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Results for “mixed methods”

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PubMed2004

Use of outcomes information in acute inpatient rehabilitation.

OBJECTIVE: To describe the ways in which rehabilitation outcomes information is used in the acute inpatient rehabilitation industry and the industry's views on the topic of public disclosure of rehabilitation outcomes information. DESIGN: A mixed-methods approach, featuring data from 39 informational telephone interviews with rehabilitation industry stakeholders followed by a survey of 95 randomly sampled acute inpatient rehabilitation provider organizations. RESULTS: Both the informational interviews and survey findings revealed that there is currently little stakeholder demand for functional outcomes information. Outcomes information is primarily used within provider organizations to track the effectiveness of rehabilitation services. There is general consensus among rehabilitation provider organizations in favor of public disclosure of outcomes information. CONCLUSIONS: Outcomes information is not routinely shared with rehabilitation stakeholders (i.e., payers and consumers). Rehabilitation providers and industry stakeholders generally express favorable attitudes toward public disclosure of outcomes information. Stakeholders' perceptions of current barriers and facilitators of outcomes information provide insight into the steps that can be taken toward greater transparency in the rehabilitation industry.

Activities of Daily Living↗

PubMedDate not supplied

Communication and end-of-life care in the intensive care unit: patient, family, and clinician outcomes.

Even though good communication among clinicians, patients, and family members is identified as the most important factor in end-of-life care in ICUs, it is the least accomplished. According to accumulated evidence, communication about end-of-life decisions in ICUs is difficult and flawed. Poor communication leaves clinicians and family members stressed and dissatisfied, as well as patients' wishes neglected. Conflict and anger both among clinicians and between clinicians and family members also result. Physicians and nurses lack communication skills, an essential element to achieve better outcomes at end of life. There is an emerging evidence base that proactive, multidisciplinary strategies such as formal and informal family meetings, daily team consensus procedures, palliative care team case finding, and ethics consultation improve communication about end-of-life decisions. Evidence suggests that improving end-of-life communication in ICUs can improve the quality of care by resulting in earlier transition to palliative care for patients who ultimately do not survive and by increasing family and clinician satisfaction. Both larger, randomized controlled trials and mixed methods designs are needed in future work. In addition, research to improve clinician communication skills and to assess the effects of organizational and unit context and culture on end-of-life outcomes is essential.

Communication↗

PubMedDate not supplied

Experience of fatigue in adolescents living with cancer.

This article reports on a small-scale exploratory study conducted with cohorts of adolescents during and after treatment of cancer to explore experiences of fatigue and perceptions of its impact on functioning. A concurrent mixed method design was used to enable detailed understanding of the phenomenon of fatigue in these groups of individuals through convergence of quantitative and qualitative data. Participants completed an investigator-designed Fatigue and Quality of Life Diary for a period of 1 week. Second, they took part in a semistructured interview to explore issues around fatigue and functioning in more detail. Eight adolescents undergoing treatment participated in the study, along with 6 in early remission (1-2 years off treatment) and 8 receiving follow-up (5 or more years off treatment). Data gained from these sources suggested that fatigue can be a considerable problem for adolescents during and after treatment, and that it may not necessarily abate quickly. Some individuals perceived that their quality of life remained compromised many years after treatment, and it seemed that fatigue might play an important part in this. These preliminary findings suggest that research into management of fatigue in this adolescent group is warranted, along with research and development to determine how best to provide supportive care once treatment finishes.

Activities of Daily Living↗

PubMed2003

A model for evaluating the context of nursing care delivery.

This study used a mixed method to test a model of demands on nurses. Factors were identified that affect demands, and a model was tested using structural equation modeling. Teamwork and expertise had significant effects on nurse-sensitive outcomes. Leadership was a strong determinant of stability and expertise. Workload was not a significant predictor of outcomes, but this is likely due to the difficulty in measuring nursing work. These results provide administrators with actionable recommendations that can be used to reduce the demands on nursing staff.

Attitude of Health Personnel↗

PubMed1992

Case-mix groups for VA hospital-based home care.

