Merge pull request #5 from virtual-labs/testing

Migrated pretest and posttest questions from **".js"** format to **."json"** format and updated .yml file.

.github/workflows/deployment-script.yml

@@ -18,10 +18,10 @@ jobs:
             node-version: '12'
             check-latest: true
     - run: |
-        git clone https://github.com/virtual-labs/ph3-lab-mgmt
+        git clone --depth=1 https://github.com/virtual-labs/ph3-lab-mgmt
         cd ph3-lab-mgmt
         npm install
-        node exp.js
+        npm run build-exp
         cd ../
         git config --local user.email "admin@vlabs.ac.in"
         git config --local user.name "vleadadmin"

experiment/posttest.json

@@ -0,0 +1,46 @@
+[{
+	"question": "1. Algorithm used for converting time series EEG data to power spectral density:",
+	"answers": {
+		"a": "ICA",
+		"b": "Bandpass filter",
+		"c": "IR filter",
+		"d": "FFT"
+	},
+	"correctAnswer": "d"
+}, {
+	"question": "2. Power spectrum density indicates:",
+	"answers": {
+		"a": "Power distribution of EEG data series in time domain",
+		"b": "Power distribution of EEG series in the frequency domain",
+		"c": "Coherence of EEG series",
+		"d": "None of the above"
+	},
+	"correctAnswer": "b"
+}, {
+	"question": "3. Unit for PSD measurement in EEG data:",
+	"answers": {
+		"a": "µVolts square per dB",
+		"b": " µVolts sqaure per Hz",
+		"c": "Volts sqaure per sec",
+		"d": "µVolts"
+	},
+	"correctAnswer": "b"
+}, {
+	"question": "4. Which of the following is a real function of frequency ?",
+	"answers": {
+		"a": "PSD",
+		"b": "FFT",
+		"c": "PCA",
+		"d": "None of the above"
+	},
+	"correctAnswer": "a"
+}, {
+	"question": "5. Power spectrum density method used for feature extraction of raw EEG signal",
+	"answers": {
+		"a": "Welch’s Method",
+		"b": "K-nearest neighbors classifier",
+		"c": "Bartlett method",
+		"d": "None of the above"
+	},
+	"correctAnswer": "a"
+}]