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Who and when
Blacker et al. (2014)
Method
Laboratory experiment
Aim
To investigate the effect of videogames on the capacity of VWM
Participants
39 male undergraduate students (~20 years of age)
Procedure
Participants were assigned to an action game group and a control group
Both groups played their video game one hour per day for 30 days
They were then tested on the VWM
Findings
People who played the action games significantly improved VWM capacity compared to the control.
Conclusion
Action video games can help improve the capacity of VWM over a long period of time.
Strengths
High internal validity because of the experimental group and control group
Quantitative data
Limitations
Small sample size, hard to generalize to a broader population
Only looked at short-term effects