The purpose of this study is to group hospital-based home care (HBHC) patients homogeneously by their characteristics with respect to cost of care to develop alternative case mix methods for management and reimbursement (allocation) purposes. Six Veterans Affairs (VA) HBHC programs in Fiscal Year (FY) 1986 that maximized patient, program, and regional variation were selected, all of which agreed to participate. All HBHC patients active in each program on October 1, 1987, in addition to all new admissions through September 30, 1988 (FY88), comprised the sample of 874 unique patients. Statistical methods include the use of classification and regression trees (CART software: Statistical Software; Lafayette, CA), analysis of variance, and multiple linear regression techniques. The resulting algorithm is a three-factor model that explains 20% of the cost variance (R2 = 20%, with a cross validation R2 of 12%). Similar classifications such as the RUG-II, which is utilized for VA nursing home and intermediate care, the VA outpatient resource allocation model, and the RUG-HHC, utilized in some states for reimbursing home health care in the private sector, explained less of the cost variance and, therefore, are less adequate for VA home care resource allocation.

Aftercare↗

PubMed2002

Biodistribution and dosimetry of [(18)F]fluorodeoxyglucose labelled leukocytes in normal human subjects.

SUMMARY: This study was performed in order to assess [(18)F]fluorodeoxyglucose white blood cell ((18)F-FDG WBC) dosimetry in normal human subjects. Using previously reported methods, mixed cell suspensions of autologous leukocytes were prepared from four normal volunteers. Leukocytes were labelled in heparin-saline by incubation with (18)F-FDG at 37 degrees C for 20 min. After washing and resuspension, (18)F-FDG WBCs (225-315 MBq) were administered by intravenous injection. Whole-body imaging was performed at 0.5, 1, 2, 4 and 6 h using a GE Varicam with 511 keV collimation. Blood samples were obtained at corresponding times as well as fractionated urinary collection. Whole-body anterior and posterior images were used for calculation of organ dosimetry. Uptake of (18)F-FDG WBCs occurred predominantly within the reticulo-endothelial system. Plasma activity, urinary excretion (9.9+/-2.3% at 6 h), and brain uptake (1.7+/-0.4%) were consistent with partial elution of (18)F-FDG. Positron emission tomography imaging performed at 5-6 h after injection yielded good quality images of reticulo-endothelial uptake. Whole-body and organ dosimetry for (18)F-FDG WBCs in doses of 225-250 MBq are comparable with reported results for conventional doses of (111)In oxine labelled leukocytes. Further studies of (18)F-FDG WBC as an agent for positron emission tomography imaging of inflammatory disease appear warranted.

Fluorodeoxyglucose F18↗

PubMed1998

Donor-specific portal blood transfusion in intestinal transplantation: a prospective, preclinical large animal study.

BACKGROUND: Unlike in kidney and heart transplantation, the role of pretransplant donor-specific blood transfusion (DST) has not been studied prospectively in a large animal model of bowel transplantation. We investigated the impact of portal versus systemic DST on overall survival, rejection, graft-versus-host disease (GVHD), and infection after total (small and large) bowel transplantation in pigs. METHODS: Mixed lymphocyte culture-reactive, outbred pigs underwent total enterectomy and orthotopic total bowel transplantation with portal vein graft drainage. One unit of donor blood was transfused via the portal or systemic circulation (according to a randomization protocol) before graft implantation was begun. We studied six groups, all of which underwent at least a total bowel transplant: group 1 (n=5) comprised nonimmunosuppressed control pigs with portal DST; group 2 (n=6), nonimmunosuppressed control pigs with systemic DST; group 3 (n=5), cyclosporine (CsA)-treated pigs with portal DST; group 4 (n=5), CsA-treated pigs with systemic DST; group 5 (n=5), tacrolimus-treated pigs with portal DST; and group 6 (n=5), tacrolimus-treated pigs with systemic DST. All immunosuppressed pigs received prednisone (2 mg/kg/day) and either CsA (to maintain levels between 250 and 350 ng/ml) or tacrolimus (to maintain levels between 10 and 30 ng/ml). Stomal biopsies and autopsies were obtained to study the incidence of rejection, GVHD, and infection. RESULTS: Portal DST and tacrolimus-based immunosuppression resulted in the highest survival rates. At 7, 14, and 28 days after transplantation, survival rates in group 5 were 100%, 100%, and 80%; in group 6, 100%, 60%, and 40%; and in group 3, 100%, 0%, and 0%, respectively. Only the combination of portal DST and tacrolimus prevented the occurrence of, and death from, rejection. Death from rejection at 7, 14, and 28 days in group 5 was 0%, 0%, and 0%; in group 6, 0%, 33%, and 67%; and in group 3, 0%, 100%, and 100%, respectively. Of note, if immunosuppression was used, the groups with portal (versus systemic) DST had a higher risk of death from infection but a lower risk of death from GVHD. Simultaneous immunologic events were noted more frequently in groups with systemic (versus portal) DST. Long-term survival was noted only in groups with tacrolimus-based immunosuppression and was more common for those with portal (versus systemic) DST. CONCLUSIONS: Portal DST at the time of total bowel transplantation and posttransplant immunosuppression with tacrolimus prevent rejection and significantly increase graft survival. The combination of portal antigen presentation and tacrolimus needs to be studied in clinical bowel transplantation.

