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PubMed2006

Incentives improve performance on both incremental and insight problem solving.

An increasing number of studies are showing a connection between emotion and motivation and cognitive processes. Most of these studies, however, have been correlational in nature, limiting the conclusions that can be drawn. We directly manipulated motivation through the use of an incentive and investigated its effects on insight and incremental problem solving. In four experiments we found that an incentive (the opportunity to leave the experiment early) increased problem-solving performance for all problems presented, regardless of problem type. Additionally, we found evidence that the incentive increased recall memory, indicating more thorough processing for participants in the incentive condition. This study provides evidence that incentives influence problem solving and implies that motivation should not be ignored when investigating cognitive processes.

Adult↗

PubMed2003

A randomized trial of incentives to improve response rates to a mailed women's health questionnaire.

BACKGROUND: Mailed questionnaires can be a convenient method for collecting data on women's health, although poor response rates are a concern. METHODS: As part of a survey of women's health conducted in Maryland in 2001, a randomized trial was performed to assess the effects of two incentives (US dollars 1.00 or a lottery ticket) as well as precontact with an introductory postcard on response rates. Questionnaires were mailed to 3000 women aged 40-60 who were randomized to one of six incentive/precontact groups: lottery/postcard, money/postcard, postcard only, lottery only, money only, or no incentive/no postcard. RESULTS: The overall response rate was 37.6%. Each incentive/precontact group yielded a higher response rate than the no incentive/no postcard group, although only the response rates for the lottery/postcard group (41.3%) and the money only group (40.0%) were significantly higher than that of the no incentive/no postcard group (33.1%). Money was the only factor that had a significant independent effect on likelihood of response (hazards ratio [HR] compared to no incentive = 1.22, 95% confidence interval [CI] = 1.03, 1.43). Response rates were lower in minority ZIP codes, although the effects of the incentives were generally greater than in the nonminority ZIP codes. CONCLUSIONS: These results indicate that response rates to mailed women's health questionnaires may be improved with modest incentives, particularly cash incentives.

Adult↗

PubMed2003

Randomized trial of financial incentives and delivery methods for improving response to a mailed questionnaire.

In a follow-up study, only 64% of 126,628 US radiologic technologists completed a questionnaire during 1994-1997 after two mailings. The authors conducted a randomized trial of financial incentives and delivery methods to identify the least costly approach for increasing overall participation. They randomly selected nine samples of 300 nonresponders each to receive combinations of no, 1.00 US dollar, 2.00 US dollars, and 5.00 US dollars cash or check incentives delivered by first-class mail or Federal Express. Federal Express delivery did not achieve greater participation than first-class mail (23.2% vs. 23.7%). In analyses pooled across delivery methods, the response was significantly greater for the 2.00 US dollar bill (28.9%, 95% confidence interval (CI): 25.2, 32.7; p < 0.0001), 5.00 US dollars check (27.5%, 95% CI: 22.5, 33.0; p = 0.0001), 1.00 US dollar bill (24.6%, 95% CI: 21.2, 28.3; p = 0.0007), and 2.00 US dollars check (21.8%, 95% CI: 18.5, 25.3; p = 0.02) compared with no incentive (16.6%, 95% CI: 13.7, 19.9). The response increased significantly with increasing incentive amounts from 0.00 to 2.00 US dollars cash (p trend < 0.0001). The 2.00 US dollar bill achieved a 30% greater response than did a 2.00 US dollars check (p = 0.005). For incentives sent by first-class mail, the 5.00 US dollars check yielded 30% greater participation than did the 2.00 US dollars check (p = 0.07). A 1.00 US dollar bill, chosen instead of the 2.00 US dollars bill because of substantially lower overall cost and sent by first-class mail to the remaining 42,717 nonresponders, increased response from 64% to 72%.

Adult↗

PubMed1995

Personal incentives as determinants of adolescent health behavior: the meaning of behavior.

It has been suggested that prevailing theories do not fully incorporate the less rational, more emotional elements of adolescent health and risk behavior. To address this limitation, the perceived incentives construct from Tappe's Model of Personal Investment is split into intrinsic and extrinsic incentives, with the intrinsic incentives representing personal meanings of adolescent health and risk behaviors. Intrinsic incentives were operationalized using transcripts from focus group interviews for three behavioral domains: sleeping habits, eating habits at lunch and eating habits after school. The ensuing questionnaire was completed by 416 Dutch secondary school students with a mean age of 14 years. Intrinsic incentives, or the personal meaning with which behavior is imbued, predicted health and risk behaviors well in all three behavioral domains. The implications of these results for further research and for the development of health education programs are discussed.

