Simcha Pollack

Dr. Simcha Pollack
Professor of Computer Information Systems and Decision Sciences

Dr. Pollack, a 1970 Phi Beta Kappa of the City University of New York, went on to receive his Ph.D. in Applied Statistics and Operations Research from New York University in 1974 as a National Science Foundation Fellow. He continued his post-doctoral research into statistical models of perception at Bell Laboratories in Murray Hill, New Jersey.

Dr. Pollack is an internationally recognized scholar in the field of applied statistics. He began teaching at St. John's University in 1979. Since then he has published over 90 papers in prestigious, refereed journals and has participated in over 160 scientific presentations in the United States and abroad.

Dr. Pollack's has two current major research interests. One involves the application of business statistics to issues affecting length and cost of stay in the general hospital. A recent publication in the widely read and influential American Journal of Psychiatry details these findings.

Dr. Pollack's other research interest involves an innovative approach to standard statistical problems known variously as "resampling statistics" of the "bootstrap" it can solve conventional and also unusual statistical problems with a minimum of assumptions and a maximum of understanding. He has introduced these concepts at diverse scientific meetings and in several publications. Students have reacted favorably to this approach.

Dr. Pollack maintains a dynamic professional life. He has a consulting practice and sits on several important committees of the American Statistical Association. His work for the Landmines Research Project through the statistical Model Review Committee contributed publications which in turn have had an important influence on the Pentagon's decision to severely restrict landmine use. Dr. Pollack also contributes to the field by acting as a statistical reviewer for eight journals.

Last, but not least, Dr. Pollack enjoys teaching statistics in the College of Business Administration at the undergraduate and graduate levels.

Courses Taught

Subject	Number	Title
DS	2333	Bus and Econ Statistics I
DS	2334	Business and Economic Stats II

Refereed Journals
Alagappan K, Steinberg M, Mancherje N, Pollack S, Carpenter K. Psyhologic Effect of a Four Week Emergency Medicine Rotation for Residents in Training. Academic Emergency Medicine. In press.

Ferdinandi A, Pollack S, Yoottanasumpun V, Bermanzohn P: Predicting Rehabilitation Outcome in Schizophrenia. Psychiatric Services. In press.

Hinrichsen G, Pollack S. Expressed Emotion and the Course of Late Life Depression. Journal of Abnormal Psychology. In press.

Saravay S, Kaplaowitz M, Pollack S, Zeeman D, Kurek J. Delirium and Dementia: Associated Symptoms and Length of Stay. Psychosomatics. In press.

Umbricht D, Novak G, Javitt D, Bates J, Pollack S, Lieberman J, Kane J: The effect of clozapine on auditory event-related potentials. Biological Psychiatry. In press.

Pollack S, Woerner M, Howard A, Fireworker R, Kane J: Clozapine reduces rehospitalization among schizophrenic patients. Psychopharmacology Bulletin, 34(1): 92-94, 1998.

Klein R, Abikoff A, Klass E, Ganeles D, Seese L, Pollack S: Clinical efficacy of methylphenidate in conduct disorder. Archives of General Psychiatry, 54(12): 1073-1080, 1997.

Strous R, Rokhsar M, Pollack S, Robinson D, Woerner M, Lieberman J: Seasonal admissions patterns in first episode schizophrenia. Schizophrenia Research, (Abstract) 24: 258, 1997.

Porto L, Bermanzohn P, Pollack S, Morrissey R, Sirus S: A profile of obsessive-compulsive symptoms in schizophrenia. CNS Spectrums, 2(3): 21-25, 1997.

Bermanzohn P, Porto L, Arlow P, Axelrod S, Sastry G, Stronger R, Pollack S, Sirus S: Are some neuroleptic-refractory symptoms of schizophrenia really obsessions? CNS Spectrums, 2(3): 50-57, 1997.

Bermanzohn P, Porto L, Arlow P, Axelrod S, Stronger R, Martino-Beyer J, Pollack S, Sirus S: Obsessions and delusions: Separate and distinct, or overlapping? CNS Spectrums, 2(3): 58-61, 1997.

Sankaran R, Mattana J, Pollack S, Baht P, Ahuja T, Patel A, Singhal P: Laboratory abnormalities in patients with bacterial pneumonia. Chest, 111(3): 595-600, 1997.

