Psychological therapies for people with intellectual disabilities: An updated systematic review and meta-analysis

OBJECTIVE

The aim of this systematic review and meta-analysis (PROSPERO 2020 CRD42020169323) was to evaluate the efficacy of psychological therapy for people with intellectual disabilities.

METHOD

A comprehensive literature search yielded 22,444 studies which were screened for eligibility. Studies were eligible for inclusion if a psychological therapy was delivered to people with intellectual disabilities compared to a group who did not receive the therapy. Thirty-three controlled trials were eligible for inclusion in the review, with 19 included within a DerSimonian-Laird random effects meta-analysis. Subgroup analysis was completed by clinical presentation, and by comparing randomised trials to non-randomised trials, and group-based to individually delivered psychotherapy.

RESULTS

Following the removal of outliers, psychological therapy for a range of mental health problems was associated with a small and significant effect size, g = 0.43, 95% CI [0.20, 0.67], N = 698. There was evidence of heterogeneity and bias due to studies with small sample sizes and a lack of randomisation. Non-randomised studies were associated with a large effect size, g = 0.90, 95% CI [0.47, 1.32], N = 174, while randomised studies were associated with a small effect size, g = 0.36, 95% CI [0.17, 0.55], N = 438, excluding outliers. Individually delivered psychological therapy was associated with a small and non-significant effect size, g = 0.32, 95% CI [-0.01, 0.65], N = 146, while group-based interventions were associated with a small and significant effect size, g = 0.37, 95% CI [0.05, 0.68], N = 361, again, excluding outliers. Psychological therapy for anger was associated with a moderate effect size, g = 0.60, 95% CI [0.26, 0.93], N = 324, while treatment for depression and anxiety was associated with a small and non-significant effect size, g = 0.38, 95% CI [-0.10, 0.85], N = 216, after outliers were removed.

CONCLUSIONS

Studies are fraught with methodological weaknesses limiting the ability to make firm conclusions about the effectiveness of psychological therapy for people with intellectual disabilities. Improved reporting standards, appropriately powered and well-designed trials, and greater consideration of the nature and degree of adaptations to therapy are needed to minimise bias and increase the certainty of conclusions.

Impact of cognitive behavioural play therapy on social anxiety among school children with stuttering deficit: A cluster randomised trial with three months follow-up

BACKGROUND

Stuttering is a speech deficit which is characterized by obstruction of speech eloquence and verbal expression in addition to involuntary flow of air during communication. School children with communication deficit often experience social anxiety in their immediate environment. Currently, reports show that a good number of children with communication deficits are prone to social maladjustment due to their being socially inept. And this has significantly affected their thought pattern, social behaviours and emotional responses. In view of this, we examined the impact of cognitive behavioural play therapy in reducing social anxiety among school children with stuttering.

METHOD

This is a pretest-posttest randomized control group design. Participants were 178schoolchildren in inclusive schools in South east Nigeria. Participants in the intervention group were treated using cognitive behavioural play therapy programme (CBPT). Participants in the waitlist control group were only assessed at three points of assessment. Data analyses were completed using repeated measures ANOVA.

RESULTS

The results show that cognitive behavioural play therapy is beneficial in decreasing schoolchildren's social anxiety scores. The intervention equally showed the considerable impacts on the children when exposed to cognitive behavioural play programme at different times of assessment compared to waitlisted control group.

CONCLUSION

It is concluded that CBPT is a long-term psychotherapeutic programme that has significant impacts in reducing social anxiety among children with stuttering. This study makes a leading contribution on the limited scholarship focusing on the impact of CBPT on social anxiety of special population with stuttering deficits in developing countries.

Verbal responses, depressive symptoms, reminiscence functions and cognitive emotion regulation in older women receiving individual reminiscence therapy

AIMS AND OBJECTIVES

To examine the effectiveness of individual reminiscence therapy in community-dwelling older women with depressive symptoms and to explore the characteristics of participants' verbalisation in the process.

BACKGROUND

Previous studies have found reminiscence was related to depression and anxiety. Although reminiscence therapy is widely used to reduce depression, little is known about how it works, and the content of verbalisations might provide one explanation.

DESIGN

The study employed a one-group pretest-post-test design.

