I am developing a reading lesson plan template using a Google spreadsheet. I am stuck! I used the following formula:
=query(A2:C;"select A where B='"&Plans!A9:B9&"' AND C='"&Plans!H2&"'")
to populate drop-lists of education standards. All my data validation criteria seems to be correct, but I cannot get data to populate my 3rd drop-list. Instead I get the message 'Invalid cell contents validation'
My spreadsheet can be viewed at https://docs.google.com/spreadsheet/ccc?key=0AmawmBcNyfAbdEs0WU5NYktYcTQyVUhZZ0hhcXdlN1E&usp=sharing