diff --git a/activemodel/lib/active_model/validations/absence.rb b/activemodel/lib/active_model/validations/absence.rb
index 75bf6555784849acc50f7eadbbcee278bf3221bd..4618f46e30a3a8e87167a5cba5e8a7f63242c1ea 100644
--- a/activemodel/lib/active_model/validations/absence.rb
+++ b/activemodel/lib/active_model/validations/absence.rb
@@ -22,7 +22,7 @@ module HelperMethods
       #
       # There is also a list of default options supported by every validator:
       # +:if+, +:unless+, +:on+, +:allow_nil+, +:allow_blank+, and +:strict+.
-      # See <tt>ActiveModel::Validation#validates</tt> for more information
+      # See <tt>ActiveModel::Validations#validates</tt> for more information
       def validates_absence_of(*attr_names)
         validates_with AbsenceValidator, _merge_attributes(attr_names)
       end
diff --git a/activemodel/lib/active_model/validations/acceptance.rb b/activemodel/lib/active_model/validations/acceptance.rb
index e11005b9baa66d0d67e1c97cf5c32d254d567757..a26c37daa54a96c33e3b18f1747adad846263278 100644
--- a/activemodel/lib/active_model/validations/acceptance.rb
+++ b/activemodel/lib/active_model/validations/acceptance.rb
@@ -95,7 +95,7 @@ module HelperMethods
       #
       # There is also a list of default options supported by every validator:
       # +:if+, +:unless+, +:on+, +:allow_nil+, +:allow_blank+, and +:strict+.
-      # See <tt>ActiveModel::Validation#validates</tt> for more information.
+      # See <tt>ActiveModel::Validations#validates</tt> for more information.
       def validates_acceptance_of(*attr_names)
         validates_with AcceptanceValidator, _merge_attributes(attr_names)
       end
diff --git a/activemodel/lib/active_model/validations/confirmation.rb b/activemodel/lib/active_model/validations/confirmation.rb
index 33ca6f6946dc2505902227277f370a223762f343..03585bf5e14aa59c243f7400b45b9eb8ec6b397a 100644
--- a/activemodel/lib/active_model/validations/confirmation.rb
+++ b/activemodel/lib/active_model/validations/confirmation.rb
@@ -69,7 +69,7 @@ module HelperMethods
       #
       # There is also a list of default options supported by every validator:
       # +:if+, +:unless+, +:on+, +:allow_nil+, +:allow_blank+, and +:strict+.
-      # See <tt>ActiveModel::Validation#validates</tt> for more information
+      # See <tt>ActiveModel::Validations#validates</tt> for more information
       def validates_confirmation_of(*attr_names)
         validates_with ConfirmationValidator, _merge_attributes(attr_names)
       end
diff --git a/activemodel/lib/active_model/validations/exclusion.rb b/activemodel/lib/active_model/validations/exclusion.rb
index 82a1893823b4b22ccfb3165cb6a2b64d09cf3984..b7156ba802edb810fa42e8fec60da462cd1afb2d 100644
--- a/activemodel/lib/active_model/validations/exclusion.rb
+++ b/activemodel/lib/active_model/validations/exclusion.rb
@@ -38,7 +38,7 @@ module HelperMethods
       #
       # There is also a list of default options supported by every validator:
       # +:if+, +:unless+, +:on+, +:allow_nil+, +:allow_blank+, and +:strict+.
-      # See <tt>ActiveModel::Validation#validates</tt> for more information
+      # See <tt>ActiveModel::Validations#validates</tt> for more information
       def validates_exclusion_of(*attr_names)
         validates_with ExclusionValidator, _merge_attributes(attr_names)
       end
diff --git a/activemodel/lib/active_model/validations/format.rb b/activemodel/lib/active_model/validations/format.rb
index fa183885ab4a2ebafe144da53019fb81f804d50d..b4b8d9f33cd8cca20bc9bcea2f9128b42baf06da 100644
--- a/activemodel/lib/active_model/validations/format.rb
+++ b/activemodel/lib/active_model/validations/format.rb
@@ -104,7 +104,7 @@ module HelperMethods
       #
       # There is also a list of default options supported by every validator:
       # +:if+, +:unless+, +:on+, +:allow_nil+, +:allow_blank+, and +:strict+.
-      # See <tt>ActiveModel::Validation#validates</tt> for more information
+      # See <tt>ActiveModel::Validations#validates</tt> for more information
       def validates_format_of(*attr_names)
         validates_with FormatValidator, _merge_attributes(attr_names)
       end
diff --git a/activemodel/lib/active_model/validations/inclusion.rb b/activemodel/lib/active_model/validations/inclusion.rb
index 0ea6012a5d64ba7e5fb3699625a8936f58b2621b..c6c5bae649975eba6ebf6b35364fda41f9869843 100644