Adolescent↗

PubMed1989

Recruiting survey respondents to mailed surveys: controlled trials of incentives and prompts.

Three controlled experiments tested the efficacy of 1) a postcard or telephone prompt, 2) a lottery, 3) monetary incentives, and 4) questionnaire length to recruit adult survey respondents to a random sample of residences in San Diego, California, during 1986-1988. In experiment 1, the group randomly assigned to receive a telephone call prenotification plus the lottery incentive responded 26-66% more frequently than did controls (p = 0.02) after a single mailing. The postcard plus lottery was 17-54% more effective than no intervention with controls (p = 0.05). A second mailing of the survey weakened these effects. In experiment 2, the group randomly assigned to receive a two-page survey with the lottery announcement responded 69% more frequently after one mailing (p = 0.03) and 53% more frequently after a second mailing (p = 0.04) than the group that received an eight-page survey without the lottery incentive. The shorter form alone or the lottery alone did not increase response rates significantly relative to the long form without a lottery. In experiment 3, a monetary incentive of $5.00 contingent on response to the second mailing of the survey increased the rate of response from initial "nonresponders" by 100% relative to control who received no incentive (p = 0.03) and 75% over those who received $1.00 not contingent on response (p = 0.04). Little sampling bias and no reactivity was attributable to the recruitment procedures.

Adult↗

PubMed2002

Ensuring the stability of welfare-to-work exits: the importance of recipient knowledge about work incentives.

Welfare reform policies assume that recipients will increase work efforts if they are offered improved income and support services incentives. Yet, based on personal interviews with 60 welfare recipients, this study found that recipients often do not understand the incentives provided. This results both from a lack of knowledge about existing incentives and from confusion about eligibility rules and benefit calculations. Such knowledge deficits do not appear to be the result of lack of interest in working, but rather stem from the complexity of incentives. To improve recipient responsiveness and well-being, work incentives need to be simplified and strategies developed for better dissemination of information to recipients. Caseworkers must play a vital role in such efforts, because they often are the key to ensuring that recipients gain access to available benefits.

Case Management↗

PubMed2004

Using utility theory to optimize a salary incentive plan for grant-funded faculty.

PURPOSE: Few salary incentive plans for academic health center faculty funded primarily by research grants exist, and hence the optimal structure for such plans is uncertain. The author examined the impact of incentives and the optimal structure for a salary incentive plan for a group of research faculty at the Yale University School of Medicine (Yale). METHOD: A three-part instrument was delivered to a convenience sample of 40 faculty to determine the impact of their risk aversion on two salary plans. Utility theory was used to quantify their preferences for the Expense Model (salary bonuses are paid from direct costs of the research award) and the No Expense Model (salary increases are funded from another source). Outcomes were projected for both models over a range of funding probabilities. RESULTS: In all, 27 faculty responded. On average, Yale faculty had risk-averse (and therefore unfavorable) attitudes towards the Expense Model, with substantial variability in response depending on rank. In contrast, Yale faculty had more homogeneous risk seeking (and therefore favorable) responses to the No Expense Model. Cost recoveries were greatest for the No Expense Model. CONCLUSIONS: Utility modeling demonstrated that the optimal incentive payment for the Expense Model is substantially greater than for the No Expense Model, and increases as the probability of obtaining funding with diligent effort declines. For purposes of both equity and efficacy, the No Expense Model appears preferable to the Expense Model. Modeling can be used to determine optimal incentive-plans and bonus-payment magnitudes for research faculty.

Academic Medical Centers↗

PubMed2001

Physician incentives and the timing of cesarean sections: evidence from California.

OBJECTIVES: The timing of cesarean sections is studied to examine how physician convenience and financial incentives play a role in the decision to perform a cesarean section. METHODS: Using birth certificate and hospital financial data from California, the likelihood of cesarean sections being performed at particular times of day was examined, controlling for maternal characteristics and the mother's insurance coverage. Two diagnoses associated with cesarean sections are examined separately: fetal distress and prolonged/dysfunctional labor. The hypotheses are that cesarean sections performed for physician convenience are more likely to occur in the evening hours and that type of insurance will affect the incentive to perform cesarean sections to obtain leisure. RESULTS: The probability of cesarean sections for patients insured by a group-model HMO is more stable during the course of a day than that for patients insured by all other insurance plans. Group-model HMO patients with previous cesarean sections are less likely to have cesarean sections in the evening hours and are less likely to be diagnosed with fetal distress or prolonged/dysfunctional labor. CONCLUSIONS: The differences in cesarean sections and diagnosis rates between group-model HMO patients and other patients could arise from several mechanisms: group-model HMOs provide consistent financial incentives to their staff, they may be better able to guide physician practice, and they might provide staff support to physicians so there is less leisure-based incentive to perform cesarean sections. In contrast, nongroup-model HMOs do not appear to reduce the incentive of physicians to maximize leisure relative to traditional insurance.

