Table 2 Relevance, Simplicity, Clarity, Item Content Validity Index (I-CVI), and Content Validity Ratio (CVR) Values of the PSQ-39
Items | Relevance | Simplicity | Clarity | I-CVI | CVR |
|---|---|---|---|---|---|
Headache | 1 | 1 | 1 | 1 | 1 |
Dizziness | 1 | 0.86 | 0.86 | 0.91 | 1 |
Fainting | 1 | 0.86 | 0.86 | 0.91 | 1 |
Nausea | 1 | 1 | 1 | 1 | 1 |
Rustling sound in ears | 1 | 1 | 1 | 1 | 1 |
Confusion or feelings of unreality | 1 | 0.86 | 0.86 | 0.91 | 1 |
Upset stomach | 1 | 0.86 | 0.86 | 0.91 | 1 |
Abdominal pain | 1 | 0.86 | 0.86 | 0.91 | 1 |
Bowel cramps | 1 | 0.86 | 0.86 | 0.91 | 1 |
Bloated stomach | 1 | 0.86 | 0.86 | 0.91 | 1 |
Feeling low on energy | 1 | 0.86 | 0.86 | 0.91 | 1 |
Feeling tired | 1 | 0.86 | 0.86 | 0.91 | 1 |
Feeling exhausted | 1 | 0.86 | 0.86 | 0.91 | 1 |
Not feeling fit | 1 | 0.86 | 0.86 | 0.91 | 1 |
Chest pain | 1 | 0.86 | 0.86 | 0.91 | 1 |
Tightness around the chest | 1 | 0.86 | 0.86 | 0.91 | 1 |
Irregular heart beat | 1 | 0.86 | 0.86 | 0.91 | 1 |
Pounding heart | 1 | 0.86 | 0.86 | 0.91 | 1 |
Painful stings in the heart area | 1 | 0.86 | 0.86 | 0.91 | 1 |
Shortness of breath | 1 | 1 | 1 | 1 | 1 |
Inability to take a deep breath | 1 | 1 | 1 | 1 | 1 |
Sudden fast or deep breathing | 1 | 0.86 | 0.86 | 0.91 | 1 |
Muscle pain | 1 | 0.86 | 0.86 | 0.91 | 1 |
Pain in bones | 1 | 0.86 | 0.86 | 0.91 | 1 |
Back pain | 1 | 1 | 1 | 1 | 1 |
Pain in neck | 1 | 1 | 1 | 1 | 1 |
Feelings of muscle weakness | 1 | 1 | 1 | 1 | 1 |
Stiffness of fingers | 1 | 1 | 1 | 1 | 1 |
Trembling of hands | 1 | 1 | 1 | 1 | 1 |
Excessive sweating | 1 | 1 | 1 | 1 | 1 |
Hot or cold flashes | 1 | 1 | 1 | 1 | 1 |
Tingling feeling in fingers, arms, or legs | 1 | 1 | 1 | 1 | 1 |
Dry mouth | 1 | 1 | 1 | 1 | 1 |
Lump in throat | 1 | 1 | 1 | 1 | 1 |
Having trouble swallowing | 1 | 0.86 | 0.86 | 0.91 | 1 |
Sore throat | 1 | 1 | 1 | 1 | 1 |
Forgetfulness | 1 | 0.86 | 0.86 | 0.91 | 1 |
Difficulty concentrating | 1 | 0.86 | 0.86 | 0.91 | 1 |
Unclear or foggy thoughts | 1 | 0.86 | 0.86 | 0.91 | 1 |