Not exactly. EV training is a special process where you only battle one species of pokemon over and over again. After doing this quite a few times, your pokemon will have gained stat points known as EVs. For every 4 EVs you gain, +1 more than regular is added when you level up/when you reach level 100. For example, a Modest Magnezone (+ Special Attack, - Attack) would normally have 158 Attack on level 100 (If it has the lowest Attack possible, that is), but if you give it 4 Attack EVs while levelling, it would have 159 Attack on level 100.
Do you understand this?
And no, EV training isn't boring. -_- At least not in my opinion.