mikemoi
29 lines
945 B
TypeScript
29 lines
945 B
TypeScript
const dimensions = {
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machiavellianism: [1, 2, 3, 4, 5, 6, 7, 8, 9],
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narcissism: [10, 11, 12, 13, 14, 15, 16, 17, 18],
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psychopathy: [19, 20, 21, 22, 23, 24, 25, 26, 27],
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} as const;
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const reverseItems = new Set([4, 8, 11, 15, 17, 20, 25]);
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function scoreItem(answers: string[], item: number) {
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const raw = Number(answers[item - 1] || 1);
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return reverseItems.has(item) ? 6 - raw : raw;
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}
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function average(scores: number[]) {
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return scores.reduce((sum, score) => sum + score, 0) / scores.length;
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}
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function dimensionAverage(answers: string[], items: readonly number[]) {
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return average(items.map((item) => scoreItem(answers, item)));
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}
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export function calculateDarkTriadResults(answers: string[]) {
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return {
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machiavellianism: dimensionAverage(answers, dimensions.machiavellianism),
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narcissism: dimensionAverage(answers, dimensions.narcissism),
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psychopathy: dimensionAverage(answers, dimensions.psychopathy),
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};
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}
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