[
    {
        "id": "validation_Public_Health_1",
        "question_type": "multiple-choice",
        "answer": "C",
        "all_choices": [
            "A",
            "B",
            "C",
            "D"
        ],
        "index2ans": {
            "A": "tr>tb",
            "B": "tr<tb",
            "C": "tr=tb",
            "D": "tr$\\ne $tb"
        },
        "response": "D"
    },
    {
        "id": "validation_Public_Health_2",
        "question_type": "multiple-choice",
        "answer": "A",
        "all_choices": [
            "A",
            "B",
            "C",
            "D"
        ],
        "index2ans": {
            "A": "1.70",
            "B": "2.50",
            "C": "3.20",
            "D": "4.80"
        },
        "response": "A"
    },
    {
        "id": "validation_Public_Health_3",
        "question_type": "multiple-choice",
        "answer": "A",
        "all_choices": [
            "A",
            "B",
            "C",
            "D"
        ],
        "index2ans": {
            "A": "Incidence of hepatitis A",
            "B": "Prevalence of hepatitis A",
            "C": "Secondary attack rate of hepatitis A",
            "D": "Survival rate of hepatitis A"
        },
        "response": "C"
    },
    {
        "id": "validation_Public_Health_4",
        "question_type": "multiple-choice",
        "answer": "D",
        "all_choices": [
            "A",
            "B",
            "C",
            "D"
        ],
        "index2ans": {
            "A": "some viruses",
            "B": "some bacteria",
            "C": "some protozoa",
            "D": "some insects"
        },
        "response": "C"
    },
    {
        "id": "validation_Public_Health_5",
        "question_type": "multiple-choice",
        "answer": "C",
        "all_choices": [
            "A",
            "B",
            "C",
            "D"
        ],
        "index2ans": {
            "A": "53.83",
            "B": "87.09",
            "C": "57.48",
            "D": "67.83"
        },
        "response": "A"
    },
    {
        "id": "validation_Public_Health_6",
        "question_type": "multiple-choice",
        "answer": "B",
        "all_choices": [
            "A",
            "B",
            "C",
            "D"
        ],
        "index2ans": {
            "A": "Independent samples t test",
            "B": "Fisher's Exact test ",
            "C": "Kappa ",
            "D": "McNemar's test"
        },
        "response": "D"
    },
    {
        "id": "validation_Public_Health_7",
        "question_type": "multiple-choice",
        "answer": "A",
        "all_choices": [
            "A",
            "B",
            "C",
            "D"
        ],
        "index2ans": {
            "A": "Medical institutions were the main source of reported adverse reactions.",
            "B": "Chemical drugs caused the highest rate of adverse drug reactions in the province.",
            "C": "Adverse reactions caused by Biological products need not be a concern.",
            "D": "The province has a low incidence of serious adverse reactions."
        },
        "response": "D"
    },
    {
        "id": "validation_Public_Health_8",
        "question_type": "multiple-choice",
        "answer": "D",
        "all_choices": [
            "A",
            "B",
            "C",
            "D"
        ],
        "index2ans": {
            "A": "100%",
            "B": "94.8%",
            "C": "94.6%",
            "D": "88.1%"
        },
        "response": "B"
    },
    {
        "id": "validation_Public_Health_9",
        "question_type": "multiple-choice",
        "answer": "A",
        "all_choices": [
            "A",
            "B",
            "C",
            "D"
        ],
        "index2ans": {
            "A": "0.93",
            "B": "0.98",
            "C": "0.75",
            "D": "0.49"
        },
        "response": "A"
    },
    {
        "id": "validation_Public_Health_10",
        "question_type": "multiple-choice",
        "answer": "A",
        "all_choices": [
            "A",
            "B",
            "C",
            "D"
        ],
        "index2ans": {
            "A": "200/100,000 person years",
            "B": "300/100,000 person years",
            "C": "100/100,000 person years",
            "D": "50/100,000 person years"
        },
        "response": "B"
    },
    {
        "id": "validation_Public_Health_11",
        "question_type": "multiple-choice",
        "answer": "D",
        "all_choices": [
            "A",
            "B",
            "C",
            "D"
        ],
        "index2ans": {
            "A": "PAR",
            "B": "AR",
            "C": "RR",
            "D": "OR"
        },
        "response": "C"
    },
    {
        "id": "validation_Public_Health_12",
        "question_type": "multiple-choice",
        "answer": "A",
        "all_choices": [
            "A",
            "B",
            "C",
            "D"
        ],
        "index2ans": {
            "A": "80%",
            "B": "20%",
            "C": "60%",
            "D": "40%"
        },
        "response": "A"
    },
    {
        "id": "validation_Public_Health_13",
        "question_type": "multiple-choice",
        "answer": "B",
        "all_choices": [
            "A",
            "B",
            "C",
            "D"
        ],
        "index2ans": {
            "A": "Cold chicken",
            "B": "Potato salad",
            "C": "Egg sandwiches",
            "D": "Fruit pie and cream"
        },
        "response": "A"
    },
    {
        "id": "validation_Public_Health_14",
        "question_type": "multiple-choice",
        "answer": "B",
        "all_choices": [
            "A",
            "B",
            "C",
            "D"
        ],
        "index2ans": {
            "A": "18",
            "B": "16",
            "C": "20",
            "D": "10"
        },
        "response": "D"
    },
    {
        "id": "validation_Public_Health_15",
        "question_type": "multiple-choice",
        "answer": "C",
        "all_choices": [
            "A",
            "B",
            "C",
            "D"
        ],
        "index2ans": {
            "A": "1 to 2",
            "B": "2 to 1",