Weisbard J, Pardo M, Pollack S, Young Y: Symptom change and extrapyramidal side effects during acute haloperidol treatment in chronic geriatric schizophrenics. Psychopharmacology Bulletin, 33(1): 119-122, 1997.

Rifkin A, Karajgi B, Dicker R, Perl E, Boppana V, Hasan N, Pollack S: Lithium treatment of conduct disorders in adolescents. American Journal of Psychiatry, 154(4): 554-5, 1997.

Hinrichsen G, Pollack S: Expressed emotion and the course of late life depression. Journal of Abnormal Psychology, 106)2): 336-340, 1997.

Alagappan K, Steinberg M, Mancherje N, Pollack S, Carpenter K: Psychologic effect of a four week emergency medicine rotation for residents in training. Academic Emergency Medicine, 3: 1131-1135, 1996.

Gordon J, Wallerstein S, Pollack S: The advanced clinical skills program in medical interviewing: A block curriculum for residents in medicine. International Journal of Psychiatry in Medicine, 26(4): 411-429, 1996.

Klein DA, Saravay SM, Pollack S: The attitudes of medical inpatients toward psychiatric consultations: A re-examination. International Journal of Psychiatry in Medicine, 26: 287-293, 1996.
  
Steinberg H, Saravay S, Wadhwa N, Pollack S, Maesaka J. Erythropoietin and Visual Hallucinations in Patients on Dialysis. Psychosomatics. In press.

Szymanski S, Lieberman J, Pollack S, Kane J, Safferman A, Munne R, Umbricht D, Masiar S, Kronig M. Gender Differences in Neuroleptic Nonresponsive Clozapine-Treated Schizophrenics. Biological Psychiatry, 39: 249-254, 1996.

Kafantaris V, Lee D, Magee H, Winny G, Samuel R, Pollack S, Campbell M. Assessment of Children with the Overt Aggression Scale. Journal of Neuropsychiatry and Clinical Neurosciences, 8(2): 186-193, 1996.

Robinson D, Woerner M, Pollack S, Lerner G. Subject Selection Biases in Clinical Trials: Data from a Multicenter Schizophrenia Treatment Study. Journal of Clinical Psychopharmacology, 16(2): 170-176, 1996.

Pollack S, Fireworker R, Borenstein M. Some Resampling Algorithms for the Testing of Hypotheses. 1995 Proceedings of the Section on Statistical Education, American Statistical Association, 288-292, 1995.

Umbricht D, DeGreef G, Barr W, Pollack S, Schaul N. Postictal and Chronic Psychoses in Patients with Refractory Temporal Lobe Epilepsy. American Journal of Psychiatry, 152(2): 224-231, 1995.

Kronig M, Munne R, Szymanski S, Safferman A, Pollack S, Kane J, Lieberman J. Plasma Clozapine levels and Clinical Response in Treatment Refractory Schizophrenic Patients. American Journal of Psychiatry, 152(2): 179-182, 1995.

Pollack S, Lieberman J, Fleischhacker W, Borenstein M, Safferman A, Hummer M, Kurtz M. A Comparison of European and American Dosing Regimens of Schizophrenic Patients on Clozapine: Efficacy and Side Effects. Psychopharmacology Bulletin, 31(2): 315-320, 1995.

Szymanski S, Lieberman J, Pollack S, Loebel A, Koreen A, Sobel S. Clozapine Effects on Neuroendocrine Response to Apomorphine Challenge Testing in Chronic Neuroleptic Non-Responsive Schizophrenia: Preliminary Findings. Biological Psychiatry, 37(1): 52-55, 1995.

Szymanski S, Lieberman J, Pollack S, Kane J, Safferman A, Munne R, Umbricht D, Masiar S, Kronig M. Gender Effects in Neuroleptic Nonresponsive Clozapine-treated Schizophrenics and Schizoaffectives. Biological Psychiatry. In Press.

Eviatar L, Malkin E, Pollack S. Effects of Perinatal High Risk Factors on Vestibular Function. (Abstract) Pediatric Neurology, 11(2) Sep. 1994.

Borenstein M. The Case for Confidence Intervals in Controlled Clinical Trials. Controlled Clinical Trials. 15: 411-428, 1994. (Cited for statistical contributions.)

Borenstein M. Planning for Precision in Survival Studies. Journal of Clinical Epidemiology, 47(11): 1277-1285, 1994. (Cited for statistical contributions).