California↗

PubMed2002

Randomized trial of 5 dollars versus 10 dollars monetary incentives, envelope size, and candy to increase physician response rates to mailed questionnaires.

BACKGROUND: The validity of the results of mailed surveys is often threatened by nonresponse bias, which is made more likely when response rates are low. However, the effectiveness and cost-effectiveness of several strategies to increase response rates are uncertain. OBJECTIVES: To assess three strategies to increase response rates to mailed physician surveys: including a 10 dollars versus a 5 dollars cash incentive in the initial mailing, including a mint candy or not, and using a large versus small outgoing envelope. RESEARCH DESIGN AND SUBJECTS: Using a 2 x 2 x 2 factorial design, a randomized trial of these strategies was conducted in a survey of 1200 physicians randomly selected from the American Medical Association's Master File. RESULTS: Including a 10 dollars incentive yielded a significantly higher response rate (60.5% vs. 52.8%) (P = 0.009). The mailing and incentive costs per completed response were 12.24 dollars (95% CI, 11.75 dollars, 13.64 dollars) in the 5 dollars group and 18.48 dollars (95% CI, 17.77 dollars, 20.69 dollars) in the 10 dollars group. Each additional response obtained in the 10 dollars group came at an incremental cost of 61.26 dollars (95% CI, 36.98 dollars, 200.80 dollars). Neither inclusion of a mint nor use of a large envelope influenced the response rate. CONCLUSIONS: Investigators may increase response rates by including more money in the initial questionnaire packet, but there may be diminishing returns to serial increments in incentives greater than 5 dollars. Including smaller incentives in more questionnaires may maximize total responses.

Candy↗

PubMed2002

Financial incentives for cadaver organ donation: an ethical reappraisal.

A panel of ethicists, organ procurement organization executives, physicians, and surgeons was convened by the sponsorship of the American Society of Transplant Surgeons to determine whether an ethically acceptable pilot trial could be proposed to provide a financial incentive for a family to consent to the donation of organs from a deceased relative. An ethical methodology was developed that could be applied to any proposal for monetary compensation to elucidate its ethical acceptability. An inverse relationship between financial incentives for increasing the families' consent for cadaver donation that clearly would be ethically acceptable (e.g., a contribution to a charity chosen by the family or a reimbursement for funeral expenses) and those approaches that would more likely increase the rate of donation (e.g., direct payment or tax incentive) was evident. The panel was unanimously opposed to the exchange of money for cadaver donor organs because either a direct payment or tax incentive would violate the ideal standard of altruism in organ donation and unacceptably commercialize the value of human life by commodifying donated organs. However, a majority of the panel members supported reimbursement for funeral expenses or a charitable contribution as an ethically permissible approach. The panel concluded that the concept of the organ as a gift could be sustained by a funeral reimbursement or charitable contribution that conveyed the appreciation of society to the family for their donation. Depending on the amount of reimbursement provided for funeral expenses, this approach could be ethically distinguished from a direct payment, by their intrusion into the realm of altruism and voluntariness. We suggest that a pilot project be conducted to determine whether this kind of a financial incentive would be acceptable to the public and successful in increasing organ donation.

Cadaver↗

PubMed2006

Attitudes toward financial incentives, donor authorization, and presumed consent among next-of-kin who consented vs. refused organ donation.

BACKGROUND: Financial incentives, donor authorization, and presumed consent are strategies designed to increase organ donation rates. Surveys designed to assess attitudes toward these initiatives have been conducted with the general public, transplant patients, and transplant professionals. METHODS: To assess attitudes toward financial incentives, donor authorization, and presumed consent and to identify multivariate predictors of such attitudes, we conducted telephone interviews with 561 family members who had recently been asked for consent to donate the organs of a deceased family member (348 donors, 213 nondonors). RESULTS: Financial incentives would have made a difference in the donation decision for 54% of nondonors (vs. 46% of donors, P=0.02), and a higher percentage of nondonors would themselves become donors if financial incentives were available (P=0.03). Donors had significantly more favorable attitudes toward donor authorization (P<0.0001) and presumed consent (P<0.0001) policies. Overall, 54% of participants thought that family permission for donation was unnecessary when the deceased documented their donation intention, and 24% favored a presumed consent law with an opting out provision. CONCLUSIONS: Of the three initiatives, donor authorization is likely supported by more donor and nondonor families than either financial incentives or presumed consent. Public education efforts should aim to better inform the public regarding existing and proposed donor authorization legislation and its benefits for registered organ donors and their families.

