{
    "slug": "ifish-rainbow-trout-2022",
    "source_label": "iFishIENCi (2022) — Rainbow trout feed-system panel",
    "source_url": "https:\/\/zenodo.org\/records\/10842711",
    "license": "CC-BY 4.0",
    "fielded_at": "2022-08-01",
    "methodology": "survey",
    "n_respondents": 21,
    "disclosure": {
        "license": "CC-BY 4.0. Attribution: Rost, A. et al., ttz Bremerhaven (2022), iFishIENCi D3.6 sensory analysis. https:\/\/zenodo.org\/records\/10842711",
        "weights": "Unweighted hedonic. 9-point discrete scale per ASTM\/ISO 11036. Single rating per product per panellist per attribute (appearance, odour, taste, mouthfeel, general impression). Only general impression is paired here.",
        "screener": "Trained consumer panel recruited by ttz Bremerhaven (DE) for the iFishIENCi project D3.6 sensory assessment. Specific inclusion criteria not in the public spreadsheet; see project deliverable PDF at https:\/\/ifishienci.eu\/wp-content\/uploads\/2024\/01\/iFishIENCi_D3.6.pdf.",
        "fieldwork": "Bremerhaven, Germany (ttz). Fieldwork month: 2022-08 (from filename _08.2022). EU project iFishIENCi D3.6 sensory analysis of alternative-protein-fed fish.",
        "coding_rules": "Hedonic survey by trained consumer panel, not FGI. No moderator guide. Carryover order and serving were balanced by ttz Bremerhaven per the iFishIENCi protocol.",
        "likert_labels": "9-point hedonic per ASTM\/ISO 11036 standard (Peryam–Pilgrim 1957). 1 = \"dislike extremely\". 5 = \"neither like nor dislike\". 9 = \"like extremely\". Intermediate anchors are conventional (dislike very much \/ moderately \/ slightly; like slightly \/ moderately \/ very much). Labels not in the source spreadsheet; standard sensory-science instrument cited.",
        "question_text": "On the 9-point hedonic scale, what is your general impression of this rainbow trout sample? (Peryam–Pilgrim 1957; ASTM E2454 \/ ISO 11036) — single rating per panellist per product."
    },
    "questions": [
        {
            "question_template_slot": "hedonic_trout_control",
            "prompt_text": "Overall, how much do you like this rainbow trout? (Control — standard commercial feed)",
            "ground_truth_mean": 4,
            "ground_truth_ci_lower": 3.617,
            "ground_truth_ci_upper": 4.383,
            "ground_truth_sd": 0.873,
            "ground_truth_skewness": -1.128,
            "ground_truth_shape": "left-skewed",
            "ground_truth_distribution": {
                "1": 0,
                "2": 1,
                "3": 0,
                "4": 1,
                "5": 1,
                "6": 4,
                "7": 4,
                "8": 6,
                "9": 4
            },
            "n_respondents": 21,
            "weighting_notes": "Unweighted hedonic, general impression attribute. 1-9 → 1-5 linear rescale 1 + (x-1)*4\/8. Original 1-9 mean 7.000, SD 1.789. Trained sensory panel N=21."
        },
        {
            "question_template_slot": "hedonic_trout_candida",
            "prompt_text": "Overall, how much do you like this rainbow trout? (Candida — partial protein replaced with Candida utilis yeast)",
            "ground_truth_mean": 3.762,
            "ground_truth_ci_lower": 3.394,
            "ground_truth_ci_upper": 4.13,
            "ground_truth_sd": 0.84,
            "ground_truth_skewness": -0.735,
            "ground_truth_shape": "left-skewed",
            "ground_truth_distribution": {
                "1": 0,
                "2": 1,
                "3": 0,
                "4": 1,
                "5": 3,
                "6": 5,
                "7": 4,
                "8": 5,
                "9": 2
            },
            "n_respondents": 21,
            "weighting_notes": "Unweighted hedonic, general impression attribute. 1-9 → 1-5 linear rescale 1 + (x-1)*4\/8. Original 1-9 mean 6.524, SD 1.721."
        },
        {
            "question_template_slot": "hedonic_trout_nanno_high",
            "prompt_text": "Overall, how much do you like this rainbow trout? (Nanno high — high inclusion of Nannochloropsis microalgae)",
            "ground_truth_mean": 3.738,
            "ground_truth_ci_lower": 3.396,
            "ground_truth_ci_upper": 4.08,
            "ground_truth_sd": 0.781,
            "ground_truth_skewness": -0.593,
            "ground_truth_shape": "left-skewed",
            "ground_truth_distribution": {
                "1": 0,
                "2": 0,
                "3": 1,
                "4": 2,
                "5": 3,
                "6": 2,
                "7": 7,
                "8": 5,
                "9": 1
            },
            "n_respondents": 21,
            "weighting_notes": "Unweighted hedonic, general impression attribute. 1-9 → 1-5 linear rescale 1 + (x-1)*4\/8. Original 1-9 mean 6.476, SD 1.601."
        },
        {
            "question_template_slot": "hedonic_trout_nanno_low",
            "prompt_text": "Overall, how much do you like this rainbow trout? (Nanno Low — low inclusion of Nannochloropsis microalgae)",
            "ground_truth_mean": 3.643,
            "ground_truth_ci_lower": 3.371,
            "ground_truth_ci_upper": 3.915,
            "ground_truth_sd": 0.62,
            "ground_truth_skewness": 0.345,
            "ground_truth_shape": "unimodal",
            "ground_truth_distribution": {
                "1": 0,
                "2": 0,
                "3": 0,
                "4": 1,
                "5": 5,
                "6": 7,
                "7": 4,
                "8": 3,
                "9": 1
            },
            "n_respondents": 21,
            "weighting_notes": "Unweighted hedonic, general impression attribute. 1-9 → 1-5 linear rescale 1 + (x-1)*4\/8. Original 1-9 mean 6.286, SD 1.271."
        }
    ]
}