Issue 1 (June)

Workplace stress is a prevalent issue affecting employee well-being and organizational productivity. This meta-analysis of longitudinal studies examines the impact of workplace stress on various indicators of employee well-being over time. Drawing from a comprehensive review of the literature, the meta-analysis synthesizes effect sizes from longitudinal studies that assess the relationship between workplace stressors (e.g., job demands, workload, interpersonal conflicts) and employee outcomes, including psychological distress, burnout, job satisfaction, turnover intention, and physical health. Additionally, it explores potential moderators of this relationship, such as coping strategies, organizational support, and individual characteristics, to better understand the complex interplay between workplace stress and employee well-being.

Smartphone use has become ubiquitous among adolescents, raising concerns about its potential impact on psychological well-being. This meta-analysis of cross-sectional studies examines the relationship between smartphone use and various indicators of psychological well-being in adolescents. Drawing from a comprehensive review of the literature, the meta-analysis synthesizes effect sizes from cross-sectional studies that assess the association between different aspects of smartphone use (e.g., screen time, social media engagement, gaming) and psychological outcomes, including depression, anxiety, stress, self-esteem, and loneliness. Additionally, it explores potential moderators of this relationship, such as age, gender, socioeconomic status, and smartphone usage patterns, to better understand the nuanced association between smartphone use and psychological well-being in adolescents.

Anxiety disorders are prevalent mental health conditions that can significantly impair daily functioning and quality of life. Mindfulness-based interventions (MBIs) have emerged as promising approaches for reducing anxiety symptoms. This meta-analysis of randomized controlled trials (RCTs) examines the efficacy of MBIs in reducing anxiety symptoms across various populations and settings. Drawing from a comprehensive review of the literature, the meta-analysis synthesizes effect sizes from RCTs assessing the effectiveness of different MBIs, such as mindfulness-based stress reduction (MBSR) and mindfulness-based cognitive therapy (MBCT), in alleviating symptoms of anxiety disorders, including generalized anxiety disorder, social anxiety disorder, and panic disorder. Additionally, it explores potential moderators of intervention effectiveness, such as intervention format, duration, frequency, and participant characteristics, to identify factors that may enhance the efficacy of MBIs for reducing anxiety symptoms.

Sleep quality plays a crucial role in maintaining mental health and well-being. This meta-analysis of longitudinal studies examines the impact of sleep quality on various indicators of mental health over time. Drawing from a comprehensive review of the literature, the meta-analysis synthesizes effect sizes from longitudinal studies that assess the relationship between sleep quality and mental health outcomes, including depression, anxiety, stress, mood disorders, and overall psychological well-being. Additionally, it explores potential moderators of this relationship, such as age, gender, socioeconomic status, and underlying mental health conditions, to better understand the complex interplay between sleep quality and mental health.

Social media platforms have become integral parts of daily life, but concerns have arisen regarding their potential impact on individuals' self-esteem. This meta-analysis of cross-sectional studies examines the association between social media use and self-esteem. Drawing from a comprehensive review of the literature, the meta-analysis synthesizes effect sizes from cross-sectional studies that assess the relationship between various aspects of social media use (e.g., frequency, duration, types of platforms) and self-esteem levels. Additionally, it explores potential moderators of this relationship, such as age, gender, social comparison tendencies, and underlying psychological vulnerabilities, to better understand the nuanced association between social media use and self-esteem.

Physical exercise has been proposed as a potential strategy to maintain cognitive function and reduce the risk of cognitive decline in older adults. This meta-analysis of randomized controlled trials (RCTs) examines the impact of exercise interventions on cognitive function in older adults. Drawing from a comprehensive review of the literature, the meta-analysis synthesizes effect sizes from RCTs that assess the effectiveness of various types of exercise (e.g., aerobic exercise, resistance training, combination training) on cognitive outcomes, including memory, executive function, processing speed, and overall cognitive performance. Additionally, it explores potential moderators of intervention effectiveness, such as exercise intensity, duration, frequency, and participant characteristics (e.g., age, baseline cognitive status), to better understand the relationship between exercise and cognitive function in older adults.

