2), 217-238.

[10] Wood, J. J., Kendall, P. C., Wood, K. S., Kerns, C. M., Seltzer, M., Small, B. J., Lewin, A. B., &

[11] Storch, E. A. (2020). Cognitive Behavioral Treatments for Anxiety in Children With Autism Spectrum Disorder: A Randomized Clinical Trial. JAMA psychiatry, 77(5), 474-483. https: / /doi.org/10.1001 / jamapsychiatry. 2019.4160

[12] Thoma, N., Pilecki, B., & McKay, D. (2015). Contemporary Cognitive Behavior Therapy: A

[13] Review of Theory, History, and Evidence. Psychodynamic psychiatry, 43(3), 423-461. https://doi.org/10.1521/pdps.2015.43.3.423

[14] Kendall PC, Williams C: Therapy with adolescents: treating the "marginal man". Behav Ther 1986; 17:522-537

[ 15] Lerner RM, Steinberg L: Handbook of Adolescent Psychology, 2nd ed. Hoboken, NJ, John [16] Wiley & Sons, 2004

[ 17] Steinberg L: Age of Opportunity: Lessons from the New Science of Adolescence. New York, [ 18] Eamon Dolan/Houghton Mifflin Harcourt, 2014

[ 19] Reynolds E,Magidson J,Mayes L, et al:Risk-taking behaviors across the transition from

[20] adolescence to young adulthood, in Young Adult Mental Health. Edited by Grant JE, PotenzaMN. New York, Oxford University Press, 2010, pp 40-63

[21] Hirshfeld-Becker, D. R., Masek, B., Henin, A., Blakely, L. R., Pollock-Wurman, R. A.,

[22] McQuade, J., DePetrillo, L., Briesch, J., Ollendick, T. H, Rosenbaum, J. F., & Biederman, J. (2010). Cognitive behavioral therapy for 4- to 7-year-old children with anxiety disorders: a randomized clinical trial. Journal of consulting and clinical psychology, 78(4), 498-510. https://doi.org/10.1037/a0019055

[23] Schneider, S., Blatter-Meunier, J., Herren, C., In-Albon, T., Adornetto, C., Meyer, A., &

[24] Lavallee, K. L. (2013). The efficacy of a family-based cognitive-behavioral treatment for separation anxiety disorder in children aged 8-13: a randomized comparison with a general anxiety program. Journal of consulting and clinical psychology, 81(5), 932-940. https://doi.org/10.1037/a00

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