"bandwagon effect" meaning in English

{
  "etymology_text": "bandwagon + effect",
  "head_templates": [
    {
      "args": {
        "1": "?"
      },
      "expansion": "bandwagon effect",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Entries with translation boxes",
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          "source": "w"
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        {
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        {
          "kind": "other",
          "name": "Pages with entries",
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          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Polish translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Turkish translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Sociology",
          "orig": "en:Sociology",
          "parents": [
            "Social sciences",
            "Sciences",
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "the observation that people often do or believe what they think many other people do."
      ],
      "id": "en-bandwagon_effect-en-noun-tnJdUH0N",
      "links": [
        [
          "sociology",
          "sociology"
        ]
      ],
      "raw_glosses": [
        "(sociology) the observation that people often do or believe what they think many other people do."
      ],
      "related": [
        {
          "word": "herd behaviour"
        },
        {
          "word": "herding instinct"
        }
      ],
      "topics": [
        "human-sciences",
        "sciences",
        "social-science",
        "sociology"
      ],
      "translations": [
        {
          "code": "pl",
          "lang": "Polish",
          "sense": "bandwagon effect",
          "tags": [
            "masculine"
          ],
          "word": "owczy pęd"
        },
        {
          "code": "tr",
          "lang": "Turkish",
          "sense": "bandwagon effect",
          "word": "sürü etkisi"
        },
        {
          "code": "tr",
          "lang": "Turkish",
          "sense": "bandwagon effect",
          "word": "bando etkisi"
        }
      ]
    }
  ],
  "word": "bandwagon effect"
}

{
  "etymology_text": "bandwagon + effect",
  "head_templates": [
    {
      "args": {
        "1": "?"
      },
      "expansion": "bandwagon effect",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "herd behaviour"
    },
    {
      "word": "herding instinct"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English nouns with unknown or uncertain plurals",
        "Entries with translation boxes",
        "Pages with 1 entry",
        "Pages with entries",
        "Terms with Polish translations",
        "Terms with Turkish translations",
        "en:Sociology"
      ],
      "glosses": [
        "the observation that people often do or believe what they think many other people do."
      ],
      "links": [
        [
          "sociology",
          "sociology"
        ]
      ],
      "raw_glosses": [
        "(sociology) the observation that people often do or believe what they think many other people do."
      ],
      "topics": [
        "human-sciences",
        "sciences",
        "social-science",
        "sociology"
      ]
    }
  ],
  "translations": [
    {
      "code": "pl",
      "lang": "Polish",
      "sense": "bandwagon effect",
      "tags": [
        "masculine"
      ],
      "word": "owczy pęd"
    },
    {
      "code": "tr",
      "lang": "Turkish",
      "sense": "bandwagon effect",
      "word": "sürü etkisi"
    },
    {
      "code": "tr",
      "lang": "Turkish",
      "sense": "bandwagon effect",
      "word": "bando etkisi"
    }
  ],
  "word": "bandwagon effect"
}