Meditation practices have gained popularity as strategies for stress reduction and relaxation. This meta-analysis of randomized controlled trials (RCTs) examines the relationship between meditation interventions and stress reduction. Drawing from a comprehensive review of the literature, the meta-analysis synthesizes effect sizes from RCTs that assess the effectiveness of various types of meditation (e.g., mindfulness meditation, transcendental meditation, loving-kindness meditation) on reducing stress levels. Additionally, it explores potential moderators of intervention effectiveness, such as meditation duration, frequency, technique, and participant characteristics, to better understand the mechanisms underlying the stress-reducing effects of meditation.

Cognitive-behavioral therapy (CBT) is a widely used psychological intervention for treating depression. This meta-analysis of randomized controlled trials (RCTs) examines the effectiveness of CBT in reducing symptoms of depression. Drawing from a comprehensive review of the literature, the meta-analysis synthesizes effect sizes from RCTs that assess the efficacy of CBT compared to control conditions (e.g., waitlist, treatment as usual) in alleviating depressive symptoms. Additionally, it explores potential moderators of intervention effectiveness, such as treatment duration, format (individual vs. group), therapist involvement, and participant characteristics (e.g., age, severity of depression), to better understand the factors that influence the outcomes of CBT for depression.

Sleep disturbances are prevalent issues that can significantly impact overall well-being and quality of life. Mindfulness-based interventions (MBIs) have been increasingly utilized as potential approaches for improving sleep quality. This meta-analysis of randomized controlled trials (RCTs) examines the impact of MBIs on sleep quality. Drawing from a comprehensive review of the literature, the meta-analysis synthesizes effect sizes from RCTs that assess the efficacy of various MBIs (e.g., mindfulness-based stress reduction, mindfulness-based cognitive therapy) in improving sleep quality outcomes, including sleep duration, sleep latency, sleep efficiency, and overall sleep satisfaction. Additionally, it explores potential moderators of intervention effectiveness, such as intervention duration, format, frequency, and participant characteristics (e.g., age, presence of sleep disorders), to better understand the mechanisms underlying the effects of MBIs on sleep quality.

Virtual reality exposure therapy (VRET) has emerged as a promising intervention for the treatment of various phobias. This meta-analysis of randomized controlled trials (RCTs) examines the efficacy of VRET in reducing symptoms of phobias. Drawing from a comprehensive review of the literature, the meta-analysis synthesizes effect sizes from RCTs that assess the effectiveness of VRET compared to control conditions (e.g., waitlist, traditional exposure therapy) in alleviating phobia symptoms and improving related outcomes, such as anxiety levels, avoidance behaviors, and treatment adherence. Additionally, it explores potential moderators of intervention effectiveness, such as the type of phobia targeted, VRET protocol (e.g., exposure intensity, presence of therapist guidance), and participant characteristics (e.g., age, severity of phobia), to better understand the factors that influence the outcomes of VRET for phobias.

Acceptance and Commitment Therapy (ACT) has gained recognition as an effective intervention for various mental health conditions, including anxiety disorders. This meta-analysis of randomized controlled trials (RCTs) examines the efficacy of ACT in reducing symptoms of anxiety disorders. Drawing from a comprehensive review of the literature, the meta-analysis synthesizes effect sizes from RCTs that assess the effectiveness of ACT compared to control conditions (e.g., waitlist, treatment as usual) in alleviating symptoms of anxiety disorders, such as generalized anxiety disorder, social anxiety disorder, panic disorder, and specific phobias. Additionally, it explores potential moderators of intervention effectiveness, such as treatment duration, format (individual vs. group), therapist involvement, and participant characteristics (e.g., age, baseline anxiety severity), to better understand the factors that influence the outcomes of ACT for anxiety disorders.

