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STATEMENT OF THE PROBLEM AND STUDY DESIGN. Lu Ann Aday, Ph.D. The University of Texas School of Public Health. TYPE OF DESIGN: Observational – Cross-Sectional (One-Group). GROUPS No. of groups: 1 Criteria for selection: Population of interest TIME PERIODS No. of time periods: 1
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STATEMENT OF THE PROBLEM ANDSTUDY DESIGN Lu Ann Aday, Ph.D. The University of Texas School of Public Health
TYPE OF DESIGN: Observational – Cross-Sectional (One-Group) • GROUPS • No. of groups: 1 • Criteria for selection: Population of interest • TIME PERIODS • No. of time periods: 1 • Reference periods: Present (and recall of past)
TYPE OF DESIGN: Observational –Group-Comparison (Case-control) • GROUPS • No. of groups: 2+ • Criteria for selection: Population subgroups with and without characteristic of interest • TIME PERIODS • No. of time periods: 1 • Reference periods: Present and recall of past
TYPE OF DESIGN: Observational –Longitudinal (Prospective) • GROUPS • No. of groups: 1 or 2+ • Criteria for selection: Population or subgroups that are and are not likely to develop characteristic of interest • TIME PERIODS • No. of time periods: 2+ • Reference periods: Present and future
TYPE OF DESIGN: Experimental –“True” Experiment (Randomized Clinical Trial) • GROUPS • No. of groups: 2+ • Criteria for selection: Randomly determined subgroups of population • TIME PERIODS • No. of time periods: 2+ • Reference periods: Present and future
SAMPLE OBJECTIVE: Objective 1 • 1. TO ESTIMATE dental malpractice insurance experience in a representative sample of dentists in the U.S. in 1991.
SAMPLE OBJECTIVE: Objective 2 • 2. TO COMPARE dental malpractice insurance experience by the dentist’s demographic characteristics.
SAMPLE OBJECTIVE: Objective 3 • 3. TO ANALYZE the relative importance of doctor-patient communication, practice characteristics, practice finances, and dentist’s demographic characteristics in predicting dental malpractice insurance experience.
SAMPLE OBJECTIVE: Objective 3—Hypothesis • Doctor-patient communication is more important than practice characteristics, practice finances, and dentist’s demographic characteristics in predicting dental malpractice insurance experience.
MEASUREMENT MATRIX: National Dental Malpractice Survey (Aday & Cornelius, 2006, Table 15.1)
SURVEY ERRORS: Matching the Survey Design to Survey Objectives