Dungeon Roller progress

So I'm not entirely at a loss here. I've got the main Character model and three other models associated with Character: Statistic, Safe and Combat. Here's what the Character screen looks like:

Once you click through on a character, this is what you see:

Now say you want to click through on Statistics:

But here's the problem. The individual characters are all using the same instance of the Statistic model. I haven't worked with the other models yet, but I'm assuming this would be true for them as well. How do I need to edit the code so each Character has a separate Statistic, instead of the same Statistic being shared?

Here's my code from the routes.rb file:

DungeonRoller::Application.routes.draw do
  resources :combats

  resources :saves

  resources :statistics

  resources :characters do
    resources :combats
    resources :saves
    resources :statistics
  end

And some code from the models:

class Character < ActiveRecord::Base   has_many :statistics   has_many :combats   has_many :saves end And each of the other models have: class Statistic < ActiveRecord::Base

  belongs_to :character

end

I thought associating these as has_many would solve the problem, but apparently I was wrong. Any input on this would be greatly appreciated!