Dialectical Behavior Therapy (DBT) has been established as a leading treatment for Borderline Personality Disorder (BPD). This meta-analysis of randomized controlled trials (RCTs) evaluates the efficacy of DBT in reducing symptoms and improving functioning in individuals with BPD. Through an extensive review of the literature, the meta-analysis aggregates effect sizes from RCTs assessing the effectiveness of DBT compared to control conditions (e.g., treatment as usual, waiting list) in targeting core symptoms of BPD, such as emotion dysregulation, impulsivity, interpersonal difficulties, and self-harming behaviors. Moreover, it examines potential moderators of treatment outcomes, including treatment duration, format (individual vs. group), therapist qualifications, and participant characteristics (e.g., age, gender), to elucidate factors influencing the effectiveness of DBT for BPD.

Eye Movement Desensitization and Reprocessing (EMDR) therapy has emerged as a widely used intervention for treating Post-Traumatic Stress Disorder (PTSD). This meta-analysis of randomized controlled trials (RCTs) evaluates the efficacy of EMDR therapy in reducing PTSD symptoms and improving overall functioning in individuals with PTSD. Through a comprehensive review of the literature, the meta-analysis synthesizes effect sizes from RCTs assessing the effectiveness of EMDR therapy compared to control conditions (e.g., waitlist, active treatments) in addressing core symptoms of PTSD, including intrusive memories, avoidance behaviors, negative cognitions, and hyperarousal. Additionally, it examines potential moderators of treatment outcomes, such as treatment duration, number of sessions, therapist experience, and participant characteristics (e.g., type of trauma, comorbidities), to better understand the factors influencing the effectiveness of EMDR therapy for PTSD.

Mindfulness-Based Cognitive Therapy (MBCT) has gained recognition as a promising intervention for preventing relapse in individuals with Major Depressive Disorder (MDD). This meta-analysis of randomized controlled trials (RCTs) evaluates the efficacy of MBCT in reducing the risk of depressive relapse and recurrence. Through a comprehensive review of the literature, the meta-analysis synthesizes effect sizes from RCTs assessing the effectiveness of MBCT compared to control conditions (e.g., treatment as usual, active treatments) in preventing depressive relapse over follow-up periods. Additionally, it examines potential moderators of treatment outcomes, such as intervention duration, frequency of sessions, participant characteristics (e.g., history of previous depressive episodes, severity of depression), and adherence to mindfulness practice, to elucidate factors influencing the effectiveness of MBCT for relapse prevention in MDD.

Internet-Based Cognitive Behavioral Therapy (iCBT) has emerged as a promising intervention for treating Generalized Anxiety Disorder (GAD). This meta-analysis of randomized controlled trials (RCTs) evaluates the efficacy of iCBT in reducing symptoms of GAD and improving overall functioning in individuals with GAD. Through a comprehensive review of the literature, the meta-analysis synthesizes effect sizes from RCTs assessing the effectiveness of iCBT compared to control conditions (e.g., waitlist, face-to-face therapy) in targeting core symptoms of GAD, including excessive worry, physical tension, and cognitive distortions. Additionally, it examines potential moderators of treatment outcomes, such as treatment duration, level of therapist support, participant characteristics (e.g., age, comorbidities), and adherence to the online program, to better understand the factors influencing the effectiveness of iCBT for GAD.

Virtual Reality Exposure Therapy (VRET) has emerged as a promising intervention for treating specific phobias. This meta-analysis of randomized controlled trials (RCTs) evaluates the efficacy of VRET in reducing symptoms of specific phobias and improving overall functioning in individuals with specific phobias. Through an extensive review of the literature, the meta-analysis synthesizes effect sizes from RCTs assessing the effectiveness of VRET compared to control conditions (e.g., waitlist, traditional exposure therapy) in targeting core symptoms of specific phobias, such as fear, avoidance behaviors, and distress. Additionally, it examines potential moderators of treatment outcomes, such as type of phobia targeted, duration of exposure, level of immersion, and participant characteristics (e.g., age, gender), to better understand the factors influencing the effectiveness of VRET for specific phobias.

