Paired Samples Statistics Std. Error Mean N Std. Deviation Mean Pair 1 Control Group (1) 1.00 7 .000 .000 Digit-span number of 7.71 7 .951 .360 symbols_intial test (g1) Pair 2 Control Group (1) 1.00 8 .000 .000 Digit-span number of 6.50 8 1.195 .423 symbols after control expsoure test (g1) Pair 3 Math Group (2) 2.00 Digit-span number of 6.25 88 .000 .000 1.282 .453 symbols_intial test (g2) Pair 4 Math Group (2) 2.00 7 .000 .000 Digit-span number of 7.57 7 1.272 .481 symbols after control expsoure test (g2)