diff --git a/app/models/skip.rb b/app/models/skip.rb
index 596055b..009bb0e 100644
--- a/app/models/skip.rb
+++ b/app/models/skip.rb
@@ -3,4 +3,6 @@ class Skip < ActiveRecord::Base
   belongs_to :question
   belongs_to :prompt
   has_one :appearance, :as => :answerable
+
+  default_scope :conditions => {:valid_record => true}
 end
diff --git a/app/models/vote.rb b/app/models/vote.rb
index 57054fc..bbdda5d 100644
--- a/app/models/vote.rb
+++ b/app/models/vote.rb
@@ -18,6 +18,8 @@ class Vote < ActiveRecord::Base
   named_scope :with_voter_ids, lambda { |*args| {:conditions => {:voter_id=> args.first }} }
   named_scope :active, :include => :choice, :conditions => { 'choices.active' => true }
 
+  default_scope :conditions => {:valid_record => true}
+
   serialize :tracking
 
   after_create :update_winner_choice, :update_loser_choice
diff --git a/db/migrate/20100719030739_add_valid_flags_to_votes_and_skips.rb b/db/migrate/20100719030739_add_valid_flags_to_votes_and_skips.rb
new file mode 100644
index 0000000..c121bf4
--- /dev/null
+++ b/db/migrate/20100719030739_add_valid_flags_to_votes_and_skips.rb
@@ -0,0 +1,15 @@
+class AddValidFlagsToVotesAndSkips < ActiveRecord::Migration
+  def self.up
+	  add_column :votes, :valid_record, :boolean, :default => true
+	  add_column :votes, :validity_information, :string
+	  add_column :skips, :valid_record, :boolean, :default => true
+	  add_column :skips, :validity_information, :string
+  end
+
+  def self.down
+	  remove_column :votes, :valid_record
+	  remove_column :votes, :validity_information
+	  remove_column :skips, :valid_record
+	  remove_column :skips, :validity_information
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index f772103..b933107 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -9,7 +9,7 @@
 #
 # It's strongly recommended to check this file into your version control system.
 
-ActiveRecord::Schema.define(:version => 20100716121029) do
+ActiveRecord::Schema.define(:version => 20100719030739) do
 
   create_table "appearances", :force => true do |t|
     t.integer  "voter_id"
@@ -179,6 +179,8 @@ ActiveRecord::Schema.define(:version => 20100716121029) do
     t.datetime "updated_at"
     t.string   "skip_reason"
     t.string   "missing_response_time_exp", :default => ""
+    t.boolean  "valid_record",              :default => true
+    t.string   "validity_information"
   end
 
   add_index "skips", ["prompt_id"], :name => "index_skips_on_prompt_id"
@@ -224,6 +226,8 @@ ActiveRecord::Schema.define(:version => 20100716121029) do
     t.integer  "time_viewed"
     t.integer  "appearance_id"
     t.string   "missing_response_time_exp", :default => ""
+    t.boolean  "valid_record",              :default => true
+    t.string   "validity_information"
   end
 
   add_index "votes", ["voter_id"], :name => "index_votes_on_voter_id"
--
libgit2 0.21.2