            "C": "1 to 1",
            "D": "50%"
        },
        "response": "B"
    },
    {
        "id": "validation_Public_Health_16",
        "question_type": "multiple-choice",
        "answer": "A",
        "all_choices": [
            "A",
            "B",
            "C",
            "D",
            "E"
        ],
        "index2ans": {
            "A": "(1.29~40.37)",
            "B": "(3.48~22.56)",
            "C": "(0.51~4.68)",
            "D": "(1.28~10.78)",
            "E": "(1.16~13.02)"
        },
        "response": "B"
    },
    {
        "id": "validation_Public_Health_17",
        "question_type": "multiple-choice",
        "answer": "D",
        "all_choices": [
            "A",
            "B",
            "C",
            "D"
        ],
        "index2ans": {
            "A": "48.0",
            "B": "48.0-25.4=22.6",
            "C": "48.0/25.4=1.89",
            "D": "(48.0-25.4) /48.0"
        },
        "response": "B"
    },
    {
        "id": "validation_Public_Health_18",
        "question_type": "multiple-choice",
        "answer": "C",
        "all_choices": [
            "A",
            "B",
            "C"
        ],
        "index2ans": {
            "A": "E. coli",
            "B": "Staph aureus",
            "C": "E. coli and Staph aureus"
        },
        "response": "C"
    },
    {
        "id": "validation_Public_Health_19",
        "question_type": "multiple-choice",
        "answer": "B",
        "all_choices": [
            "A",
            "B",
            "C",
            "D"
        ],
        "index2ans": {
            "A": "0.444",
            "B": "0.556",
            "C": "1.799",
            "D": "2.716"
        },
        "response": "A"
    },
    {
        "id": "validation_Public_Health_20",
        "question_type": "multiple-choice",
        "answer": "B",
        "all_choices": [
            "A",
            "B",
            "C",
            "D"
        ],
        "index2ans": {
            "A": "11.6",
            "B": "53.0/100000",
            "C": "63.0/100000",
            "D": "0.91"
        },
        "response": "B"
    },
    {
        "id": "validation_Public_Health_21",
        "question_type": "multiple-choice",
        "answer": "C",
        "all_choices": [
            "A",
            "B",
            "C",
            "D"
        ],
        "index2ans": {
            "A": "51.4%",
            "B": "52.4%",
            "C": "3.1%",
            "D": "10.8%"
        },
        "response": "C"
    },
    {
        "id": "validation_Public_Health_22",
        "question_type": "multiple-choice",
        "answer": "A",
        "all_choices": [
            "A",
            "B",
            "C",
            "D"
        ],
        "index2ans": {
            "A": "cardiovascular and cerebrovascular diseases",
            "B": "malignant neoplasms",
            "C": "The threat is just as great.",
            "D": "The threat cannot be judged."
        },
        "response": "A"
    },
    {
        "id": "validation_Public_Health_23",
        "question_type": "multiple-choice",
        "answer": "A",
        "all_choices": [
            "A",
            "B",
            "C",
            "D"
        ],
        "index2ans": {
            "A": "0.69",
            "B": "0.98",
            "C": "0.02",
            "D": "0.94"
        },
        "response": "A"
    },
    {
        "id": "validation_Public_Health_24",
        "question_type": "multiple-choice",
        "answer": "D",
        "all_choices": [
            "A",
            "B",
            "C",
            "D"
        ],
        "index2ans": {
            "A": "0.24%",
            "B": "0.40%",
            "C": "0.32%",
            "D": "0.44%"
        },
        "response": "A"
    },
    {
        "id": "validation_Public_Health_25",
        "question_type": "multiple-choice",
        "answer": "D",
        "all_choices": [
            "A",
            "B",
            "C",
            "D"
        ],
        "index2ans": {
            "A": "A/(A+C)",
            "B": "B/(B+D)",
            "C": "C/(A+C)",
            "D": "D/(B+D)"
        },
        "response": "A"
    },
    {
        "id": "validation_Public_Health_26",
        "question_type": "multiple-choice",
        "answer": "C",
        "all_choices": [
            "A",
            "B",
            "C",
            "D"
        ],
        "index2ans": {
            "A": "point prevalence and period prevalence",
            "B": "mortality rate and case fatality rate",
            "C": "cumulative incidence and incidence density",
            "D": "PYLL and DALY"
        },
        "response": "C"
    },
    {
        "id": "validation_Public_Health_27",
        "question_type": "multiple-choice",
        "answer": "A",
        "all_choices": [
            "A",
            "B",
            "C",
            "D"
        ],
        "index2ans": {
            "A": "5/19",
            "B": "5/18",
            "C": "5/17",
            "D": "5/20"
        },
        "response": "A"
    },
    {
        "id": "validation_Public_Health_28",
        "question_type": "multiple-choice",
        "answer": "C",
        "all_choices": [
            "A",
            "B",
            "C",
            "D"
        ],
        "index2ans": {
            "A": "5.48",
            "B": "6.98",
            "C": "12.96",
            "D": "15.95"
        },
        "response": "C"
    },
    {
        "id": "validation_Public_Health_29",
        "question_type": "multiple-choice",
        "answer": "B",
        "all_choices": [
            "A",
            "B",
            "C",
            "D"
        ],
        "index2ans": {
            "A": "4.52",
            "B": "2.0",
            "C": "1.26",
            "D": "3.45"
        },
        "response": "A"
    },
    {
        "id": "validation_Public_Health_30",
        "question_type": "multiple-choice",
        "answer": "A",
        "all_choices": [
            "A",
            "B",
            "C",
            "D"
        ],
        "index2ans": {
            "A": "1.76",
            "B": "14",
            "C": "12.14",
            "D": "8.67"
        },
        "response": "A"
    }
]