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The effectiveness of working memory training with individuals with intellectual disabilities - a meta-analytic review.

Danielsson H, Zottarel V, Palmqvist L, Lanfranchi S - Front Psychol (2015)

Bottom Line: The results reveal a significant, but small, overall pretest-posttest effect size (ES) for WM training for individuals with ID compared to controls.We conclude that even if there is an overall effect of WM training, a mixed WM approach appears to cause this effect.Even if the results were promising, more studies are needed to better understand how to design an effective WM intervention for this group and to understand if, and how, these short-term effects remain over time and transfer to everyday activities.

View Article: PubMed Central - PubMed

Affiliation: Department of Behavioural Sciences and Learning, Linköping University Linköping, Sweden ; The Swedish Institute for Disability Research Linköping, Sweden.

ABSTRACT
Working memory (WM) training has been increasingly popular in the last years. Previous studies have shown that individuals with intellectual disabilities (ID) have low WM capacity and therefore would benefit by this type of intervention. The aim of this study was to investigate the effect of WM and cognitive training for individuals with ID. The effects reported in previous studies have varied and therefore a meta-analysis of articles in the major databases was conducted. Inclusion criteria included to have a pretest-posttest design with a training group and a control group and to have measures of WM or short-term memory. Ten studies with 28 comparisons were included. The results reveal a significant, but small, overall pretest-posttest effect size (ES) for WM training for individuals with ID compared to controls. A mixed WM approach, including both verbal and visuo-spatial components working mainly on strategies, was the only significant training type with a medium ES. The most commonly reported training type, visuo-spatial WM training, was performed in 60 percent of the included comparisons and had a non-significant ES close to zero. We conclude that even if there is an overall effect of WM training, a mixed WM approach appears to cause this effect. Given the few studies included and the different characteristics of the included studies, interpretations should be done with caution. However, different types of interventions appear to have different effects. Even if the results were promising, more studies are needed to better understand how to design an effective WM intervention for this group and to understand if, and how, these short-term effects remain over time and transfer to everyday activities.

No MeSH data available.


Related in: MedlinePlus

Details about the literature search method and the criteria for inclusion and exclusion of studies.
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Figure 1: Details about the literature search method and the criteria for inclusion and exclusion of studies.

Mentions: Figure 1 shows details about the literature search method and the criteria for inclusion and exclusion of studies.


The effectiveness of working memory training with individuals with intellectual disabilities - a meta-analytic review.

Danielsson H, Zottarel V, Palmqvist L, Lanfranchi S - Front Psychol (2015)

Details about the literature search method and the criteria for inclusion and exclusion of studies.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4538918&req=5

Figure 1: Details about the literature search method and the criteria for inclusion and exclusion of studies.
Mentions: Figure 1 shows details about the literature search method and the criteria for inclusion and exclusion of studies.

Bottom Line: The results reveal a significant, but small, overall pretest-posttest effect size (ES) for WM training for individuals with ID compared to controls.We conclude that even if there is an overall effect of WM training, a mixed WM approach appears to cause this effect.Even if the results were promising, more studies are needed to better understand how to design an effective WM intervention for this group and to understand if, and how, these short-term effects remain over time and transfer to everyday activities.

View Article: PubMed Central - PubMed

Affiliation: Department of Behavioural Sciences and Learning, Linköping University Linköping, Sweden ; The Swedish Institute for Disability Research Linköping, Sweden.

ABSTRACT
Working memory (WM) training has been increasingly popular in the last years. Previous studies have shown that individuals with intellectual disabilities (ID) have low WM capacity and therefore would benefit by this type of intervention. The aim of this study was to investigate the effect of WM and cognitive training for individuals with ID. The effects reported in previous studies have varied and therefore a meta-analysis of articles in the major databases was conducted. Inclusion criteria included to have a pretest-posttest design with a training group and a control group and to have measures of WM or short-term memory. Ten studies with 28 comparisons were included. The results reveal a significant, but small, overall pretest-posttest effect size (ES) for WM training for individuals with ID compared to controls. A mixed WM approach, including both verbal and visuo-spatial components working mainly on strategies, was the only significant training type with a medium ES. The most commonly reported training type, visuo-spatial WM training, was performed in 60 percent of the included comparisons and had a non-significant ES close to zero. We conclude that even if there is an overall effect of WM training, a mixed WM approach appears to cause this effect. Given the few studies included and the different characteristics of the included studies, interpretations should be done with caution. However, different types of interventions appear to have different effects. Even if the results were promising, more studies are needed to better understand how to design an effective WM intervention for this group and to understand if, and how, these short-term effects remain over time and transfer to everyday activities.

No MeSH data available.


Related in: MedlinePlus