Acceptance and Commitment Therapy (ACT) has shown promise as a treatment approach for chronic pain management. This meta-analysis of randomized controlled trials (RCTs) evaluates the efficacy of ACT in reducing pain severity and improving functional outcomes in individuals with chronic pain conditions. Through a thorough review of the literature, the meta-analysis synthesizes effect sizes from RCTs assessing the effectiveness of ACT compared to control conditions (e.g., treatment as usual, waitlist) in targeting pain-related outcomes, including pain intensity, pain interference, physical functioning, and psychological distress. Additionally, it examines potential moderators of treatment outcomes, such as intervention duration, format (individual vs. group), therapist involvement, and participant characteristics (e.g., pain duration, pain location), to better understand the factors influencing the effectiveness of ACT for chronic pain management.

Dialectical Behavior Therapy (DBT) has demonstrated efficacy in addressing emotion dysregulation, a core feature of Borderline Personality Disorder (BPD). This meta-analysis of randomized controlled trials (RCTs) evaluates the effectiveness of DBT in reducing emotion dysregulation and improving overall functioning in individuals with BPD. Through an exhaustive review of the literature, the meta-analysis synthesizes effect sizes from RCTs assessing the effectiveness of DBT compared to control conditions (e.g., treatment as usual, waitlist) in targeting emotion dysregulation, including emotional intensity, reactivity, and instability. Additionally, it examines potential moderators of treatment outcomes, such as treatment duration, format (individual vs. group), therapist qualifications, and participant characteristics (e.g., comorbidities, trauma history), to elucidate factors influencing the effectiveness of DBT for emotion dysregulation in BPD.

Mindfulness-Based Stress Reduction (MBSR) has emerged as a widely used intervention for reducing stress and enhancing psychological well-being. This meta-analysis of randomized controlled trials (RCTs) evaluates the efficacy of MBSR in reducing stress levels and promoting psychological well-being in various populations. Through an extensive review of the literature, the meta-analysis synthesizes effect sizes from RCTs assessing the effectiveness of MBSR compared to control conditions (e.g., waitlist, treatment as usual) in targeting stress-related outcomes, including perceived stress, anxiety, depression, and quality of life. Additionally, it examines potential moderators of treatment outcomes, such as intervention duration, frequency of sessions, level of instructor involvement, and participant characteristics (e.g., clinical vs. non-clinical samples), to better understand the factors influencing the effectiveness of MBSR for stress reduction and psychological well-being.

Cognitive Behavioral Therapy for Insomnia (CBT-I) has become the gold standard treatment for insomnia disorder. This meta-analysis of randomized controlled trials (RCTs) evaluates the efficacy of CBT-I in improving sleep parameters and reducing insomnia symptoms. Through a comprehensive review of the literature, the meta-analysis synthesizes effect sizes from RCTs assessing the effectiveness of CBT-I compared to control conditions (e.g., waitlist, sleep hygiene education) in targeting sleep onset latency, total sleep time, wake after sleep onset, sleep efficiency, and insomnia severity. Additionally, it examines potential moderators of treatment outcomes, such as intervention components (e.g., stimulus control, sleep restriction), delivery format (individual vs. group), therapist involvement, and participant characteristics (e.g., age, comorbidities), to better understand the factors influencing the effectiveness of CBT-I for insomnia management.

