In Table 3.1 the reaction-time data are broken down separately according to whether we are looking at the same stimulus or whether the stimuli are mirror images of one another. The data can be found by going this book’s website and obtaining the data labeled as Tab3-1.dat. Using SPSS or similar software, calculate the mean reaction time under the two conditions.
Does it take longer to respond to stimuli that are mirror images? This question requires some thought. You can either go to the menu labeled Data and ask it to split the data on the basis of the variable “Stimulus” and then use the Analyze/Descriptive Statistics/Descriptives analysis, or you can not split the data but go to Analyze/Descriptive Statistics/Explore and enter the variable “Stimulus” in the Factor List.

  • CreatedSeptember 22, 2015
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