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While an interesting correlation, this is an observational study rather than an intervention study. The next step would be to find harsh parents who don't read with toddlers then encourage half of them to start reading with their toddlers.  Avenger I am Iron man Marvel shirt Until then, you might just as well say "Harsh parents are less likely to read with their toddlers" as you are to say "People who read with their toddlers are less likely to be harsh parents."
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Yes, I'm thinking that the type of parent who is inclined to spend time with their child reading is also the same type to take the time to think of alternative non harsh parenting methods, and probably enjoy peace more. If you can't take the time to read to your child,  Avenger I am Iron man Marvel shirt you're probably not going to take the time to lecture, explain, etc, when a nice smack will get you the immediate results. This has nothing to do with reading, its just indicative of mind frame.
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