A Meta‐analytic and Conceptual Update on the Associations Between Procrastination and Multidimensional Perfectionism

The equivocal and debated findings from a 2007 meta‐analysis, which viewed perfectionism as a unidimensional construct, suggested that perfectionism was unrelated to procrastination. The present meta‐analysis aimed to provide a conceptual update and reanalysis of the procrastination–perfectionism association guided by both a multidimensional view of perfectionism and self‐regulation theory. The random‐effects meta‐analyses revealed a small to medium positive average effect size (r  = .23; k  = 43, N  = 10 000; 95% confidence interval (95% CI) [0.19, 0.27]) for trait procrastination and perfectionistic concerns and a small to medium negative average effect size (r  = ?.22; k  = 38, N  = 9544; 95% CI [?0.26, ?0.18]) for procrastination and perfectionistic strivings. The average correlations remained significant after statistically accounting for the joint variance between the two perfectionism dimensions via semi‐partial correlations. For perfectionistic concerns, but not perfectionistic strivings, the effects depended on the perfectionism measure used. All effects did not vary by the trait procrastination measure used or the respondent's sex. Our findings confirm that from a multidimensional perspective, trait procrastination is both positively and negatively associated with higher‐order perfectionism dimensions and further highlights the value of a self‐regulation perspective for understanding the cognitive, affective and behavioural dynamics that characterise these traits. Copyright © 2017 European Association of Personality Psychology     

The Longevity Effects of Religious and Nonreligious Participation: A Meta‐Analysis and Meta‐Regression

Scholars have long argued that the reduced mortality risk associated with frequent participation in religious services derives from two sources: social participation and religious belief efficacy. In contrast, the reduced mortality risk associated with participation in nonreligious groups is thought to derive solely from the social participation component. This study tests the religious efficacy hypothesis by comparing the effects of religious participation with nonreligious participation using meta‐analyses of 312 mortality risk estimates from 74 publications (providing data on more than 300,000 persons). We found no significant difference between the mean hazard ratio (HR) for low religious participation (HR, 1.32; 95% CI, 1.24–1.41) and the mean HR for low nonreligious participation (HR, 1.25; 95% CI, 1.17–1.33). These findings suggest that the positive health effects of religious participation may largely be attributed to the social participation component, rather than to the religious component of the act.     

Meta‐Analysis of Randomized Controlled Trials of Motivational Enhancement Therapy for Reducing Substance Use

The authors report the findings of a meta‐analysis of randomized controlled trials comparing motivational enhancement therapy with no treatment and alternative treatments. Mean effect‐size data are reported. Implications and suggestions for counseling practice and future research are provided.     

Treating Procrastination Using Cognitive Behavior Therapy: A Pragmatic Randomized Controlled Trial Comparing Treatment Delivered via the Internet or in Groups

Procrastination is a common problem among university students, with at least half of the population reporting great difficulties initiating or completing tasks and assignments. Procrastination can have a negative impact on course grades and the ability to achieve a university degree, but can also lead to psychological distress. Cognitive behavior therapy (CBT) is believed to reduce procrastination, but few studies have investigated its effectiveness in a regular clinical setting. The current study explored its effects using a pragmatic randomized controlled trial comparing treatment delivered during 8 weeks as self-guided CBT via the Internet (ICBT) or as group CBT. In total, 92 university students with severe procrastination were included in the study (registered as a clinical trial on Clinicaltrials.gov: NCT02112383). Outcome measures on procrastination, depression, anxiety, and well-being were distributed at pre- and posttreatment as well as 6-month follow-up. An outcome measure of procrastination was administered weekly. Linear mixed and fixed effects models were calculated, along with improvement and deterioration rates. The results showed large within-group effect sizes on procrastination, Cohen’s d of 1.29 for ICBT, 95% Confidence Interval (CI) [0.81, 1.74], and d of 1.24 for group CBT, 95% CI [0.76, 1.70], and small to moderate benefits for depression, anxiety, and well-being. In total, 33.7% were regarded as improved at posttreatment and 46.7% at follow-up. No differences between conditions were observed after the treatment period, however, participants in group CBT continued or maintained their improvement at follow-up, while participants in self-guided ICBT showed some signs of deterioration. The findings from the current study suggest that CBT might be an effective treatment for those struggling with severe procrastination, but that a group format may be better for some to sustain their benefits over time and that the clinical significance of the results need to be investigated further.     

