diff --git a/lib/scholar/covariance/ledoit_wolf.ex b/lib/scholar/covariance/ledoit_wolf.ex
index a80c50e4..a9debc24 100644
--- a/lib/scholar/covariance/ledoit_wolf.ex
+++ b/lib/scholar/covariance/ledoit_wolf.ex
@@ -13,7 +13,7 @@ defmodule Scholar.Covariance.LedoitWolf do
   defstruct [:covariance, :shrinkage, :location]
 
   opts_schema = [
-    assume_centered: [
+    assume_centered?: [
       default: false,
       type: :boolean,
       doc: """
@@ -93,7 +93,7 @@ defmodule Scholar.Covariance.LedoitWolf do
 
       iex> key = Nx.Random.key(0)
       iex> {x, _new_key} = Nx.Random.multivariate_normal(key, Nx.tensor([0.0, 0.0, 0.0]), Nx.tensor([[3.0, 2.0, 1.0], [1.0, 2.0, 3.0], [1.3, 1.0, 2.2]]), shape: {10}, type: :f32)
-      iex> cov = Scholar.Covariance.LedoitWolf.fit(x, assume_centered: true)
+      iex> cov = Scholar.Covariance.LedoitWolf.fit(x, assume_centered?: true)
       iex> cov.covariance
       #Nx.Tensor<
         f32[3][3]
@@ -110,7 +110,7 @@ defmodule Scholar.Covariance.LedoitWolf do
   end
 
   defnp fit_n(x, opts) do
-    {x, location} = Scholar.Covariance.Utils.center(x, opts[:assume_centered])
+    {x, location} = Scholar.Covariance.Utils.center(x, opts[:assume_centered?])
 
     {covariance, shrinkage} =
       ledoit_wolf(x)
diff --git a/lib/scholar/covariance/shrunk_covariance.ex b/lib/scholar/covariance/shrunk_covariance.ex
index f17ac8cc..770c1ca7 100644
--- a/lib/scholar/covariance/shrunk_covariance.ex
+++ b/lib/scholar/covariance/shrunk_covariance.ex
@@ -8,7 +8,7 @@ defmodule Scholar.Covariance.ShrunkCovariance do
   defstruct [:covariance, :location]
 
   opts_schema = [
-    assume_centered: [
+    assume_centered?: [
       default: false,
       type: :boolean,
       doc: """
@@ -94,7 +94,7 @@ defmodule Scholar.Covariance.ShrunkCovariance do
             """
     end
 
-    {x, location} = Scholar.Covariance.Utils.center(x, opts[:assume_centered])
+    {x, location} = Scholar.Covariance.Utils.center(x, opts[:assume_centered?])
 
     covariance =
       Scholar.Covariance.Utils.empirical_covariance(x)
diff --git a/test/scholar/covariance/ledoit_wolf_test.exs b/test/scholar/covariance/ledoit_wolf_test.exs
index 27e1893c..d7906b07 100644
--- a/test/scholar/covariance/ledoit_wolf_test.exs
+++ b/test/scholar/covariance/ledoit_wolf_test.exs
@@ -40,7 +40,7 @@ defmodule Scholar.Covariance.LedoitWolfTest do
     )
   end
 
-  test "fit test - :assume_centered is true" do
+  test "fit test - :assume_centered? is true" do
     key = key()
 
     {x, _new_key} =
@@ -52,7 +52,7 @@ defmodule Scholar.Covariance.LedoitWolfTest do
         type: :f32
       )
 
-    model = LedoitWolf.fit(x, assume_centered: true)
+    model = LedoitWolf.fit(x, assume_centered?: true)
 
     assert_all_close(
       model.covariance,
diff --git a/test/scholar/covariance/shrunk_covariance_test.exs b/test/scholar/covariance/shrunk_covariance_test.exs
index b8792efe..e11bc676 100644
--- a/test/scholar/covariance/shrunk_covariance_test.exs
+++ b/test/scholar/covariance/shrunk_covariance_test.exs
@@ -38,7 +38,7 @@ defmodule Scholar.Covariance.ShrunkCovarianceTest do
     )
   end
 
-  test "fit test - :assume_centered is true" do
+  test "fit test - :assume_centered? is true" do
     key = key()
 
     {x, _new_key} =
@@ -50,7 +50,7 @@ defmodule Scholar.Covariance.ShrunkCovarianceTest do
         type: :f32
       )
 
-    model = ShrunkCovariance.fit(x, assume_centered: true)
+    model = ShrunkCovariance.fit(x, assume_centered?: true)
 
     assert_all_close(
       model.covariance,