Psychology 305 Lab

E-Merge and E-DataAid worksheet

 

Please work in pairs, and hand in just one worksheet.

 

Names: __________________________   and _______________________________

 

A.    Get out the "Merging Data files" guidebook that you copied from the library.

B.    Merge the data files from the experiment that you ran last week by following all the steps in the guidebook.

 

When you are done, answer the following questions:

 

1. How many data files did you merge?

                                                                                                                                   

                                                                                                                                   

                                                                                                                                   

2. What information is in the Quick Reference Window?

                                                                                                                                   

                                                                                                                                   

                                                                                                                                   

3. What information does file name of each data file tell you?

                                                                                                                                   

                                                                                                                                   

                                                                                                                                   

4. After you merged these data files, suppose you ran another 5 subjects. How would you add the data from these subjects to the previous merge file?

                                                                                                                                   

                                                                                                                                   

                                                                                                                                   

C.    Get out the "Preparing Data for analysis" guidebook that you copied from the library.

D.   Take the merged data set that you created and prepare it for statistical analysis by following all the steps in the guidebook.

 

When you are done, answer the following questions:

1. What was the point of picking the filter Stimlus.ACC=1?

                                                                                                                                   

                                                                                                                                   

                                                                                                                                   

2. Suppose you were interested in getting the mean accuracy for each condition, rather than the mean reaction time. What do you need to change in the filter?

                                                                                                                                   

                                                                                                                                   

                                                                                                                                   

3. Suppose again that you were interested in getting the mean accuracy for each condition, rather than the mean reaction time. What would you do differently in the Analyze window? (i.e., would you change the columns, rows, or data, and if so, how?)

                                                                                                                                   

                                                                                                                                   

                                                                                                                                   

4. When you export a table of means to Statview, will other statistical programs probably be able to read that table of means file?

                                                                                                                                   

                                                                                                                                   

                                                                                                                                   

Hand this worksheet in to your lab instructor.