Practice tests for the MCA II's can be found on the following websites:

Reading Grade 7  ~ State Practice Test http://education.state.mn.us/mdeprod/groups/Assessment/documents/Instruction/008832.pdf

Reading Grade 8 ~ State Practice Test http://education.state.mn.us/mdeprod/groups/Assessment/documents/Instruction/008954.pdf

Math Grade 7 ~ State Practice Test http://education.state.mn.us/mdeprod/idcplg?IdcService=GET_FILE&dDocName=009207&RevisionSelectionMethod=latest&Rendition=primary

Math Grade 8 ~ State Practice Test http://education.state.mn.us/mdeprod/idcplg?IdcService=GET_FILE&dDocName=009211&RevisionSelectionMethod=latest&Rendition=primary

State Practice Test Site http://education.state.mn.us/mde/Accountability_Programs/Assessment_and_Testing/Assessments/MCA_II/MCA_II_Item_Samplers/index.html

Other Practice Test Sites http://communityed.stma.k12.mn.us/curriculum/testing/practice_tests.php

http://edinformatics.com/testing/testing.htm

*There is also a web site called Studyisland.com that has practice tests that you take on the computer.  It scores the work as you complete it and gives you the reason it is wrong.  The cost of this service is $49 per grade level and testing type (reading/math).