diff --git a/intact/intact.py b/intact/intact.py
index 7e9c55a..5ee2932 100644
--- a/intact/intact.py
+++ b/intact/intact.py
@@ -143,7 +143,7 @@ def is_sorted(lst):
     return True
 
 
-def check_scramble(seqid, blast_rows):
+def is_scrambled(seqid, blast_rows):
     # HIV 5' region can easily map to its 3' region because they are identical.
     # Such a maping would not constitute a scramble, so we ignore the 5' region for this check.
     ignored_5_prime = [x for x in blast_rows if x.sstart > 622 and x.send > 622]
@@ -173,7 +173,7 @@ def check_scramble(seqid, blast_rows):
                                f"Sequence is {direction}-scrambled.")
 
 
-def check_nonhiv(seqid, blast_rows):
+def is_nonhiv(seqid, blast_rows):
     aligned_length = sum(abs(x.qend - x.qstart) + 1 for x in blast_rows)
     total_length = blast_rows[0].qlen if blast_rows else 1
     ratio = aligned_length / total_length
diff --git a/tests/test_nonhiv.py b/tests/test_nonhiv.py
index 10d4583..4f613ca 100644
--- a/tests/test_nonhiv.py
+++ b/tests/test_nonhiv.py
@@ -3,7 +3,7 @@
 import os
 
 import intact.intact as intact
-from intact.intact import check_scramble, check_nonhiv, IntactnessError
+from intact.intact import is_nonhiv, IntactnessError
 
 class BlastRow:
     def __init__(self, qstart, qend, qlen):
@@ -12,44 +12,44 @@ def __init__(self, qstart, qend, qlen):
         self.qlen = qlen
 
 
-def test_check_nonhiv_empty_blast_rows():
+def test_is_nonhiv_empty_blast_rows():
     blast_rows = []
-    result = check_nonhiv("id", blast_rows)
+    result = is_nonhiv("id", blast_rows)
     assert isinstance(result, IntactnessError)
     assert result.error == intact.NONHIV_ERROR
 
 
-def test_check_nonhiv_low_ratio():
+def test_is_nonhiv_low_ratio():
     blast_rows = [
         BlastRow(0, 100, 1000),
         BlastRow(200, 300, 1000),
         BlastRow(400, 500, 1000)
     ]
-    result = check_nonhiv("id", blast_rows)
+    result = is_nonhiv("id", blast_rows)
     assert isinstance(result, IntactnessError)
     assert result.error == intact.NONHIV_ERROR
 
 
-def test_check_nonhiv_high_ratio():
+def test_is_nonhiv_high_ratio():
     blast_rows = [
         BlastRow(0, 200, 1000),
         BlastRow(200, 400, 1000),
         BlastRow(400, 900, 1000)
     ]
-    assert check_nonhiv("id", blast_rows) is None
+    assert is_nonhiv("id", blast_rows) is None
 
 
-def test_check_nonhiv_high_ratio_reversed():
+def test_is_nonhiv_high_ratio_reversed():
     blast_rows = [
         BlastRow(0, 200, 1000),
         BlastRow(200, 400, 1000),
         BlastRow(900, 400, 1000)
     ]
-    assert check_nonhiv("id", blast_rows) is None
+    assert is_nonhiv("id", blast_rows) is None
 
 
-def test_check_nonhiv_single_blast_row():
+def test_is_nonhiv_single_blast_row():
     blast_rows = [BlastRow(0, 200, 1000)]
-    result = check_nonhiv("id", blast_rows)
+    result = is_nonhiv("id", blast_rows)
     assert isinstance(result, IntactnessError)
     assert result.error == intact.NONHIV_ERROR
diff --git a/tests/test_scramble.py b/tests/test_scramble.py
index 00371d8..83b7245 100644
--- a/tests/test_scramble.py
+++ b/tests/test_scramble.py
@@ -3,7 +3,7 @@
 import os
 
 import intact.intact as intact
-from intact.intact import check_scramble, check_nonhiv, IntactnessError
+from intact.intact import is_scrambled, is_nonhiv, IntactnessError
 
 @pytest.mark.parametrize("lst, expected", [
     ([1, 2, 3, 4, 5], True),
@@ -30,7 +30,7 @@ def test_is_sorted(lst, expected):
 #         print("\n\n\n")
 #         print("---------------------------")
 #         print(v[0].qseqid)
-#         print(intact.check_scramble(v))
+#         print(intact.is_scrambled(v))
 
 #     assert False
 
@@ -41,39 +41,39 @@ def __init__(self, sstart, send, qstart, sstrand):
         self.qstart = qstart
         self.sstrand = sstrand
 
-def test_check_scramble_no_alignment():
+def test_is_scrambled_no_alignment():
     # Test case where there is no alignment
     blast_rows = []
-    assert check_scramble("id", blast_rows) is None
+    assert is_scrambled("id", blast_rows) is None
 
-def test_check_scramble_internal_inversion():
+def test_is_scrambled_internal_inversion():
     # Test case where some parts of the sequence are aligned in forward direction
     # and some in reverse, indicating an internal inversion error.
     blast_rows = [
         BlastRow(sstart=900, send=910, qstart=5, sstrand="plus"),
         BlastRow(sstart=930, send=940, qstart=25, sstrand="minus"),
     ]
-    result = check_scramble("id", blast_rows)
+    result = is_scrambled("id", blast_rows)
     assert isinstance(result, IntactnessError)
     assert result.error == intact.INTERNALINVERSION_ERROR
 
