A human-computer interaction researcher investigated the impact of a new AI-assisted autocomplete environment on developers' programming speed. The researcher recruited 120 software developers for the study.
The researcher assigned the first 60 developers who signed up for the study to Interface X (the experimental environment).
The researcher assigned the remaining 60 developers who signed up to Interface Y (the control environment, which uses standard autocomplete).
One way of improving the experimental design of this study would be to use random allocation. Explain how random allocation could have been carried out in this study.
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