{"id":"W1989344163","doi":"10.2307/3315914","title":"Variance estimation for two-phase stratified sampling","year":2000,"lang":"en","type":"article","venue":"Canadian Journal of Statistics","topic":"Survey Sampling and Estimation Techniques","field":"Mathematics","cited_by":13,"is_retracted":false,"has_abstract":true,"ca_institutions":"Statistics Canada","funders":"","keywords":"Estimator; Mathematics; Statistics; Context (archaeology); Stratified sampling; Estimation; Geography; Economics","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":true,"about_ca":true,"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":[0.03510315,0.001052555,0.001764318,0.001998714,0.000648823,0.002099273,0.002712719,0.001917916,0.004777838],"category_scores_gemma":[0.1194367,0.0009591234,0.0021118,0.00282045,0.001791281,0.003174339,0.0027843,0.002034545,0.001178003],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.001786462,"about_ca_system_score_gemma":0.002095123,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.003553557,"about_ca_topic_score_gemma":0.002881511,"domain_scores_codex":[0.969528,0.02373636,0.0008148949,0.002177199,0.003101755,0.0006418126],"domain_scores_gemma":[0.9453884,0.04277212,0.002090056,0.006566057,0.002953588,0.0002298425],"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":[0.0002357763,0.0001382654,0.008825065,0.000399705,0.0004656196,0.0002050322,0.0005868493,0.08777265,0.001544793,0.6564741,0.003993076,0.2393591],"study_design_scores_gemma":[0.0001029258,0.0002740995,0.002772339,0.0001534652,0.0001539693,0.0001697983,0.0001278077,0.6514552,0.001762782,0.3329935,0.009961993,0.00007220611],"study_design_candidate":"theoretical_or_conceptual","study_design_consensus":"theoretical_or_conceptual","genre_codex":"methods","genre_gemma":"methods","genre_scores_codex":[0.00205396,0.0001609463,0.9969463,0.00007217533,0.00004265209,0.0001296066,0.00003574622,0.00006847148,0.0004901622],"genre_scores_gemma":[0.1363117,0.0007190151,0.8570187,0.0003422612,0.0001734659,0.001521217,0.0004244458,0.0001288005,0.003360448],"genre_candidate":"methods","genre_consensus":"methods","teacher_disagreement_score":0.03510315,"threshold_uncertainty_score":0.1856455,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.1269228444227855,"score_gpt":0.387710841119841,"score_spread":0.2607879966970554,"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."}}