-def test_check_scramble_plus_strand_sorted():
+def test_is_scrambled_plus_strand_sorted():
     # Test case where the direction is "plus" and the sstart values are sorted.
     blast_rows = [
         BlastRow(sstart=900, send=910, qstart=5, sstrand="plus"),
         BlastRow(sstart=930, send=940, qstart=25, sstrand="plus"),
     ]
-    assert check_scramble("id", blast_rows) is None
+    assert is_scrambled("id", blast_rows) is None
 
-def test_check_scramble_minus_strand_sorted():
+def test_is_scrambled_minus_strand_sorted():
     # Test case where the direction is "minus" and the send values are sorted in reverse order.
     blast_rows = [
         BlastRow(sstart=910, send=900, qstart=25, sstrand="minus"),
         BlastRow(sstart=940, send=930, qstart=5, sstrand="minus"),
     ]
-    assert check_scramble("id", blast_rows) is None
+    assert is_scrambled("id", blast_rows) is None
 
-def test_check_scramble_plus_strand_unsorted():
+def test_is_scrambled_plus_strand_unsorted():
     # Test case with mixed directions and inversions
     blast_rows = [
         BlastRow(sstart=700, send=700, qstart=99, sstrand="plus"),
@@ -81,11 +81,11 @@ def test_check_scramble_plus_strand_unsorted():
         BlastRow(sstart=920, send=930, qstart=45, sstrand="plus"),
         BlastRow(sstart=950, send=980, qstart=85, sstrand="plus"),
     ]
-    result = check_scramble("id", blast_rows)
+    result = is_scrambled("id", blast_rows)
     assert isinstance(result, IntactnessError)
     assert result.error == intact.SCRAMBLE_ERROR
 
-def test_check_scramble_plus_strand_unsorted_5prime():
+def test_is_scrambled_plus_strand_unsorted_5prime():
     # Test case with mixed directions and inversions
     blast_rows = [
         BlastRow(sstart=100, send=110, qstart=99, sstrand="plus"),
@@ -93,44 +93,44 @@ def test_check_scramble_plus_strand_unsorted_5prime():
         BlastRow(sstart=920, send=930, qstart=45, sstrand="plus"),
         BlastRow(sstart=950, send=980, qstart=85, sstrand="plus"),
     ]
-    assert check_scramble("id", blast_rows) == None
+    assert is_scrambled("id", blast_rows) == None
 
-def test_check_scramble_minus_strand_unsorted():
+def test_is_scrambled_minus_strand_unsorted():
     # Test case where the direction is "minus" but the send values are not sorted in reverse order.
     blast_rows = [
         BlastRow(sstart=910, send=900, qstart=5, sstrand="minus"),
         BlastRow(sstart=940, send=930, qstart=25, sstrand="minus"),
     ]
-    result = check_scramble("id", blast_rows)
+    result = is_scrambled("id", blast_rows)
     assert isinstance(result, IntactnessError)
     assert result.error == intact.SCRAMBLE_ERROR
 
-def test_check_scramble_mixed_direction():
+def test_is_scrambled_mixed_direction():
     # Test case where some rows have "plus" direction and some have "minus" direction.
     blast_rows = [
         BlastRow(sstart=900, send=910, qstart=5, sstrand="plus"),
         BlastRow(sstart=930, send=940, qstart=25, sstrand="minus"),
         BlastRow(sstart=950, send=990, qstart=45, sstrand="minus"),
     ]
-    result = check_scramble("id", blast_rows)
+    result = is_scrambled("id", blast_rows)
     assert isinstance(result, IntactnessError)
     assert result.error == intact.INTERNALINVERSION_ERROR
 
-def test_check_scramble_single_row_plus_strand():
+def test_is_scrambled_single_row_plus_strand():
     # Test case with a single row aligned in the "plus" strand
     blast_rows = [
         BlastRow(sstart=700, send=710, qstart=5, sstrand="plus"),
     ]
-    assert check_scramble("id", blast_rows) is None
+    assert is_scrambled("id", blast_rows) is None
 
-def test_check_scramble_single_row_minus_strand():
+def test_is_scrambled_single_row_minus_strand():
     # Test case with a single row aligned in the "minus" strand
     blast_rows = [
         BlastRow(sstart=900, send=910, qstart=5, sstrand="minus"),
     ]
-    assert check_scramble("id", blast_rows) is None
+    assert is_scrambled("id", blast_rows) is None
 
-def test_check_scramble_multiple_directions_and_inversions():
+def test_is_scrambled_multiple_directions_and_inversions():
     # Test case with mixed directions and inversions
     blast_rows = [
         BlastRow(sstart=900, send=910, qstart=5, sstrand="plus"),
@@ -139,6 +139,6 @@ def test_check_scramble_multiple_directions_and_inversions():
         BlastRow(sstart=850, send=880, qstart=85, sstrand="plus"),
         BlastRow(sstart=890, send=880, qstart=85, sstrand="minus"),
     ]
-    result = check_scramble("id", blast_rows)
+    result = is_scrambled("id", blast_rows)
     assert isinstance(result, IntactnessError)
     assert result.error == intact.INTERNALINVERSION_ERROR