{"id":"W2035434565","doi":"10.1177/01466216010251006","title":"The Extra-Factor Phenomenon Revisited: Unidimensional Unfolding as Quadratic Factor Analysis","year":2001,"lang":"en","type":"article","venue":"Applied Psychological Measurement","topic":"Sensory Analysis and Statistical Methods","field":"Agricultural and Biological Sciences","cited_by":18,"is_retracted":false,"has_abstract":true,"ca_institutions":"Simon Fraser University","funders":"Social Sciences and Humanities Research Council of Canada","keywords":"Phenomenon; Factor (programming language); Covariance; Quadratic equation; Metric (unit); Factor analysis; Mathematics; Set (abstract data type); Applied mathematics; Statistics; Computer science; Physics; Geometry","routes":{"ca_aff":true,"ca_fund":true,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0307411,0.001553975,0.001311309,0.003093343,0.001787801,0.004978817,0.0021313,0.001565185,0.003220956],"category_scores_gemma":[0.1143771,0.0007261214,0.001550615,0.007342659,0.01230724,0.01137857,0.005565487,0.00566833,0.0004294178],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.001455135,"about_ca_system_score_gemma":0.001798205,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.001189615,"about_ca_topic_score_gemma":0.001000695,"domain_scores_codex":[0.9768024,0.01557828,0.001154915,0.002210146,0.003745382,0.0005089307],"domain_scores_gemma":[0.9240366,0.05410444,0.004951093,0.01227708,0.00411746,0.0005133107],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"theoretical_or_conceptual","study_design_gemma":"theoretical_or_conceptual","study_design_scores_codex":[0.0001269581,0.00005480192,0.003609949,0.0004231234,0.0001334637,0.0002827127,0.008362156,0.001923048,0.001611849,0.8718451,0.001764178,0.1098628],"study_design_scores_gemma":[0.00002453707,0.00009788469,0.004252256,0.0001921033,0.00003627981,0.0005157854,0.001227208,0.02102294,0.0009343385,0.9628034,0.008803538,0.00008960732],"study_design_candidate":"theoretical_or_conceptual","study_design_consensus":"theoretical_or_conceptual","genre_codex":"methods","genre_gemma":"methods","genre_scores_codex":[0.03163601,0.0028704,0.950754,0.002093074,0.0004940338,0.0001518217,0.00006273931,0.0002870943,0.01165075],"genre_scores_gemma":[0.6019787,0.001583512,0.3928115,0.0007651679,0.0004034483,0.0004780405,0.0001036944,0.0001772042,0.001698728],"genre_candidate":"methods","genre_consensus":"methods","teacher_disagreement_score":0.0307411,"threshold_uncertainty_score":0.1625765,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.1400589295419584,"score_gpt":0.3338867503694962,"score_spread":0.1938278208275377,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}