So this question:Warning-used as the name of the previous parameter rather than as part of the selector

answers part of my problem, but I really don't want anything to change inside this method and I'm a bit confused on how this works. Here's the whole method:

-(void) SetRightWrong:(sqzWord *)word: (int) rightWrong
{
if (self.mastered==nil) {
    self.mastered = [[NSMutableArray alloc]initWithCapacity:10];
}

//if right change number right
if (rightWrong == 1) {
    word.numberCorrect++;
     //if 3 right move to masterd list

    [self.onDeck removeObject:word];
    if(word.numberCorrect >= 3 )
    {
        [self.mastered addObject:word];


    }
    else
    {
         //if not 3 right move to end of ondeck
        [self.onDeck addObject:word];

    }


}
else if(rightWrong == 0)
{
    //if wrong remove one from number right unless 0
    NSUInteger i;

    i=[self.onDeck indexOfObject:word];

    word = [self.onDeck objectAtIndex:i];

    if (word.numberCorrect >0) {
         word.numberCorrect--;
    }
}
}

The warning I am getting is: 'word' used as the name of the previous parameter than as part of the selector.