Counseling and Guided Self‐Help Outcomes for Clients With Bulimia Nervosa: A Meta‐Analysis of Clinical Trials From 1980 to 2010

This meta‐analysis included 111 clinical trials exploring the effectiveness of counseling/psychotherapy and guided self‐help approaches in the treatment of bulimia nervosa. In general, single‐group studies supported higher efficacy of counseling/psychotherapy, whereas wait‐list, treatment‐as‐usual, and placebo studies indicated both approaches were equally effective at termination (posttest) and follow‐up in altering binging, purging, laxative use, and self‐reported bulimia or body dissatisfaction perceptions in nearly all comparisons.     

Gender Differences in Loneliness Across the Lifespan: A Meta‐Analysis

Different theoretical contentions on gender differences in loneliness exist, often including the emergence of gender differences in particular developmental periods. To explain those ideas, the current meta‐analysis synthesizes the available evidence on gender differences in loneliness across the lifespan. Three‐level meta‐analyses were conducted with 751 effect sizes, covering 399,798 individuals (45.56% males). Results showed a close‐to‐zero overall effect (g = 0.07). Most examined moderators were non‐significant, except for age, the scope of the sampling area, and year of publication. Most importantly, all effects were small, suggesting that across the lifespan mean levels of loneliness are similar for males and females.     

Learning by Preparing‐to‐Teach and Teaching: A Meta‐Analysis

The present research meta‐analytically examined the effects of preparing‐to‐teach and subsequent teaching (relative to mere studying without teaching expectancy) on the acquisition of domain knowledge. The synthesis of 28 studies indicated that the estimated effect sizes (Hedges' gs) were 0.35 for preparing‐to‐teach and 0.56 for teaching with preparing‐to‐teach. Both preparing‐to‐teach and teaching with preparing‐to‐teach were effective in promoting deep learning (as well as surface learning) and even after a delay. The learning benefits of teaching with preparing‐to‐teach were larger when students expected and engaged in an interactive teaching activity than when they expected and engaged in a non‐interactive teaching activity. The mere expectation of interactive teaching also produced larger learning effects than the expectation of non‐interactive teaching. These results suggest that preparing‐to‐teach and teaching, interactive teaching after preparing to do so in particular, are useful for enhancing learning.     

Resilience: A Meta‐Analytic Approach

This study investigated the relationship between psychological resilience and its relevant variables by using a meta‐analytic method. The results indicated that the largest effect on resilience was found to stem from the protective factors, a medium effect from risk factors, and the smallest effect from demographic factors.     

Meta‐Analysis of Anorexia Nervosa Counseling Outcome Studies From 1990 to 2015

This meta‐analysis of 92 anorexia nervosa counseling articles examined the effectiveness of counseling in reducing symptoms of anorexia nervosa at termination and the longest follow‐up assessments. Treatment‐as‐usual studies showed no effect to small effects at both posttest and follow‐up assessments, wait‐list studies showed small effects at posttest and medium effects at follow‐up, and single‐group uncontrolled studies showed medium to large effects at posttest and medium effects at follow‐up. Implications for research and practice are discussed.     

Cultural and Institutional Determinants of Social Dominance Orientation: A Cross‐Cultural Meta‐Analysis of 27 Societies

We investigate macrocontextual antecedents of national levels of Social Dominance Orientation (SDO). The majority of previous research, in contrast, has tended to focus on individual‐level correlates of SDO. We extend research on Social Dominance Theory by modelling national‐level differences in institutional discrimination, macroeconomic development, and value ideologies as broad situational factors affecting SDO mean levels in previous studies. Our hypotheses were tested in a three‐level meta‐analysis of aggregate data from 50,971 individuals in 95 samples from 27 different societies. Strong effects for hierarchy‐attenuating legitimizing ideologies and gender empowerment were found. Aggregate discrimination against arbitrary‐set groups was less consistently linked to SDO, suggesting that these hierarchies are context‐specific. Using mixed‐effects three‐level modelling, the patterns can be generalized to new contexts and suggest a particular institutional and social climate that fosters high SDO.     

Relationship Between the Supervisory Working Alliance and Outcomes: A Meta‐Analysis

This study investigated the relationships between the supervisory working alliance and supervision outcome variables using meta‐analysis. The authors reviewed 27 articles, dissertations, and theses published between 1990 and 2018. The authors used the MIX program to calculate the meta‐analyses. The results indicate that the supervisory working alliance is positively related to supervision outcome variables. Supervisees’ perceived relationship with the supervisor was positively related to the relationship with the client. This shows that the phenomenon of isomorphism is a repeated pattern in the relationships in supervision and counseling. The authors discuss the limitations and implications.     