METHODS

Twenty-seven participants underwent 6-week interventions of individual reminiscence therapy at home that were conducted by one nurse and induced through seeing old photographs. The Geriatric Depression Scale, Zung Self-rating Anxiety Scale, Reminiscence Functions Scale and Cognitive Emotion Regulation Questionnaire were used to measure the emotional states, reminiscence functions and cognitive emotion regulation strategies. Participants' verbalisations were categorised using the Client Behavior System.

RESULTS

Reminiscence therapy relieved depression and anxiety. Both the reminiscence function and cognitive emotion regulation became more favourable after interventions. Furthermore, higher frequencies of recounting, cognitive-behavioural exploration and affective exploration were noted in the process. Participants with more severe depressive symptoms tended to display a higher frequency of affective exploration. The reduction in depression, self-negative reminiscence and negative-focused emotion regulation were respectively associated with verbalisations.

CONCLUSIONS

Individual reminiscence therapy might relieve negative emotion and improve reminiscence function and cognitive emotion regulation. The participants' verbalisation is worthy of our attention, due to its correlation with the severity of depression and its mitigating effects on the depression, anxiety, self-negative reminiscence and negative-focused regulation in older women. The results contribute to our understanding of the therapeutic procedure and suggest a need for more research on the therapeutic processes.

RELEVANCE TO CLINICAL PRACTICE

Study on processes could help training novice clinical interveners so that reminiscence therapy can work better on emotional disorders in clinical practice.

The impact of bibliotherapy superheroes on youth who experience parental absence

As one key element of establishing a superhero persona, many superhero myths are based on the principle of experiencing parental loss at an early age. This study examined the impact of group bibliotherapy using superhero stories with children and adolescents who have experienced parental absence. The 187 participants who resided in foster care were divided into three experimental conditions: Bibliotherapy with superhero stories, bibliotherapy without superheroes, and no treatment. Four dependent variables were tested in a pre–post–follow-up design: Anxiety, violent behavior, aggression, and future orientations. Results indicated that the strongest desired outcomes were obtained in the superhero treatment condition: There were significant positive changes on all four dependent variables, with changes sustained at follow-up. In the other treatment condition, significant changes were observed on only two variables and were not sustained at follow-up. No significant changes were observed in the non-treatment group. On the future orientations scale, only children in the superhero condition indicated change: They gained in future goals and had reduced fantasies about home. In general, results support the effectiveness of bibliotherapy with children and clearly point to the unique contribution of bibliotherapy content tailored to children's specific needs.

Expert clinicians' prototypes of an ideal child treatment in psychodynamic and cognitive-behavioral therapy: Is mentalization seen as a common process factor?

OBJECTIVE

To investigate (a) whether expert clinicians within psychodynamic therapy (PDT) and cognitive-behavioral therapy (CBT) agree on key features of child psychotherapy process using the Child Psychotherapy Process Q-Set (CPQ); (b) whether these two prototypes can be empirically distinguished; and (c) whether promoting mentalization (operationalized as reflective functioning [RF]) is a shared component of the way expert clinicians conceptualize these two treatment models.

METHOD

Thirty-one raters with expertise in PDT, CBT, and RF provided ratings of the 100 CPQ items to describe an ideal prototype session that adheres to the principles of their treatment model. Two Q-factor analyses with varimax rotation were conducted.

RESULTS

Expert clinicians reached a high level of agreement on their respective PDT and CBT prototypes. These prototypes loaded onto two independent factors. The RF process prototype loaded onto both factors.

CONCLUSIONS

From the theoretical perspective of expert clinicians representing PDT and CBT, a focus on RF appears to be a common process factor in the way both treatment models are conceptualized. The CPQ can also be a useful instrument in teaching psychotherapy process from different theoretical perspectives and training future clinicians in their application. Future researchers can use these prototypes to explore process in actual sessions.

Behavioural and cognitive-behavioural interventions for outwardly-directed aggressive behaviour in people with intellectual disabilities

BACKGROUND

Outwardly-directed aggressive behaviour is a significant part of problem behaviours presented by people with intellectual disabilities. Prevalence rates of up to 50% have been reported in the literature, depending on the population sampled. Such behaviours often run a long-term course and are a major cause of social exclusion. This is an update of a previously published systematic review (see Hassiotis 2004; Hassiotis 2008).