 Interpersonal Psychotherapy (IPT) has gained recognition as an effective treatment for depression. This meta-analysis of randomized controlled trials (RCTs) evaluates the efficacy of IPT in reducing depressive symptoms and improving overall functioning in individuals with depression. Through an extensive review of the literature, the meta-analysis synthesizes effect sizes from RCTs assessing the effectiveness of IPT compared to control conditions (e.g., waitlist, supportive therapy) in targeting core symptoms of depression, including sadness, anhedonia, guilt, and interpersonal difficulties. Additionally, it examines potential moderators of treatment outcomes, such as treatment duration, format (individual vs. group), therapist qualifications, and participant characteristics (e.g., age, gender), to better understand the factors influencing the effectiveness of IPT for depression.

Prolonged Exposure Therapy (PE) has emerged as a prominent treatment for Post-Traumatic Stress Disorder (PTSD). This meta-analysis of randomized controlled trials (RCTs) evaluates the efficacy of PE in reducing PTSD symptoms and improving overall functioning in individuals with PTSD. Through a comprehensive review of the literature, the meta-analysis synthesizes effect sizes from RCTs assessing the effectiveness of PE compared to control conditions (e.g., waitlist, supportive therapy) in targeting core symptoms of PTSD, including re-experiencing, avoidance, negative alterations in cognition and mood, and hyperarousal. Additionally, it examines potential moderators of treatment outcomes, such as treatment duration, session frequency, therapist experience, and participant characteristics (e.g., type of trauma, comorbidities), to better understand the factors influencing the effectiveness of PE for PTSD.

Schema Therapy (ST) has gained recognition as a promising treatment approach for Borderline Personality Disorder (BPD). This meta-analysis of randomized controlled trials (RCTs) evaluates the efficacy of ST in reducing BPD symptoms and improving overall functioning in individuals with BPD. Through a comprehensive review of the literature, the meta-analysis synthesizes effect sizes from RCTs assessing the effectiveness of ST compared to control conditions (e.g., treatment as usual, supportive therapy) in targeting core symptoms of BPD, including affect dysregulation, interpersonal difficulties, impulsivity, and identity disturbance. Additionally, it examines potential moderators of treatment outcomes, such as treatment duration, mode of delivery (individual vs. group), therapist experience, and participant characteristics (e.g., comorbidities, trauma history), to better understand the factors influencing the effectiveness of ST for BPD.

Acceptance and Commitment Therapy (ACT) has gained attention as a promising treatment approach for various anxiety disorders. This meta-analysis of randomized controlled trials (RCTs) evaluates the efficacy of ACT in reducing anxiety symptoms and improving overall functioning in individuals with anxiety disorders. Through a thorough review of the literature, the meta-analysis synthesizes effect sizes from RCTs assessing the effectiveness of ACT compared to control conditions (e.g., waitlist, treatment as usual) in targeting core symptoms of anxiety disorders, including generalized anxiety, social anxiety, panic disorder, and specific phobias. Additionally, it examines potential moderators of treatment outcomes, such as intervention duration, format (individual vs. group), therapist involvement, and participant characteristics (e.g., age, comorbidities), to better understand the factors influencing the effectiveness of ACT for anxiety disorders.

Family therapy has been widely used as a treatment approach for adolescent conduct disorder (CD). This meta-analysis of randomized controlled trials (RCTs) evaluates the efficacy of family therapy in reducing conduct problems and improving overall functioning in adolescents with CD. Through an extensive review of the literature, the meta-analysis synthesizes effect sizes from RCTs assessing the effectiveness of family therapy compared to control conditions (e.g., waitlist, individual therapy) in targeting core symptoms of CD, including aggression, defiance, rule-breaking behavior, and family conflict. Additionally, it examines potential moderators of treatment outcomes, such as treatment duration, family involvement, therapist qualifications, and participant characteristics (e.g., age, gender), to better understand the factors influencing the effectiveness of family therapy for adolescent CD.