Adult↗

PubMed1996

The limits of Medicaid reimbursement incentives. An evaluation of the Florida AIDS Nursing Home Admission Program.

Provider incentive payments in the Medicaid program have been in operation nationally since the early 1980s. Although initially indicating favorable results, recently the ability of such incentives to produce the desired action has been questioned. This study examined the Florida Medicaid AIDS Nursing Home Admission Incentive Program to determine the reasons behind the program's apparent inability to increase Medicaid-covered persons with AIDS (PWAs) admissions to nursing homes. A survey of 308 nursing homes in the 10 Florida counties with the highest cumulative AIDS cases in the state was conducted. The results reveal that (a) the level of incentive reimbursement received, (b) the financial classification of existing (non-AIDS) residents, and (c) the level of technological sophistication of the facility are all significantly related to the number of PWAs admitted. Based on these results, the author discusses implications for the future of Medicaid incentive programs for PWAs.

Acquired Immunodeficiency Syndrome↗

PubMed2005

The effect of financial incentives on adherence with outpatient human immunodeficiency virus testing referrals from the emergency department.

OBJECTIVES: Undiagnosed human immunodeficiency virus (HIV) infection is not uncommon among patients who seek care in urban inner-city emergency departments (EDs). The optimal method for providing appropriate HIV counseling, testing, and referral in this setting is unclear. A previous evaluation of an outpatient referral system for HIV testing among patients seen in the ED demonstrated that only 11% returned to be tested; of those tested, 7% were seropositive. The purpose of this study was to evaluate the effect of a financial incentive on the proportion of referred ED patients who completed outpatient HIV counseling and testing. METHODS: This was a quasi-experiment performed at an urban county teaching hospital. ED patients identified using Centers for Disease Control and Prevention guidelines as being at risk for HIV infection were referred for outpatient HIV counseling and testing at our institution within one week. This study was divided into three study periods. During the first and third periods, no financial incentive was offered for completing HIV counseling and testing. During the second period, a 25 dollars incentive was offered for completing HIV counseling and testing. RESULTS: During the study, 372 patients were referred for HIV counseling and testing. During the control periods, 20 (8%) of 252 patients completed HIV counseling and testing; during the intervention period, 27 (23%) of 120 patients completed HIV counseling and testing (odds ratio, 3.4; 95% confidence interval = 1.8 to 6.3). Of the 47 patients who completed HIV counseling and testing, none (0%; 95% confidence interval = 0% to 8%) tested positive for HIV infection. CONCLUSIONS: The use of a modest financial incentive increased the proportion of patients who completed HIV counseling and testing after being referred from the ED. It is unclear whether the use of a financial incentive increases the identification of HIV-infected patients unaware of their status or if it is cost-effective.

Adult↗

PubMed2002

Volunteer faculty: what rewards or incentives do they prefer?

BACKGROUND: Clerkship directors and college administrators have concerns about recruitment and retention of practicing physicians for volunteer teaching. There is a paucity of data regarding the rewards and incentives offered to, or desired by, the nonsalaried community-based practicing physicians who volunteer their time to teach. PURPOSE: This study was designed to gain information about rewards and incentives from volunteer teachers in pediatric, family practice, and internal medicine clerkships. METHODS: We surveyed nonsalaried physician teachers of internal medicine, family medicine, and pediatrics across the United States. The survey focused on teachers' evaluation of the rewards or incentives offered by the programs in the following categories: educational opportunities, services or gifts, recognition bestowed by the school, academic appointments, and monetary payments. Respondents rated each item from 1 (not appreciated) to 5 (very much appreciated). They also were asked to rank order the rewards or incentives (with the addition of a category of personal satisfaction) from 1 (least appreciated) to 6 (most appreciated). RESULTS: Educational opportunities received high ratings, especially when the school bore the cost of providing a service. Payment for teaching was offered to 37% of the respondents, and those who were paid rated it higher. Overall, payment for teaching had a mean appreciation score of 3.94, second only to travel and meeting registration reimbursement (4.27). However, in the rank order listing, personal satisfaction had the highest rank (5.16). In contrast, payment for teaching (2.92) and gifts or services from the college (2.53) were at the bottom of the rank order. CONCLUSION: The survey asked practicing physicians the value they placed on awards and incentives provided to them by the college. This information should help administrators and clerkship directors in recruiting and retaining community-based practicing physicians for teaching.