Lieberman J, Kane J, Safferman A, Pollack S, Howard A, Szymanski S, Masiar S. Predictors of Response to Clozapine. The Journal of Clinical Psychiatry. 55(9, suppl B): 126-128, 1994.

Bilder R, Wu H, Chakos M, Bogerts B, Pollack S, Aronwitz J, Ashtari M, Degreef G, Kane J, Lieberman J. Cerebral Morphometry and Clozapine Treatment in Schizophrenia. The Journal of Clinical Psychiatry. 55(9, supp B): 53-56, 1994.
  
Umbricht D, Pollack S, Kane J. Clozapine and Weight Gain. The Journal of Clinical Psychiatry, 55(9, suppl B): 157-160, 1994.

Borenstein M. A Note on the Use of Confidence Intervals in Psychiatric Research. Psychopharmacology Bulletin, 30(2): 235-238, 1994. (Cited for statistical contributions.)

Fleischhacker WW, Hummer M, Kurz M, Kurzthaler I, Lieberman JA, Pollack S, Safferman A, Kane J. Clozapine Dose in the US and Europe: Implications for Therapeutic and Adverse Effects. The Journal of Clinical Psychiatry, 55(9, suppl B): 78-81, 1994.

Safferman A, Kane J, Aronowitz J, Gordon M, Pollack S, Lieberman J. The Use of Clozapine in Neurologic Disorders. The Journal of Clinical Psychiatry, 55(9, suppl B): 98-101, 1994.

Pollack S, Bruce P, Borenstein M, Lieberman J. The Resampling Method of Statistical Analysis. Psychopharmacology Bulletin, 30(3): 227-234, 1994.

Kleiner D, Borenstein M, Pollack S. PC Based Simulation of Statistical Power with Business Law Applications. Proceedings of the American Statistical Association's 1993 Annual Conference: Statistical Education, 210-213, 1994.

Friedman H, Herskovitz P, Pollack S. The Biasing Effects of Scale-Checking Styles in Response to a Likert Scale. Proceedings of the American Statistical Association's 1993 Annual Conference: Survey Research Methods, 792-795, 1994.

Pollack S, Friedman H. Biasing Effects in Rating Scales: Differences Between Putative Synonyms for Occupations. Proceedings of the American Statistical Association's 1993 Winter Conference: Social Statistics, 890-892, 1994.

Roy A, Pollack S. Are CSF or Urinary Monoamine Metabolite Measures Stronger Correlates of Suicidal Behavior in Depression? Neuropsychobiology, 29: 164-167, 1994.

Gordon M, Lipton R, Brown S, Pollack S, Merriam A, van Pragg H. Headache and Cortisol Response to M-chlorophenylpiperazine are highly correlated. Cephalalgia, 13: 400-405, 1993.

Hinrichsen G, Hernandez N. Factors Associated with Recovery and Relapse from Major Depressive Disorder in the Elderly. (Cited for statistical contributions.) American Journal of Psychiatry, 150: 1820-1825, 1993.

Zweig R, Hinrichsen G. Factors Associated with Suicide Attempts in Depressed Older Adults: A Prospective Study. (Cited for statistical contributions.) American Journal of Psychiatry, 150: 11, 1687-1692, 1993.

Umbricht D, Saltz B, Lieberman J, Pollack S. Are Psychogenic Polydipsia and Tardive Dyskinesia Related disorders? American Journal of Psychiatry, 150(10), 1536-1538, 1993.

Szymanski S, Lieberman J, Pollack S, Munne R, Safferman A, Kane J, Kronig M, Cooper T. The Dopamine-Serotonin Relationship in Clozapine Response. Psychopharmacology, 112: s85-s89, 1993.

Nurnberg G, Pollack S, Levine S, Raskin M, Siegel O. Axis II Comorbidity of Self Defeating Personality Disorder with Other Axis II Personality Disorders. Journal of Personality Disorders 7(1), 10-21, 1993.

Fleischhacker WW, Levine RA, Lieberman JA, Pollack S, Johns C, Richardson M. Neopterin and Biopterin CSF Levels in Tardive Dyskinesia after Clozapine Treatment. Biological Psychiatry, 34(10): 741-745, 1993.

Gordon J, Ulrich C, Pollack S. Staff Distress Among Hemophilia Nurses. The Journal of AIDS Care, 5(3): 359-367, 1993.

Kane JM, Pollack S, Worner M, Safferman A, Lieberman J. Does Clozapine Cause Tardive Dyskinesia? Journal of Clinical Psychiatry, 54:9, 327-330, 1993.