Animals↗

PubMed2006

Modified directly observed therapy to facilitate highly active antiretroviral therapy adherence in Beira, Mozambique. Development and implementation.

As resource-limited countries expand access to highly active antiretroviral therapy (HAART) treatment, innovative programs are needed to support adherence in the context of significant health system barriers. Modified directly observed therapy (mDOT) is one such strategy, but little is known about the process of designing and implementing mDOT programs for HAART in resource-limited settings. In this descriptive study, we used a mixed-methods approach to describe the process of implementing mDOT for an ongoing randomized control trial (RCT) in Beira, Mozambique. Interviews with clinic staff, mDOT peers, and participants provided information on design elements, problems with implementation, satisfaction, and benefits. Acceptability and feasibility measures were obtained from the RCT. Most (81%, N = 350) eligible persons agreed to participate, and of those randomized to mDOT (n = 174), 95% reported that their time with peers was beneficial. On average, participants kept 93% of the 30 required daily mDOT visits. Key components of the intervention's success included using peers who were well accepted by clinic staff, adequate training and retention of peers, adapting daily visit requirements to participants' work schedules and physical conditions, and reimbursing costs of transportation. This study identified aspects of mDOT that are effective and can be adopted by other clinics treating HIV patients.

Adult↗

PubMed2003

Tubulitis in renal allograft rejection: role of transforming growth factor-beta and interleukin-15 in development and maintenance of CD103+ intraepithelial T cells.

BACKGROUND: Renal tubules normally show no lymphocyte infiltration, but tubulitis is a feature of renal allograft rejection with many intratubular T cells expressing CD8 and CD103 (the alphaEbeta7 integrin). We investigated the development and maintenance of allospecific CD103 T cells within the tubular microenvironment. METHODS: Mixed lymphocyte cultures were supplemented with transforming growth factor (TGF)-beta1 to model the expression and function of CD103 observed in situ on intratubular lymphocytes. Immunocytochemical techniques were used to identify cells coexpressing CD8 and interleukin (IL)-15Ralpha, to enumerate proliferating intratubular T cells, and to quantify IL-15 expression within the tubules of control and rejection-graded transplant biopsy specimens. These results were compared with a parallel analysis of the phenotype and proliferation of allospecific T cells expanded in vitro in the presence of TGF-beta1 and IL-15. RESULTS: TGF-beta1 only induced the expression of adhesive CD103 after at least one cycle of alloantigen-specific cell division in vitro. In the renal allograft, a similar proportion of intratubular T cells was observed to proliferate during and after acute rejection. Tubular epithelial cells expressed IL-15 constitutively, whereas intratubular CD8 T cells expressed IL-15 receptor alpha. IL-15 and TGF-beta1 synergized to promote expansion and survival of allospecific CD8 CD103 T cells in vitro, but IL-15 down-regulated perforin expression. CONCLUSIONS: These results suggest that activated, allospecific CD8 T cells are recruited to tubules during acute rejection where they encounter TGF-beta, up-regulate CD103 expression, and bind E-cadherin. A proportion of these cells proliferates and is maintained in a state of low perforin expression by the combined action of TGF-beta and IL-15.

Antigens, CD↗

PubMed2003

Keratinocytes induce local tolerance to skin graft by activating interleukin-10-secreting T cells in the context of costimulation molecule B7-H1.

BACKGROUND: Intermingled skin grafting using autologous skin islets inlaid in allogeneic skin sheets was found to delay graft rejection, contributing to a significant reduction in mortality for patients with severe burns. In this study we examine the down-regulatory mechanisms underlying the effect of the autologous skin islets. METHODS: Mixed culture of lymphocytes with epidermal cells of autologous and allogeneic origin were performed with a comparing of cell activity from cytokine-knockout mice. And the Th1/Th2-related cytokine profiles were examined. RESULTS: Autologous keratinocytes act as potent inducers of suppression in the mixed culture by making a shift of the cytokine profile from Th1 to Th2. The observed suppression is predominantly mediated by interleukin (IL)-10, because the effect could be reversed by application of a neutralizing antibody to IL-10. The results of reconstitution experiments in BALB/c mice, with or without IL-10 gene-knockout, are consistent with this finding. These demonstrated that T cells were main effective components for the IL-10-related suppression. Furthermore, a newly identified member of the human B7 family (B7-H1) is found to play an important role in activating human IL-10-secreting lymphocytes. When transfected with the CD80 gene, autologous keratinocytes lost the ability to down-regulate the mixed cell culture, which effect could be reversed by introduction of the anti-CD80 antibody. CONCLUSIONS: Our study provides new evidence that autologous keratinocytes present in intermingled skin grafts are inducers for local immune tolerance by expression of B1-H1 in their activation of the IL-10-secreting T cells.

