Merge branch 'dev' of https://github.com/virtual-labs/exp-power-spect…

…rum-calculations-au into testing

experiment/posttest.json

@@ -1 +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"}]
+[{
+	"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"
+}]

experiment/pretest.json

@@ -1 +1,37 @@
-[{"question":"1. The brain electrical activity is represented as:","answers":{"a":"ECG Signals","b":"EMG Signals","c":"EEG Signals","d":"EOG Signals"},"correctAnswer":"c"},{"question":"2. The unwanted signals present in EEG signals is known as:","answers":{"a":"Signals","b":"Noise","c":"PSD","d":"None of the above"},"correctAnswer":"b"},{"question":"3. The EEG signal processing involves:","answers":{"a":"Data Acquisition","b":"Preprocessing","c":"Feature extraction","d":"All the above"},"correctAnswer":"d"},{"question":"4. EEG signals were measured in:","answers":{"a":"Volts","b":"Microvolts","c":"Hertz","d":"Millivolts"},"correctAnswer":"b"}]
+[{
+	"question": "1. The brain electrical activity is represented as:",
+	"answers": {
+		"a": "ECG Signals",
+		"b": "EMG Signals",
+		"c": "EEG Signals",
+		"d": "EOG Signals"
+	},
+	"correctAnswer": "c"
+}, {
+	"question": "2. The unwanted signals present in EEG signals is known as:",
+	"answers": {
+		"a": "Signals",
+		"b": "Noise",
+		"c": "PSD",
+		"d": "None of the above"
+	},
+	"correctAnswer": "b"
+}, {
+	"question": "3. The EEG signal processing involves:",
+	"answers": {
+		"a": "Data Acquisition",
+		"b": "Preprocessing",
+		"c": "Feature extraction",
+		"d": "All the above"
+	},
+	"correctAnswer": "d"
+}, {
+	"question": "4. EEG signals were measured in:",
+	"answers": {
+		"a": "Volts",
+		"b": "Microvolts",
+		"c": "Hertz",
+		"d": "Millivolts"
+	},
+	"correctAnswer": "b"
+}]