columna API reference - v0.3.0
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    Interface ItemAnalysisResult

    interface ItemAnalysisResult {
        alpha: number;
        correlation: number[][];
        items: {
            adjustedItemTotalCorr: number;
            alphaIfDeleted: number;
            itemTotalCorr: number;
            mean: number;
            name: string;
            sd: number;
            squaredMultipleCorr: number;
        }[];
        n: number;
        nItems: number;
        standardizedAlpha: number;
        test: "item analysis";
        total: { mean: number; sd: number };
    }
    Index
    alpha correlation items n nItems standardizedAlpha test total
    alpha: number
    correlation: number[][]

    Correlation matrix of the items.

    items: {
        adjustedItemTotalCorr: number;
        alphaIfDeleted: number;
        itemTotalCorr: number;
        mean: number;
        name: string;
        sd: number;
        squaredMultipleCorr: number;
    }[]
    n: number
    nItems: number
    standardizedAlpha: number

    Standardized α (based on the average inter-item correlation).

    test: "item analysis"
    total: { mean: number; sd: number }

    Total-score statistics.

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