OBJECTIVES

To evaluate the efficacy of behavioural and cognitive-behavioural interventions on outwardly-directed aggressive behaviour in people with intellectual disabilities when compared to standard intervention or wait-list controls.

SEARCH METHODS

In April 2014 we searched CENTRAL, Ovid MEDLINE, Embase, and eight other databases. We also searched two trials registers, checked reference lists, and handsearched relevant journals to identify any additional trials.

SELECTION CRITERIA

We included studies if more than four participants (children or adults) were allocated by random or quasi-random methods to either intervention, standard treatment, or wait-list control groups.

DATA COLLECTION AND ANALYSIS

Two review authors independently identified studies and extracted and assessed the quality of the data.

MAIN RESULTS

We deemed six studies (309 participants), based on adult populations with intellectual disabilities, suitable for inclusion in the current version of this review. These studies examined a range of cognitive-behavioural therapy (CBT) approaches: anger management (three studies (n = 235); one individual therapy and two group-based); relaxation (one study; n = 12), mindfulness based on meditation (one study; n = 34), problem solving and assertiveness training (one study; n = 28). We were unable to include any studies using behavioural interventions. There were no studies of children.Only one study reported moderate quality of evidence for outcomes of interest as assessed by the Grades of Recommendations, Assessment, Development and Evaluation (GRADE) approach. We judged the evidence for the remaining studies to be of very low to low quality. Most studies were at risk of bias in two or more domains: one study did not randomly allocate participants and in two studies the process of randomisation was unclear; in one study there was no allocation concealment and in three studies this was unclear; blinding of assessors did not occur in three studies; incomplete outcome data were presented in one study and unclear in two studies; there was selective reporting in one study; and other biases were present in one study and unclear in four studies.Three of the six studies showed some benefit of the intervention on improving anger ratings. We did not conduct a meta-analysis, as we considered the studies too heterogeneous to combine (e.g. due to differences in the types of participants, sample size interventions, and outcome measures).Follow-up data for anger ratings for both the treatment and control groups were available for two studies. Only one of these studies (n = 161) had adequate long-term data (10 months), which found some benefit of treatment at follow-up (continued improvement in anger coping skills as rated by key workers; moderate-quality evidence).Two studies (n = 192) reported some evidence that the intervention reduces the number of incidents of aggression and one study (n = 28) reported evidence that the intervention improved mental health symptoms.One study investigated the effects of the intervention on quality of life and cost of health and social care utilisation. This study provided moderate-quality evidence, which suggests that compared to no treatment, behavioural or cognitive-behavioural interventions do not improve quality of life at 16 weeks (n = 129) or at 10 months follow-up (n = 140), or reduce the cost of health service utilisation (n = 133).Only one study (n = 28) assessed adaptive functioning. It reported evidence that assertiveness and problem-solving training improved adaptive behaviour.No studies reported data on adverse events.

AUTHORS' CONCLUSIONS

The existing evidence on the effectiveness of behavioural and cognitive-behavioural interventions on outwardly-directed aggression in children and adults with intellectual disabilities is limited. There is a paucity of methodologically sound clinical trials and a lack of long-term follow-up data. Given the impact of such behaviours on the individual and his or her support workers, effective interventions are essential. We recommend that randomised controlled trials of sufficient power are carried out using primary outcomes that include reduction in outward-directed aggressive behaviour, improvement in quality of life, and cost effectiveness.

Children with and without learning disabilities: a comparison of processes and outcomes following group counseling

This study compared outcomes and processes in counseling groups of an expressive-supportive modality for children with learning disabilities (LD) and without them (NLD). Participants were 266 students (ages 10-18), all referred for emotional, social, and behavioral difficulties; of these, 123 were identified with LD and 143 were not. There were 40 groups in all--20 with LD children and 20 with NLD. Outcome variables included adjustment, social competence, and academic achievements. Process variables included bonding, group functioning, and client behavior. Analyses were nested using mixed models. Results indicated no differences in outcomes or process variables between populations except for academic achievements; some between-group differences were found in the effect of processes on outcomes. It was concluded that children with LD may be successfully treated in expressive-supportive counseling groups for their emotional and social difficulties.