diff --git a/conditional_fields.module b/conditional_fields.module
index 56b65b5..66bd455 100644
--- a/conditional_fields.module
+++ b/conditional_fields.module
@@ -672,7 +672,40 @@ function conditional_fields_dependent_validate($element, &$form_state, $form) {
   $dependent = $element[$element['#language']];
 
   // Check if this field's dependencies were triggered.
-  if (conditional_fields_evaluate_dependencies($dependent, $form, $form_state)) {
+  $triggered = conditional_fields_evaluate_dependencies($dependent, $form, $form_state);
+  $parents = $dependent['#parents'];
+  $error_key = array_shift($parents);
+  $error_key .= '[' . implode('][', $parents) . ']';
+
+  if ($evaluated_dependencies = conditional_fields_evaluate_dependencies($dependent, $form, $form_state, FALSE)) {
+    foreach ($evaluated_dependencies[$dependent['#field_name']] as $operator) {
+      foreach ($operator as $state => $result) {
+        if (($result && $state == 'required' && $triggered) || (!$result && $state == '!required' && !$triggered)) {
+          $input_state = drupal_array_get_nested_value($form_state['values'], $dependent['#parents']);
+
+          if (isset($dependent['#field_name'])) {
+            $field = field_info_field($dependent['#field_name']);
+            $input_state = _field_filter_items($field, $input_state);
+          }
+
+          if (empty($input_state)) {
+            $title = '';
+            if (isset($dependent['#title'])) {
+              $title = $dependent['#title'];
+            }
+            else {
+              if (isset($dependent[0]['#title'])) {
+                $title = $dependent[0]['#title'];
+              }
+            }
+            form_set_error($error_key, t('The !title field is required', array('!title' => $title)));
+          }
+        }
+      }
+    }
+  }
+
+  if ($triggered) {
     return;
   }
 
@@ -683,7 +716,7 @@ function conditional_fields_dependent_validate($element, &$form_state, $form) {
 
   // Optional behavior: reset the field to its default values.
   // Default values are always valid, so it's safe to skip validation.
-  if (!empty($element['#conditional_fields_reset_if_untriggered'])) {
+  if (!empty($element['#conditional_fields_reset_if_untriggered']) && !$triggered) {
     $form_state_addition['reset'] = TRUE;
   }
 
@@ -751,10 +784,7 @@ function conditional_fields_form_validate($form, &$form_state) {
       continue;
     }
 
-    if (empty($field['reset'])) {
-      unset($field_values_location[$dependent['#field_name']]);
-    }
-    else {
+    if (!empty($field['reset'])) {
       $dependent_info = field_form_get_state($dependent['#field_parents'], $dependent['#field_name'], $dependent['#language'], $form_state);
       $field_values_location[$dependent['#field_name']][$dependent['#language']] = field_get_default_value($dependent_info['instance']['entity_type'], NULL, $dependent_info['field'], $dependent_info['instance'], $dependent['#language']);
     }
@@ -994,7 +1024,7 @@ function conditional_fields_evaluate_grouping($groups) {
  * @param $dependent
  *   The field form element in the current language.
  */
-function conditional_fields_evaluate_dependencies($dependent, $form, $form_state) {
+function conditional_fields_evaluate_dependencies($dependent, $form, $form_state, $grouping = TRUE) {
   $dependencies = $form['#conditional_fields'][$dependent['#field_name']]['dependees'];
   $evaluated_dependees = array();
 
@@ -1016,10 +1046,18 @@ function conditional_fields_evaluate_dependencies($dependent, $form, $form_state
       $values = $values[$dependee_parent[$dependee]['#language']];
     }
 
-    $evaluated_dependees[$dependent['#field_name']][$dependency['options']['grouping']][] = conditional_fields_evaluate_dependency('edit', $values, $dependency['options']);
+    if ($grouping) {
+      $evaluated_dependees[$dependent['#field_name']][$dependency['options']['grouping']][] = conditional_fields_evaluate_dependency('edit', $values, $dependency['options']);
+    }
+    else {
+      $evaluated_dependees[$dependent['#field_name']][$dependency['options']['grouping']][$dependency['options']['state']] = conditional_fields_evaluate_dependency('edit', $values, $dependency['options']);
+    }
   }
 
-  return conditional_fields_evaluate_grouping($evaluated_dependees[$dependent['#field_name']]);
+  if ($grouping) {
+    return conditional_fields_evaluate_grouping($evaluated_dependees[$dependent['#field_name']]);
+  }
+  return $evaluated_dependees;
 }
 
 /**