Pollack S, Lieberman L, Kleiner D, Szymanski S, Kane J, Borenstein M, Cooper T. High Plasma Clozapine Levels in Tardive Dyskinesia. Psychopharmacology Bulletin, 29(2), 257-262, 1993.

Pollack S, Borenstein M, Kane J, Woerner P, Lieberman J. Adjusting Observed Cumulative Incidence in Survival Studies to Account for Differential Hazard Rates in the Dropout and Followed Cohorts. Statistics in Medicine, (Extended abstract.) 11 (14), 2029-2030, 1992.
  
Rabin J, Seltzer V, Pollack S. The Benefits of a Comprehensive Teenage Pregnancy Program. The American Journal of Gynecologic Health, 6 (3), 10-18, 1992.

Pollack S, Friedman H, Borenstein M. Issues in Marketing Research/Survey Questionnaire Design. Proceedings of the 10th Annual National Conference of the Association of Management: Business Management, 10 (2), 88-94, 1992.

Roy A, Karoum F, Pollack S. Marked Reduction in Indices of Dopamine Metabolism Among Depressed Patients Who Attempt Suicide. The American Journal of Psychiatry, 49 (6), 447-450, 1992.

Borenstein M, Cohen J, Rothstein H, Pollack S. A Visual Approach to Statistical Power Analysis. Behavioral Research, Methods, Instruments and Computers, 24 (4), 565-572, 1992.

Corsan G, Kemmann E, Boherer M, Blotner M, Smilow P, Shelden R. Use of Urinary Lutenizing Hormone in Immunoassay for the Assessment of Luteal Function in Fertile Women. The American Journal of Obstetrics and Gynecology, 166(1), 41-46, 1992. (Cited for statistical contributions.)

Hinrichsen G, Hernandez N, Pollack S. Difficulties and Rewards in Family Care of the Depressed Older Adult. The Gerontologist, 32(4), 486-492, 1992.

Pollack S, Borenstein M. Estimation of Statistical Power for the Comparison of Survival Curves Using Monte Carlo Simulation. Proceedings of NATO Advanced Workshop in Survival Analysis, (Contributed Papers, 35-37) June, 1991.

Rabin J. Seltzer V, Pollack S. Long Term Benefits of a Comprehensive Teenage Pregnancy Program. Journal of Clinical Pediatrics, 30(5), 305-309, 1991.

Nurnberg G, Raskin M, Pollack S, Levine S: Axis II Comorbidity of Borderline Personality Disorder with Other Axis II Personality Disorders. The American Journal of Psychiatry, 148:10, 1371-1377, 1991.

Saravay S, Pollack S, Steinberg M, and Weinshal B. Psychological Comorbidity and Length of Stay in the General Hospital. The American Journal of Psychiatry, 148, 3, 324-329, 1991.

Lemus L, Lieberman J, Johns C, Mayerhoff D, Pollack S, Cooper T, Novacenko H. Hormonal Response to Fenfluramine Challenges in Clozapine-Treated Schizophrenic Patients. Biological Psychiatry, 29(7): 691-694, 1991.
  
Nurnberg G, Raskin M, Pollack S, Levine S. Hierarchy of DSM III criteria efficiency for the diagnosis of borderline personality disorder. Journal of Personality Disorders, 5(3), 211-224, 1991.

Lieberman J, Saltz B, Johns C, Pollack S, Borenstein M, Kane J. The Effects of Clozapine on Tardive Dyskinesia. The British Journal of Psychiatry, 158, 503-510, 1991.

Mayerhoff D, Lieberman J, Lemus C, Pollack S, Schneider B. Growth hormone response to growth hormone releasing factor. American Journal of Psychiatry, 147: 1072-1074, 1990.

Boone L, Hollingsworth T, Pollack S. The Effects of Problem Structure and Interdependence on Effective Organizational Decision Making Environments. Proceedings of the 1990 Annual Meeting of the Decision Sciences Institute, 1391-1393, 1990.

Lemus C, Lieberman J, Johns C, Pollack S, Bookstein P, Cooper T. CSF 5-hydroxyindoleacetic acid levels and suicidality in schizophrenia. Biological Psychiatry, 27: 926-929, 1990.

Rothstein H, Borenstein M, Cohen J, Pollack S. Statistical power analysis for multiple regression correlation. Educational and Psychological Measurement, 50: 819-830, 1990.