Animals↗

PubMed2003

In vitro studies of the role of CD3+ and CD56+ cells in fetal liver cell alloreactivity.

BACKGROUND: Previous functional studies have suggested that fetal liver cells (FLC) are capable of responding to allogeneic stimulation and have allostimulatory capacity by early in the second trimester. The present study was designed to analyze whether the allogenic response in human FLC is restricted to HLA class II expression and to evaluate the role of CD3+ cells (T cells) and CD56+ cells (natural killer cells) in the allogenic response. METHODS: Mixed lymphocyte culture (MLC) experiments were performed on human FLC, at 14 to 18 gestational weeks, before and after depletion of HLA class II+ cells from the stimulator FLC pool (6-11 gestational weeks) and before and after depletion of CD3+ and CD56+ cells from the responder population. RESULTS: Depletion of HLA class II+ cells from the stimulator FLC pool resulted in a decreased response in 9 of 12 initially positive MLCs. CD3+ cell depletion from responder FLC resulted in a decreased response in four of seven experiments with peripheral blood lymphocytes as stimulators and in two of five experiments with FLC as stimulators. Depletion of CD56+ cells from responder FLC resulted in a decreased response in five of seven initially positive MLCs with peripheral blood lymphocytes as stimulators and two of five with FLC as stimulators. CONCLUSIONS: The results indicate that FLC are capable of alloresponsiveness when studied in MLC and that the response seems to be HLA class II dependent. Depletion of CD3+ or CD56+ cells led to a reduction in the MLC in a majority of the experiments. The question remains how these cells interact; it is likely that both cell types exhibit complementary effects in the early allogenic response.

Abortion, Therapeutic↗

PubMed2006

Combination effect of mycophenolate mofetil with mizoribine on cell proliferation assays and in a mouse heart transplantation model.

BACKGROUND: Mycophenolate mofetil (MMF) is a highly potent immunosuppressant that suppresses the proliferation of T and B cells by the uncompetitive inhibition of inosine monophosphate dehydrogenase (IMPDH). Consequently, under MMF immunosuppression, good graft survival has been achieved in clinical organ transplantation, although MMF shows adverse gastrointestinal effects. Mizoribine (MZ) also inhibits IMPDH in a competitive manner and is used clinically for organ transplantation in Japan as an immunosuppressant with fewer adverse gastrointestinal effects. Therefore, in this study we investigated the synergistic effects on in vitro and in vivo assays of mice of a combination of MMF with MZ immunosuppression. METHODS: Mixed lymphocyte reaction (MLR) assay and a mouse heart transplantation model were used to evaluate the immunosuppressive effect of MMF with MZ. The median-effect principle and a combination index (CI) were employed to determine synergism, an additive effect, or antagonism. RESULTS: Combination of MMF with MZ resulted in mild synergistic effects in the inhibition of MLR (CI = 0.854-1.143). In the mouse heart transplantation model, C57BL/6 recipients who received a BALB/c heart under the combination of MMF and MZ at 40 + 40 or 80 + 80 mg/kg/day showed a strong synergistic prolongation of graft survival with 19.7 +/- 18.9 (P = 0.0012, CI = 0.438) and 78.4 +/- 36.9 days (P = 0.0002, CI = 0.317), respectively, compared with recipients treated with MMF or MZ monotherapy. CONCLUSIONS.: The combination of MMF and MZ showed mild synergistic effects in the inhibition of MLR and strong synergistic effects in a mouse heart transplantation model.

Animals↗

PubMed2026

Improving insurance deduction identification: a hybrid artificial intelligence model using machine learning and expert systems.

