"Bradley effect" meaning in English

{
  "etymology_text": "Named after Los Angeles Mayor Tom Bradley, an African-American who lost the 1982 California governor's race despite being ahead in voter polls going into the elections.",
  "forms": [
    {
      "form": "the Bradley effect",
      "tags": [
        "canonical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "def": "1"
      },
      "expansion": "the Bradley effect",
      "name": "en-proper noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "American English",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Politics",
          "orig": "en:Politics",
          "parents": [
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A theory concerning observed discrepancies between opinion polls and election outcomes, according to which some white voters who intend to vote for a white candidate may tell pollsters that they are undecided or likely to vote for a non-white candidate, for fear of being accused of racism."
      ],
      "id": "en-Bradley_effect-en-name-XY-iBk03",
      "links": [
        [
          "politics",
          "politics"
        ],
        [
          "discrepancies",
          "discrepancy"
        ],
        [
          "opinion poll",
          "opinion poll"
        ],
        [
          "election",
          "election"
        ],
        [
          "outcome",
          "outcome"
        ],
        [
          "white",
          "white"
        ],
        [
          "candidate",
          "candidate"
        ],
        [
          "racism",
          "racism"
        ]
      ],
      "raw_glosses": [
        "(US, politics) A theory concerning observed discrepancies between opinion polls and election outcomes, according to which some white voters who intend to vote for a white candidate may tell pollsters that they are undecided or likely to vote for a non-white candidate, for fear of being accused of racism."
      ],
      "synonyms": [
        {
          "word": "Wilder effect"
        }
      ],
      "tags": [
        "US"
      ],
      "topics": [
        "government",
        "politics"
      ],
      "wikipedia": [
        "Bradley effect"
      ]
    }
  ],
  "word": "Bradley effect"
}

{
  "etymology_text": "Named after Los Angeles Mayor Tom Bradley, an African-American who lost the 1982 California governor's race despite being ahead in voter polls going into the elections.",
  "forms": [
    {
      "form": "the Bradley effect",
      "tags": [
        "canonical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "def": "1"
      },
      "expansion": "the Bradley effect",
      "name": "en-proper noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
      "categories": [
        "American English",
        "English entries with incorrect language header",
        "English eponyms",
        "English lemmas",
        "English multiword terms",
        "English proper nouns",
        "English uncountable nouns",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Politics"
      ],
      "glosses": [
        "A theory concerning observed discrepancies between opinion polls and election outcomes, according to which some white voters who intend to vote for a white candidate may tell pollsters that they are undecided or likely to vote for a non-white candidate, for fear of being accused of racism."
      ],
      "links": [
        [
          "politics",
          "politics"
        ],
        [
          "discrepancies",
          "discrepancy"
        ],
        [
          "opinion poll",
          "opinion poll"
        ],
        [
          "election",
          "election"
        ],
        [
          "outcome",
          "outcome"
        ],
        [
          "white",
          "white"
        ],
        [
          "candidate",
          "candidate"
        ],
        [
          "racism",
          "racism"
        ]
      ],
      "raw_glosses": [
        "(US, politics) A theory concerning observed discrepancies between opinion polls and election outcomes, according to which some white voters who intend to vote for a white candidate may tell pollsters that they are undecided or likely to vote for a non-white candidate, for fear of being accused of racism."
      ],
      "synonyms": [
        {
          "word": "Wilder effect"
        }
      ],
      "tags": [
        "US"
      ],
      "topics": [
        "government",
        "politics"
      ],
      "wikipedia": [
        "Bradley effect"
      ]
    }
  ],
  "word": "Bradley effect"
}