Building A General Theory of Meta‐Argumentation

This article presents a critical analysis of the main modern approaches to the problem of meta‐argumentation and suggests a method for developing a general conception of meta‐argumentation. A set of theoretical‐methodological difficulties (aporias) along this path is revealed. Overcoming these aporias would constitute the main steps toward developing the body of a theory of meta‐argumentation.     

Meta‐Analysis of Trauma‐Focused Therapies for Treating the Symptoms of Posttraumatic Stress Disorder

This meta‐analysis of 46 between‐groups studies published between 1997 and 2015 detected treatment effects ranging from large to small when comparing trauma‐focused therapies with no treatment (g = ?1.05), supportive interventions (g = ?0.91), other interventions (g = ?0.57), and non‐trauma‐focused cognitive behavior therapies (g = ?0.08) for the treatment of posttraumatic stress disorder (PTSD). The independent random‐effects models detected modest publication bias and a negligible influence of moderating variables on treatment outcomes. Considerations for counselors who treat PTSD and suggestions for researchers are provided.     

Meta‐Analysis of Integrated Primary and Behavioral Health Care Interventions for Treating Substance Use Among Adults

This meta‐analysis detected low effects in reducing substance use (Hedges's g = –0.11) in favor of using integrated primary and behavioral health care (IPBH) compared with treatment‐as‐usual approaches for adult patients with substance use. The impact of IPBH was limited.     

A Meta‐Analytic Review of Child‐Centered Play Therapy Approaches

The authors explored the overall effectiveness of child‐centered play therapy (CCPT) approaches through a meta‐analytic review of 52 controlled outcome studies between 1995 and 2010. Hierarchical linear modeling techniques estimated a statistically significant moderate treatment effect size (.47) for CCPT, as well as statistically significant relationships between effect size and study characteristics, including child's age, child's ethnicity, caregiver involvement, treatment integrity, publication status, and presenting issue.     

Meta‐Analysis of Counseling Outcomes for the Treatment of Posttraumatic Stress Disorder

This meta‐analysis of 152 published posttraumatic stress disorder (PTSD) clinical trials from 1990 to 2012 concluded that counseling generally produced a small to large effect of treatment across all comparison conditions at termination (d+ = 0.30 to 0.89). These gains were maintained at longest follow‐up (d+ = 0.58 to 0.86) for the wait‐list, treatment‐as‐usual, and single‐group comparisons, but not for the follow‐up placebo comparison (d+ = 0.15), probably because of the low power (j = 3 placebo studies). Clinical trial findings were synthesized using a random‐effects model. No effects of publication bias or moderating variables were evident. No difference was found between trauma‐focused and non‐trauma‐focused approaches. Implications for counseling practice and future PTSD outcome research are addressed.     

Psychometric Meta‐Analysis of the English Version of the Beck Anxiety Inventory

This meta‐analysis reviewed 192 scholarly works from 1993 to 2013 using the Beck Anxiety Inventory (Beck & Steer, 1993 ). Aggregated internal consistency (coefficient alpha) was .91 (k = 117), and test–retest reliability was .65 (k = 18). Convergent comparisons were robust across 33 different anxiety instruments and the Beck Depression Inventory–II (Beck, Steer, & Brown, 1996 ). Structural validity primarily supported the original 2‐factor solution proposed by Beck and Steer ( 1993 ), and diagnostic accuracy varied according to the sample size and criterion cutoff score.     

Meta‐Analysis of Counseling Outcomes for Youth With Conduct Disorders

Twenty‐one clinical trials were synthesized using a random‐effects model, which substantiated that counseling generally produces a medium effect in treating conduct disorder in youth at termination (d + = 0.30 to 0.57; k = 28). However, the lasting effects at follow‐up were unclear because few follow‐up studies (k = 13) have been conducted (d + = ?0.53 to 0.58), and only 2 randomized controlled follow‐up studies were located. No effects of moderating variables were evident. Implications for counseling practice and outcome research are addressed.     

Procrastination,Self‐Downing,Self‐Doubt,and Rational Beliefs: A Moderated Mediation Model

A cross‐sectional study tested the integrated effects of self‐downing, self‐doubt, and rational beliefs on procrastination in a sample of Turkish undergraduate students (N = 315). Results suggest that both self‐downing and rational beliefs have a direct and interactive effect on self‐doubt, and self‐doubt mediates the relationship between self‐downing and procrastination. Results suggest that the indirect effect of self‐downing on procrastination via the mediation of self‐doubt may vary depending on the level of rational beliefs. Implications for counselors and future research directions are discussed.