diff --git a/measurements_analysis/tests/data/sample_measurements.json b/measurements_analysis/tests/data/sample_measurements.json
new file mode 100644
index 0000000..d508295
--- /dev/null
+++ b/measurements_analysis/tests/data/sample_measurements.json
@@ -0,0 +1,26 @@
+[
+  {
+    "spacing_mm": 0.0,
+    "hf_amplitude": 1.0,
+    "spike_outlier_rate": 0.05,
+    "levenes_test_p": 0.97
+  },
+  {
+    "spacing_mm": 0.5,
+    "hf_amplitude": 0.89,
+    "spike_outlier_rate": 0.06,
+    "levenes_test_p": 0.82
+  },
+  {
+    "spacing_mm": 1.0,
+    "hf_amplitude": 0.74,
+    "spike_outlier_rate": 0.09,
+    "levenes_test_p": 0.67
+  },
+  {
+    "spacing_mm": 2.0,
+    "hf_amplitude": 0.52,
+    "spike_outlier_rate": 0.14,
+    "levenes_test_p": 0.43
+  }
+]
\ No newline at end of file