Mindfulness-Based Cognitive Therapy (MBCT) has gained recognition as a promising intervention for preventing relapse in individuals with recurrent depression. This meta-analysis of randomized controlled trials (RCTs) evaluates the efficacy of MBCT in reducing depressive relapse and improving overall well-being in individuals with recurrent depression. Through a comprehensive review of the literature, the meta-analysis synthesizes effect sizes from RCTs assessing the effectiveness of MBCT compared to control conditions (e.g., treatment as usual, waitlist) in preventing depressive relapse and recurrence. Additionally, it examines potential moderators of treatment outcomes, such as intervention duration, frequency of sessions, therapist involvement, and participant characteristics (e.g., history of depression, comorbidities), to better understand the factors influencing the effectiveness of MBCT for recurrent depression.

Exposure and Response Prevention (ERP) is a first-line psychological treatment for Obsessive-Compulsive Disorder (OCD). This meta-analysis of randomized controlled trials (RCTs) evaluates the efficacy of ERP in reducing OCD symptoms and improving overall functioning in individuals with OCD. Through an exhaustive review of the literature, the meta-analysis synthesizes effect sizes from RCTs assessing the effectiveness of ERP compared to control conditions (e.g., waitlist, supportive therapy) in targeting core symptoms of OCD, including obsessions, compulsions, and related distress. Additionally, it examines potential moderators of treatment outcomes, such as treatment duration, therapist involvement, level of exposure, and participant characteristics (e.g., age, symptom severity), to better understand the factors influencing the effectiveness of ERP for OCD.

Dialectical Behavior Therapy (DBT) has been recognized as a leading treatment for Borderline Personality Disorder (BPD). This meta-analysis of randomized controlled trials (RCTs) evaluates the efficacy of DBT in reducing BPD symptoms and improving overall functioning in individuals with BPD. Through an extensive review of the literature, the meta-analysis synthesizes effect sizes from RCTs assessing the effectiveness of DBT compared to control conditions (e.g., treatment as usual, supportive therapy) in targeting core symptoms of BPD, including emotional dysregulation, interpersonal difficulties, impulsivity, and self-harm behaviors. Additionally, it examines potential moderators of treatment outcomes, such as treatment duration, mode of delivery (individual vs. group), therapist qualifications, and participant characteristics (e.g., comorbidities, trauma history), to better understand the factors influencing the effectiveness of DBT for BPD.

Cognitive Processing Therapy (CPT) has emerged as a leading treatment for Posttraumatic Stress Disorder (PTSD). This meta-analysis of randomized controlled trials (RCTs) evaluates the efficacy of CPT in reducing PTSD symptoms and improving overall functioning in individuals with PTSD. Through a comprehensive review of the literature, the meta-analysis synthesizes effect sizes from RCTs assessing the effectiveness of CPT compared to control conditions (e.g., waitlist, supportive therapy) in targeting core symptoms of PTSD, including intrusive thoughts, avoidance behaviors, negative cognitions, and hyperarousal. Additionally, it examines potential moderators of treatment outcomes, such as treatment duration, mode of delivery (individual vs. group), therapist qualifications, and participant characteristics (e.g., trauma type, comorbidities), to better understand the factors influencing the effectiveness of CPT for PTSD.

Eye Movement Desensitization and Reprocessing (EMDR) therapy has gained recognition as a prominent treatment for Posttraumatic Stress Disorder (PTSD). This meta-analysis of randomized controlled trials (RCTs) evaluates the efficacy of EMDR in reducing PTSD symptoms and improving overall functioning in individuals with PTSD. Through an extensive review of the literature, the meta-analysis synthesizes effect sizes from RCTs assessing the effectiveness of EMDR compared to control conditions (e.g., waitlist, supportive therapy) in targeting core symptoms of PTSD, including intrusive thoughts, avoidance behaviors, negative cognitions, and hyperarousal. Additionally, it examines potential moderators of treatment outcomes, such as treatment duration, session frequency, therapist experience, and participant characteristics (e.g., trauma type, comorbidities), to better understand the factors influencing the effectiveness of EMDR for PTSD.