diff --git a/tests/validation/CL/ReduceMean.cpp b/tests/validation/CL/ReduceMean.cpp
index 1b7400b..036ea18 100644
--- a/tests/validation/CL/ReduceMean.cpp
+++ b/tests/validation/CL/ReduceMean.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2018-2019 ARM Limited.
+ * Copyright (c) 2018-2020 ARM Limited.
  *
  * SPDX-License-Identifier: MIT
  *
@@ -44,7 +44,7 @@
 {
 constexpr AbsoluteTolerance<float>   tolerance_f32(0.001f); /**< Tolerance value for comparing reference's output against implementation's output for 32-bit floating-point type */
 constexpr AbsoluteTolerance<float>   tolerance_f16(0.03f);  /**< Tolerance value for comparing reference's output against implementation's output for 16-bit floating-point type */
-constexpr AbsoluteTolerance<uint8_t> tolerance_qasymm8(1);  /**< Tolerance value for comparing reference's output against implementation's output for 8-bit asymmetric quantized type */
+constexpr AbsoluteTolerance<uint8_t> tolerance_qasymm8(2);  /**< Tolerance value for comparing reference's output against implementation's output for 8-bit asymmetric quantized type */
 
 const auto axis_keep = combine(framework::dataset::make("Axis", { Coordinates(0), Coordinates(1, 0), Coordinates(1, 2), Coordinates(0, 2), Coordinates(1, 3), Coordinates(0, 1, 2, 3) }),
                                framework::dataset::make("KeepDims", { true }));
diff --git a/tests/validation/NEON/ReduceMean.cpp b/tests/validation/NEON/ReduceMean.cpp
index 6d0caf7..210c367 100644
--- a/tests/validation/NEON/ReduceMean.cpp
+++ b/tests/validation/NEON/ReduceMean.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2018-2019 ARM Limited.
+ * Copyright (c) 2018-2020 ARM Limited.
  *
  * SPDX-License-Identifier: MIT
  *
@@ -46,7 +46,7 @@
 #ifdef __ARM_FEATURE_FP16_VECTOR_ARITHMETIC
 constexpr AbsoluteTolerance<float> tolerance_f16(0.03f);   /**< Tolerance value for comparing reference's output against implementation's output for 16-bit floating-point type */
 #endif                                                     // __ARM_FEATURE_FP16_VECTOR_ARITHMETIC
-constexpr AbsoluteTolerance<uint8_t> tolerance_qasymm8(1); /**< Tolerance value for comparing reference's output against implementation's output for 8-bit asymmetric quantized type */
+constexpr AbsoluteTolerance<uint8_t> tolerance_qasymm8(2); /**< Tolerance value for comparing reference's output against implementation's output for 8-bit asymmetric quantized type */
 
 const auto axis_keep = combine(framework::dataset::make("Axis", { Coordinates(0), Coordinates(1, 0), Coordinates(1, 2), Coordinates(0, 2), Coordinates(1, 3), Coordinates(0, 1, 2, 3) }),
                                framework::dataset::make("KeepDims", { true }));
diff --git a/tests/validation/NEON/ReductionOperation.cpp b/tests/validation/NEON/ReductionOperation.cpp
index 3a7f707..93f1a80 100644
--- a/tests/validation/NEON/ReductionOperation.cpp
+++ b/tests/validation/NEON/ReductionOperation.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2019 ARM Limited.
+ * Copyright (c) 2017-2020 ARM Limited.
  *
  * SPDX-License-Identifier: MIT
  *
@@ -58,9 +58,9 @@
 
 const auto QuantizationInfos = framework::dataset::make("QuantizationInfo",
 {
-    QuantizationInfo(1.f / 128, -10),
-    QuantizationInfo(1.f / 64, -5),
-    QuantizationInfo(1.f / 32, -2)
+    QuantizationInfo(1.f / 128, 10),
+    QuantizationInfo(1.f / 64, 5),
+    QuantizationInfo(1.f / 32, 2)
 });
 
 const auto Axises = framework::dataset::make("Axis",
@@ -127,7 +127,7 @@
 using NEReductionOperationQuantizedFixture = ReductionOperationQuantizedFixture<Tensor, Accessor, NEReductionOperation, T>;
 
 TEST_SUITE(QASYMM8)
-FIXTURE_DATA_TEST_CASE(RunSmall, NEReductionOperationQuantizedFixture<uint8_t>, framework::DatasetMode::PRECOMMIT,
+FIXTURE_DATA_TEST_CASE(RunSmall, NEReductionOperationQuantizedFixture<uint8_t>, framework::DatasetMode::ALL,
                        combine(combine(combine(combine(combine(datasets::Small4DShapes(), framework::dataset::make("DataType", DataType::QASYMM8)), Axises),
                                                ReductionOperations),
                                        QuantizationInfos),
@@ -136,15 +136,6 @@
     // Validate output
     validate(Accessor(_target), _reference, tolerance_qasymm8);
 }
-FIXTURE_DATA_TEST_CASE(RunLarge, NEReductionOperationQuantizedFixture<uint8_t>, framework::DatasetMode::NIGHTLY,
-                       combine(combine(combine(combine(combine(datasets::Large4DShapes(), framework::dataset::make("DataType", DataType::QASYMM8)), Axises),
-                                               ReductionOperations),
-                                       QuantizationInfos),
-                               KeepDims))
-{
-    // Validate output
-    validate(Accessor(_target), _reference, tolerance_qasymm8);
-}
 TEST_SUITE_END() // QASYMM8
 
 TEST_SUITE_END() // ReductionOperation
diff --git a/tests/validation/reference/ReductionOperation.cpp b/tests/validation/reference/ReductionOperation.cpp
index 330a3b8..9c2c8ee 100644
--- a/tests/validation/reference/ReductionOperation.cpp
+++ b/tests/validation/reference/ReductionOperation.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2019 ARM Limited.
+ * Copyright (c) 2017-2020 ARM Limited.
  *
  * SPDX-License-Identifier: MIT
  *
@@ -277,7 +277,7 @@
 template <>
 SimpleTensor<uint8_t> reduction_operation(const SimpleTensor<uint8_t> &src, const TensorShape &dst_shape, unsigned int axis, ReductionOperation op)
 {
-    if(src.data_type() == DataType::QASYMM8 && op != ReductionOperation::MEAN_SUM)
+    if(src.data_type() == DataType::QASYMM8)
     {
         SimpleTensor<float> src_f = convert_from_asymmetric(src);
         SimpleTensor<float> dst_f = reference::reduction_operation<float, float>(src_f, dst_shape, axis, op);