Borenstein M, Cohen J, Rothstein H, Pollack S. Statistical power analysis for one way ANOVA: A Computer program. Behavioral Research, Methods, Instruments and Computers, 22(3): 271-282, 1990.

Gorray K, Maimon J, Schneider B. Antiproteolytic Effects of Glyburide and Insulin on Ratr 16 Myoblasts. Metabolism, 39(2), 109-116, 1989. (Cited for statistical contributions).

Lieberman J, Johns C, Cooper T, Pollack S. Clozapine pharmacology and Tardive Dyskinesia. Psychopharmacology, 99: S54-S59, 1989.

Nurnberg G, Raskin M, Pollack S, Levine S. Borderline Personality Disorder as a Negative Prognostic Factor in Anxiety Disorder. Journal of Personality Disorders, 3(3): 205-216, 1989.

Wall R, Hinrichsen G, Pollack S. Psychometric Characteristics of the Multidimensional Health Locus of Control Among Psychiatric Patients. Journal of Clinical Psychology, 4S(1): 94-98, 1989.
  
Lieberman J, Saltz B, Johns C, Pollack S, Kane J. Clozapine Effects on Tardive Dyskinesia. Psychopharmacology Bulletin, 25(1): 57-62, 1989.

Hinrichsen G, Lieberman J, Pollack S, Steinberg H. Depression In Hemodialysis Patients. Psychosomatics, 284-289, Summer, 1989.

Lieberman J, Johns C, Kane J, Rai k, Piscioatta A, Saltz B. Clozapine-Induced Agranulocytosis: Non-Cross-Reactivity with Drugs. Journal Clinical Psychiatry, 1988, 49(7): 271-277 (cited for statistical contributions).

Lieberman J, Lesser M, Johns C, Pollack S, Saltz B, Kane J. Pharmacologic Studies of Tardive Dyskinesia. Journal of Clinical Psychopharmacology, 8(4): 57S-63S, 1988.

Lieberman J, Lesser M, Johns C, Pollack S, Saltz B, Kane J. Pharmacologic Characterization of Tardive Dyskinesia. Journal of Clinical Psychopharmacology, 8(4): 254-260, 1988.

Kaplan S, Busner J, Pollack S. Perceived Weight, Actual Weight, and Depressive Symptoms in a General Adolescent Population. International Journal of Eating Disorders, 7(1): 107-113, 1988.

Pollack S, Borenstein. A Micro Computer Program for Demonstrating the Concepts of Inferential Statistics. Proceedings of the Eleventh Western Educational Computing Conference, 11: 39-42, 1987.

Chardavoyne R, Flint G, Pollack S, Wise L: Factors Affecting Recurrence Following Resection for Crohn's Disease. Diseases of the Colon and Rectum, 29(8): 495-502, 1986.

Frishman W, Charlap S, Kimmel B, Saltzberg S, Pollack S, Strom J. Twice-Daily Administration of Oral Verapamil in the Treatment of Essential Hypertension. Archives of Internal Medicine, 146(3): 561-5, 1986.

Charlap S, Kimmel B, Berezow J, Molinas S, Strom J, Pollack S, Frishman W. Lidoflazine and Propranolol Combination Treatment in Chronic Stable Angina. Angiology, 36(4): 240-252, 1985.

Frishman W, Klein N, Strom J, Tamil R, Wong B, Pollack S, Sonnenblick E. Comparison of Oral Propranolol and Verapamil for Combined Systemic Hypertension and Angina Pectoris. American Journal of Cardiology, 50(5): 1164-72, 1982.

Frishman W, Klein N, Strom J, Cohen M, Pollack S, Sonnenblick E. Comparative Effects of Abrupt Withdrawal of Propranolol and Verapamil in Angina Pectoris. American Journal of Cardiology, 50(5): 1191-5, 1982.

Frishman W, Klein N, Strom J, Willer W, Jentzen J, Pollack S, Doyle R, Kirsten E, Sonnenblick E. Superiority of Verapamil to Propranolol Stable Angina Pectoris: A Double-Blind Randomized Cross-Over Trial. Circulation, January 65: I-52-59, 1982.

Presby L, Myzner M, Pollack S: Multiple Masking in a Backward Masking Paradigm. Bulletin of the Psychonomic Society, 11(3) 145-148, 1978.

E-mail: pollacks@stjohns.edu