Clinical Clerkship↗

PubMed2000

The effect of modest monetary incentives on follow-up rates in sexually transmitted disease studies.

The purpose of the study was to determine if follow-up rates in sexually transmitted disease (STD) research could be improved by offering modest monetary incentives. Women aged 14-34, infected with Chlamydia trachomatis, and enrolled in either of 2 studies between May 1995 and January 1999 were included. Beginning in March 1996 participants were offered a $20 incentive to return to both the one- and four-month follow-up visits. Data were analysed using polychotomous logistic regression. Of 962 women followed, the majority (74.7%) received monetary incentives and 66% returned for at least one visit. Women who received the incentive were more likely (OR 1.9, CI 1.2-2.9) to return for either one or both of their follow-up visits after adjusting for interviewer and the months of work experience of that interviewer. Age and method of birth control were not associated with return rates. The study provides evidence that modest monetary incentives can improve follow-up rates.

Adolescent↗

PubMed2003

Why liberals should accept financial incentives for organ procurement.

Free market libertarians have long supported incentives to increase organ procurement, but those oriented to justice traditionally have opposed them. This paper presents the reasons why those worried about justice should reconsider financial incentives and tolerate them as a lesser moral evil. After considering concerns about discrimination and coercion and setting them aside, it is suggested that the real moral concern should be manipulation of the neediest. The one offering the incentive (the government) has the resources to eliminate the basic needs that pressure the poor into a willingness to sell. It is unethically manipulative to withhold those resources and then offer payment for organs. Nevertheless, the poor have been left without basic necessities for 20 years since the passage of the prohibition on incentives. As long as the government continues to withhold a decent minimum of welfare, liberals should, with shame, cease opposing financial incentives for organ procurement.

Coercion↗

PubMed1986

Absence of benefit of incentive spirometry in low-risk patients undergoing elective cholecystectomy. A controlled randomized study.

To determine the potential benefit of incentive spirometry, which has been advocated to prevent pulmonary complications after upper-abdominal surgery, we compared a group of patients receiving incentive spirometry to another group receiving no specialized postoperative respiratory care. Forty patients in the American Society of Anesthesiologists' class 1 and 2 who were undergoing cholecystectomy (through right subcostal incision) were included in the study and were randomly allocated to one of the two groups. Patients receiving incentive spirometry were encouraged by a specialized respiratory physiotherapist to breathe deeply for five minutes hourly, 12 times daily, for three postoperative days. No statistically significant difference between the two groups was found in the radiologic evidence of postoperative pulmonary complications, arterial oxygen pressure, spirometric measurement, and clinical evaluation at the second or fourth postoperative day (or both). In particular, deterioration on the chest x-ray film at the fourth postoperative day was observed in eight of 20 patients in the group receiving incentive spirometry and in six of 20 in the control group. Our study confirms the postoperative deterioration of respiratory function after upper-abdominal surgery and demonstrates the lack of therapeutic values of incentive spirometry in these patients at low risk for pulmonary complications.

Adult↗

PubMed2002

The SUCCESS project: the effect of program format and incentives on participation and cessation in worksite smoking cessation programs.

OBJECTIVES: This study examined the effect of program format and incentives on participation and cessation in worksite smoking cessation programs. METHODS: Twenty-four worksites were randomized to 6 conditions that differed in cessation program format and the use of incentives. Programs were offered for 18 months in each worksite. A total of 2402 cigarette smokers identified at baseline were surveyed 12 and 24 months later to assess participation in programs and cessation. RESULTS: A total of 407 (16.9%) of the smoker cohort registered for programs; on the 12- and 24-month surveys, 15.4% and 19.4% of the cohort, respectively, reported that they had not smoked in the previous 7 days. Registration for programs in incentive sites was almost double that of no-incentive sites (22.4% vs 11.9%), but increased registration did not translate into significantly greater cessation rates. Program type did not affect registration or cessation rates. CONCLUSIONS: Although incentives increase rates of registration in worksite smoking cessation programs, they do not appear to increase cessation rates. Phone counseling seems to be at least as effective as group programs for promoting smoking cessation in worksites.

Adult↗