In an experiment, people have to respond with indexes of their left and right hand whether a stimulus was a picture of a piece of furniture or a word describing a piece of furniture. You have 4...

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Extracted text: In an experiment, people have to respond with indexes of their left and right hand whether a stimulus was a picture of a piece of furniture or a word describing a piece of furniture. You have 4 conditions in that people get 4 blocks of trials, each block having a different backward masking of the stimulus. You want to avoid order effects for the conditions. In addition, because of brain lateralisation for language you want to rule out that responses to words are always made with the same hand, and want to have half of the participant respond with the right hand, the other half with the left. How many participants do you need to fully counterbalance this design? 8 64 48 32