--- a/activemodel/lib/active_model/validations/inclusion.rb
+++ b/activemodel/lib/active_model/validations/inclusion.rb
@@ -36,7 +36,7 @@ module HelperMethods
       #
       # There is also a list of default options supported by every validator:
       # +:if+, +:unless+, +:on+, +:allow_nil+, +:allow_blank+, and +:strict+.
-      # See <tt>ActiveModel::Validation#validates</tt> for more information
+      # See <tt>ActiveModel::Validations#validates</tt> for more information
       def validates_inclusion_of(*attr_names)
         validates_with InclusionValidator, _merge_attributes(attr_names)
       end
diff --git a/activemodel/lib/active_model/validations/length.rb b/activemodel/lib/active_model/validations/length.rb
index 739f8190cc14610ea3ebf12d614d7dadb36e58cf..940c58f3a750c43f5b0b1a9a2030c2db50cff248 100644
--- a/activemodel/lib/active_model/validations/length.rb
+++ b/activemodel/lib/active_model/validations/length.rb
@@ -110,7 +110,7 @@ module HelperMethods
       #
       # There is also a list of default options supported by every validator:
       # +:if+, +:unless+, +:on+ and +:strict+.
-      # See <tt>ActiveModel::Validation#validates</tt> for more information
+      # See <tt>ActiveModel::Validations#validates</tt> for more information
       def validates_length_of(*attr_names)
         validates_with LengthValidator, _merge_attributes(attr_names)
       end
diff --git a/activemodel/lib/active_model/validations/numericality.rb b/activemodel/lib/active_model/validations/numericality.rb
index 2297faaee53dcd3a8d6b86c849829637f81dd8d9..4bfc402069fc2583959b0b963937c374a79a120c 100644
--- a/activemodel/lib/active_model/validations/numericality.rb
+++ b/activemodel/lib/active_model/validations/numericality.rb
@@ -134,7 +134,7 @@ module HelperMethods
       #
       # There is also a list of default options supported by every validator:
       # +:if+, +:unless+, +:on+, +:allow_nil+, +:allow_blank+, and +:strict+ .
-      # See <tt>ActiveModel::Validation#validates</tt> for more information
+      # See <tt>ActiveModel::Validations#validates</tt> for more information
       #
       # The following checks can also be supplied with a proc or a symbol which
       # corresponds to a method:
diff --git a/activemodel/lib/active_model/validations/presence.rb b/activemodel/lib/active_model/validations/presence.rb
index 0c11cf426598327179a7f7dfc86267697b6b5359..6e8a434bbe1078a4da728ce9d24f7a6bbdf93b16 100644
--- a/activemodel/lib/active_model/validations/presence.rb
+++ b/activemodel/lib/active_model/validations/presence.rb
@@ -29,7 +29,7 @@ module HelperMethods
       #
       # There is also a list of default options supported by every validator:
       # +:if+, +:unless+, +:on+, +:allow_nil+, +:allow_blank+, and +:strict+.
-      # See <tt>ActiveModel::Validation#validates</tt> for more information
+      # See <tt>ActiveModel::Validations#validates</tt> for more information
       def validates_presence_of(*attr_names)
         validates_with PresenceValidator, _merge_attributes(attr_names)
       end
diff --git a/activemodel/lib/active_model/validations/with.rb b/activemodel/lib/active_model/validations/with.rb
index e3f7a9bcb26e61c7b8430b81a87375400c1ea917..9227dd06ff9b7b3467503d84e9902a5ec3139796 100644
--- a/activemodel/lib/active_model/validations/with.rb
+++ b/activemodel/lib/active_model/validations/with.rb
@@ -61,7 +61,7 @@ module ClassMethods
       #   The method, proc or string should return or evaluate to a +true+ or
       #   +false+ value.
       # * <tt>:strict</tt> - Specifies whether validation should be strict.
-      #   See <tt>ActiveModel::Validation#validates!</tt> for more information.
+      #   See <tt>ActiveModel::Validations#validates!</tt> for more information.
       #
       # If you pass any additional configuration options, they will be passed
       # to the class and available as +options+:
diff --git a/activerecord/lib/active_record/validations/presence.rb b/activerecord/lib/active_record/validations/presence.rb
index ca5eda2f8422f83d0a8e4898249f0a9f64bded9c..7cfd55f51612de8c4f17201771700108bbdf1059 100644
--- a/activerecord/lib/active_record/validations/presence.rb
+++ b/activerecord/lib/active_record/validations/presence.rb
@@ -57,7 +57,7 @@ module ClassMethods
       #   or <tt>unless: Proc.new { |user| user.signup_step <= 2 }</tt>). The method,
       #   proc or string should return or evaluate to a +true+ or +false+ value.
       # * <tt>:strict</tt> - Specifies whether validation should be strict.
-      #   See ActiveModel::Validation#validates! for more information.
+      #   See ActiveModel::Validations#validates! for more information.
       def validates_presence_of(*attr_names)
         validates_with PresenceValidator, _merge_attributes(attr_names)
       end