added .gitignore and removed uneeded cache files

.gitignore

+
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.pyc
+*.pyo
+*.pyd
+*.so
+
+# Backup files
+*.bak
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# Virtual Environment files
+.env
+.venv
+env/
+venv/
+ENV/
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# OS generated files
+.DS_Store
+.directory
+.gdb_history
+ehthumbs.db
+Icon?
+*.orig
+old
+Thumbs.db

README.txt

 Stroop - measuring reaction times to incongruent stimuli
-------------------------------------------------------------------
-
-The experiment: 
-    
-    In this task subjects must report the colour of the letters spelling each
-    word, but letters themselves also spell a colour name and this may be the
-    same or different to the colour of the letters. Stroop (1935) reports that
-    reaction times are slower the letters spell a colour that is incongruent
-    with the colour of the letters, indicating a compulsory automated reading of
-    the word.
-
-Analysing your data:
-
-    After you run the study, look in the data/ folder next to where the 
-    experiment was saved. There will be an xlsx file there that can be opened
-    with Microsoft Excel or similar spreadsheet package. Each row represents
-    one condition (trial type) and each column is one variable of your experiment
-    or type of data collected. 
-    Take the average of the resp.mean_rt column for the 3 congruent conditions 
-    and compare them with the 3 incongruent conditions. In most cases the 
-    incongruent conditions will have larger reactions times. 
-
-Notes: 
-    
-    This version of the Stroop effect is a very simple experiment, good for 
-    explaining how the PsychoPy Builder interface works with minimal clutter. 
-    You could (as a challenge) add practice trials and feedback if you liked...
-    or you could go to the StroopExtended demo and see how to do it there!
\ No newline at end of file
+==========================================================
+
+The experiment
+--------------------
+
+In this task subjects must report the colour of the letters spelling each
+word, but letters themselves also spell a colour name and this may be the
+same or different to the colour of the letters. Stroop (1935) reports that
+reaction times are slower the letters spell a colour that is incongruent
+with the colour of the letters, indicating a compulsory automated reading of
+the word.
+
+Analysing your data
+--------------------
+
+After you run the study, look in the data/ folder next to where the
+experiment was saved. There will be an xlsx file there that can be opened
+with Microsoft Excel or similar spreadsheet package. Each row represents
+one condition (trial type) and each column is one variable of your experiment
+or type of data collected.
+Take the average of the resp.mean_rt column for the 3 congruent conditions
+and compare them with the 3 incongruent conditions. In most cases the
+incongruent conditions will have larger reactions times.
+
+Notes
+--------------------
+
+This version of the Stroop effect is a very simple experiment, good for
+explaining how the PsychoPy Builder interface works with minimal clutter.
+You could (as a challenge) add practice trials and feedback if you liked...
+or you could go to the StroopExtended demo and see how to do it there!
+
+References
+--------------------
+
+Stroop, J. R. (1935). Studies of interference in serial verbal reactions. Journal of Experimental Psychology, 18(6), 643-662.