Although physician surveys are an important tool in health services and policy research, they are often characterized by low response rates. The authors conducted a systematic review of 66 published reports of efforts to improve response rates to physician surveys. Two general strategies were explored in this literature: incentive and design-based approaches. Even small financial incentives were found to be effective in improving physician response. Token nonmonetary incentives were much less effective. In terms of design strategies, postal and telephone strategies have generally been more successful than have fax or Web-based approaches, with evidence also supporting use of mixed-mode surveys in this population. In addition, use of first-class stamps on return envelopes and questionnaires designed to be brief, personalized, and endorsed by legitimizing professional associations were also more likely to be successful. Researchers should continue to implement design strategies that have been documented to improve the survey response of physicians.

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Background: Survey data used to study trends in cancer screening may overestimate screening utilization while potentially underestimating existing disparities in use. Methods: We did a literature review and meta-analysis of validation studies examining the accuracy of selfreported cancer-screening histories. We calculated summary random-effects estimates for sensitivity and specificity, separately for mammography, clinical breast exam (CBE), Pap smear, prostate-specific antigen testing (PSA), digital rectal exam, fecal occult blood testing, and colorectal endoscopy.

The authors investigated at the country level the effects of four cultural orientations identified and studied by Hofstede on two commonly recognized response biases: extreme response style and acquiescent responding. Data are presented from approximately 18,000 survey questionnaires completed by employees in 19 nations on five continents (Australia, Belgium, Brazil, Czech Republic, Germany, Hungary, India, Japan, Malaysia, Portugal, Turkey, the United Kingdom, Mexico, the Philippines, Poland, Singapore, Hong Kong, France, and Italy). Hierarchical linear modeling was employed to examine the associations between personlevel response styles and country-level cultural orientations. Consistent with theoretical expectations, power distance and masculinity were found to be positively and independently associated with extreme response style. Individualism, uncertainty avoidance, power distance, and masculinity were each found to be negatively associated with acquiescent response behavior. Further research is needed to identify how question characteristics might interact with cultural orientations to influence response behavior.

Research suggests that collectivists are more likely to engage in deception and socially desirable responding to maintain good relationships with others. In contrast, individualists are portrayed as candid and sincere because individualism encourages people to "be yourself." The authors propose that people with both types of cultural orientations or backgrounds engage in desirable responding, albeit in distinct ways. In Study 1, respondents from the United States compared with those from Singapore, and European Americans compared with Asian Americans, scored higher on self-deceptive enhancement (SDE)-the tendency to see oneself in a positive light and to give inflated assessment of one's skills and abilities- but lower on impression management (IM) by misrepresenting their self-reported actions to appear more normatively appropriate. In Studies 2 to 4, horizontal individualism as a cultural orientation correlated with SDE but not with IM, whereas horizontal collectivism correlated with IM but not with SDE. Further analyses examining (a) individual differences in the tendency to answer deceptively and (b) responses to behavioral scenarios shed additional light on the culturally relevant goals served by these distinct types of socially desirable responding.