diff --git a/src/wp-admin/includes/class-wp-upgrader.php b/src/wp-admin/includes/class-wp-upgrader.php
index 544c641520..d88fc7de7b 100644
--- a/src/wp-admin/includes/class-wp-upgrader.php
+++ b/src/wp-admin/includes/class-wp-upgrader.php
@@ -2036,7 +2036,7 @@ class WP_Automatic_Updater {
 		 	 *
 		 	 * @since 3.8.0
 		 	 *
-		 	 * @param array $update_results The results of all updates attempted
+		 	 * @param array $update_results The results of all attempted updates.
 		 	 */
 			do_action( 'automatic_updates_complete', $this->update_results );
 		}
@@ -2446,13 +2446,14 @@ Thanks! -- The WordPress Team" );
 		 * @param array $email {
 		 *     Array of email arguments that will be passed to wp_mail().
 		 *
-		 *     @type string $to      The email recipient. An array of emails can be returned, as handled by wp_mail().
-		 *     @type string $subject The email's subject.
-		 *     @type string $body    The email message body.
-		 *     @type string $headers Any email headers, defaults to no headers.
+		 *     @type string $to      The email recipient. An array of emails can be returned,
+		 *                           as handled by wp_mail().
+		 *     @type string $subject Email subject.
+		 *     @type string $body    Email message body.
+		 *     @type string $headers Any email headers. Default empty.
 		 * }
-		 * @param int   $failures The number of failures encountered while upgrading
-		 * @param mixed $results  The results of all updates attempted
+		 * @param int   $failures The number of failures encountered while upgrading.
+		 * @param mixed $results  The results of all attempted updates.
 		 */
 		$email = apply_filters( 'automatic_updates_debug_email', $email, $failures, $this->update_results );
 
diff --git a/src/wp-admin/includes/dashboard.php b/src/wp-admin/includes/dashboard.php
index 510f935dd7..773ec5f8fa 100644
--- a/src/wp-admin/includes/dashboard.php
+++ b/src/wp-admin/includes/dashboard.php
@@ -311,7 +311,7 @@ function wp_network_dashboard_right_now() {
  *
  * @since 3.8.0
  *
- * @param string $error_msg Error message.
+ * @param string $error_msg Optional. Error message. Default false.
  */
 function wp_dashboard_quick_press( $error_msg = false ) {
 	global $post_ID;
@@ -545,7 +545,17 @@ function wp_dashboard_site_activity() {
  *
  * @since 3.8.0
  *
- * @param array $args
+ * @param array $args {
+ *     An array of query and display arguments.
+ *
+ *     @type int    $display Number of posts to display.
+ *     @type int    $max     Maximum number of posts to query.
+ *     @type string $status  Post status.
+ *     @type string $order   Designates ascending ('ASC') or descending ('DESC') order.
+ *     @type string $title   Section title.
+ *     @type string $id      The container id.
+ * }
+ * @return bool False if no posts were found. True otherwise.
  */
 function wp_dashboard_recent_posts( $args ) {
 	$query_args = array(
@@ -617,7 +627,8 @@ function wp_dashboard_recent_posts( $args ) {
  *
  * @since 3.8.0
  *
- * @param int $total_items
+ * @param int $total_items Optional. Number of comments to query. Default 5.
+ * @return bool False if no comments were found. True otherwise.
  */
 function wp_dashboard_recent_comments( $total_items = 5 ) {
 	global $wpdb;
@@ -843,6 +854,9 @@ function wp_dashboard_primary() {
  * Display the WordPress news feeds.
  *
  * @since 3.8.0
+ *
+ * @param string $widget_id Widget ID.
+ * @param array  $feeds     Array of RSS feeds.
  */
 function wp_dashboard_primary_output( $widget_id, $feeds ) {
 	foreach( $feeds as $type => $args ) {
diff --git a/src/wp-admin/includes/template.php b/src/wp-admin/includes/template.php
index 9ff2e0cd5b..076638262a 100644
--- a/src/wp-admin/includes/template.php
+++ b/src/wp-admin/includes/template.php
@@ -1976,9 +1976,13 @@ function _local_storage_notice() {
  *
  * @since 3.8.0
  * @param array $args {
- *     @type int    $rating The Rating to display, Expressed in a 0.5 rating increment, or a percentage.
- *     @type string $type   The format that the $rating is in. Valid values are 'rating' (default), or, 'percent'.
- *     @type int    $number The number of ratings which makes up this rating.
+ *     Optional. Array of star ratings arguments.
+ *
+ *     @type int    $rating The rating to display, expressed in either a 0.5 rating increment,
+ *                          or percentage. Default 0.
+ *     @type string $type   Format that the $rating is in. Valid values are 'rating' (default),
+ *                          or, 'percent'. Default 'rating'.
+ *     @type int    $number The number of ratings that makes up this rating. Default 0.
  * }
  */
 function wp_star_rating( $args = array() ) {
diff --git a/src/wp-admin/includes/theme.php b/src/wp-admin/includes/theme.php
index 9ed912c9ec..a3766c5b32 100644
--- a/src/wp-admin/includes/theme.php
+++ b/src/wp-admin/includes/theme.php
@@ -113,14 +113,14 @@ function theme_update_available( $theme ) {
 }
 
 /**
- * Retrieve the update link if there is an update for a theme available.
+ * Retrieve the update link if there is a theme update available.
  *
- * Will return a link, if there is an update available.
+ * Will return a link if there is an update available.
  *
  * @since 3.8.0
  *
- * @param object $theme Theme data object.
- * @return string|bool HTML for the update link, or False if no valid info was passed.
+ * @param WP_Theme $theme WP_Theme object.
+ * @return string|bool HTML for the update link, or false if invalid info was passed.
  */
 function get_theme_update_available( $theme ) {
 	static $themes_update;