Found that when my skids/kids did that they did it so that one of us would just step in and do it. I wouldn't do anything and let her take her time.

I have a step daughter that is 15 and the same way. She will take 2 hours to clean her bedroom that had only a little bit of clothes in the floor. She washed dishes one night and it took her 3 hours. I just make her aware that she is wasting her own time. She can not be on the computer, wii, or even go outside to be with her friends until she gets them done. If she takes all night then at bedtime she goes to bed with the other kids her normal bedtime and has to do it again the next day. When she is ready to do something funs he will get done. Some kids are like this.

if u are not done doin this correctly by____oclock then u will miss out on _____.something skid wants to do or see or whatever. it will work 98% of the time. some people say that they dont like to reward for things like this so maybe if take the allowance away if u know that they are draggin butt to annoy u

Part of it is probably personality, or their work ethic. At her age, I'd emphasize that she needs to work quick and efficient to be successful in the workplace. It's amazing how many people do not have the ability to do that. My first job was at 16 at a movie theater, and you can bet that we ran around like crazy during the busy times. It may seem like a dull job but even that required us to work quickly and efficiently!

I agree with others though that it's her own time she's wasting. Make sure there isn't anything distracting she can do while washing dishes (such as watching TV) so she only has that task to focus on. She's probably hoping if she half-asses it, someone else (you!) will just take over out of annoyance.

I'd also try completely ignoring also...at this age it can be attention-seeking behavior (god knows why, but so many kids at the high school level have learned to seek negative attention just to get ANY!). It's almost a playing the victim, woe-is-me act.