Dependent Variable:Int_Politics Source Type Ill Sum of df Squares Mean Square F Sig. Corrected Model 5525.200a 5 1105.040 61.190 Intercept 138816.600 138816.600 7686.727 Gender 29.400 29.400 1.628 207 Edu_Level 5328.100 2 2664.050 147.517 .000 Gender * Edu_Level 167.700 2 83.850 4.643 .014 Error 975.200 54 18.059 Total 145317.000 60 Corrected Total 6500.400 59 a. R Squared = .850(Adjusted R Squared = .836) Based on this source table, which kind of design did the researchers use? (Hint: dona t forget to look at the df for the main effects! The df is always k - 1) 2 X 2 design O 2 X 3 design O 2 X 2 X 2 design 2 X 2 X 3 design