PURPOSE: Financial challenges in healthcare systems worldwide, especially in low- and middle-income countries like Iran, have increased hospitals' reliance on insurance reimbursements. Unrecognized insurance deductions often cause severe financial shortages, making efficient deduction management crucial. This study aimed to design a hybrid intelligent system for identifying and predicting insurance deductions by combining machine learning and expert system frameworks. DESIGN/METHODOLOGY/APPROACH: A mixed-methods design was applied in four stages. First, a scoping review identified the causes and patterns of insurance deductions. Second, interviews with 15 insurance experts produced a validated checklist and a dataset from inpatient billing records. Third, using the CRISP-DM methodology, machine learning algorithms were developed and tested in SPSS Modeler alongside a fuzzy expert system developed in MATLAB. Finally, the model was validated using the holdout method. FINDINGS: Four categories of deduction drivers were identified: service provision, registration errors, document submission issues, and revenue conversion processes. The CHAID decision tree outperformed other algorithms with a 99% precision rate and the lowest Mean Absolute Error (9.43). A brief assessment of potential overfitting was conducted to ensure that the CHAID model's high accuracy was interpreted cautiously and supported by the validation results. The fuzzy expert system with validated rules was adaptable for deduction classification, especially for cases unsuitable for quantitative modeling. ORIGINALITY/VALUE: The hybrid model improves detection and prevention of deductions, offering actionable insights for hospital administrators, insurers, and policymakers. Its implementation can enhance hospital information systems, streamline claims processing, and optimize revenue management amid financial constraints.

Machine Learning↗

PubMed2006

Characteristics of nosologically informative data sets that address key diagnostic issues facing the Diagnostic and Statistical Manual of Mental Disorders, fifth edition (DSM-V) and International Classification of Diseases, eleventh edition (ICD-11) substance use disorders workgroups.

AIMS: Over the past two decades, many nosological issues have been addressed by the Diagnostic and Statistical Manual of Mental Disorders (DSM) and International Classification of Diseases (ICD) substance use disorders workgroups. Even with those efforts, there are key issues that have not been resolved and must be revisited, or addressed de novo, by the workgroups. These lingering points are broad, due to the array of substances classified under the diagnostic umbrella of substance use disorders. They include substantive issues ranging from dimensional approaches, similar criteria for each substance, cut-points and thresholds, distinct abuse and dependence classifications, new criteria and drugs, to less substantive ones, such as the adjectives used to describe the severity of the behaviors. RESULTS: This paper describes the characteristics of the data sets that will be needed to resolve the key nosological issues. Ten points are described: (1) data must be true to nomenclature under study; (2) flexible regarding rearrangements of scoring algorithms; (3-4) able to assess substances individually and retain former versions of the criteria; (5) not rely on shortened versions; (6) utilize samples that are generalizable; (7) make diagnoses with transparent algorithms; (8) combine mixed methods for corroborating data; (9) utilize assessments that collect reliable and valid diagnoses and criteria; and (10) stretch the limits by allowing for new discoveries. CONCLUSIONS: This paper describes each of these and gives examples of the limitations and strengths of data for the purpose of defining a useful, unified concept of addictive behaviors.

Algorithms↗

PubMed2004

Perinatal depression among black Caribbean women.

The present paper describes findings from a mixed-method, longitudinal cohort study into perinatal depression among black Caribbean women. Using symptom scores from the Edinburgh Postnatal Depression Scale (EPDS), 101 black Caribbean and 200 white British women accessing maternity services in Manchester, UK, were screened for depressive symptoms in the last trimester of pregnancy and 6 weeks following delivery. The purpose of the study, which was undertaken between February 2000 and February 2001, was to estimate the prevalence of depressive symptoms during and after pregnancy among black Caribbean women compared to white British women in the same geographical area, and to explore black Caribbean women's beliefs about perinatal depression and their attitudes to help-seeking. Despite higher levels of self-reported risk, black Caribbean women were less likely than white British women to score above threshold (EPDS > or = 12) during pregnancy (chi2 = 4.16, d.f. = 1, P = 0.041). Although equally likely to score above threshold postnatally, they were less likely to receive treatment (chi2 = 4.20, d.f. = 1, P = 0.040) and more likely to be referred to secondary care (Fisher's Exact Test, P = 0.049). Qualitative findings suggest important differences between black Caribbean women's beliefs, attitudes and associated help-seeking practices, and those previously reported. Lower rates of depressive symptoms might partly be accounted for by conceptualisations of mental illness which differ from those of white British and South Asian women, and mistrust of the mental health services. This study showed that black Caribbean ethnicity is an important dimension in understanding the social patterning of mental illness. The findings have implications for the equitable provision of primary care services since black Caribbean women experienced depressive symptoms in pregnancy and early motherhood, but were less likely than their white British counterparts to receive treatment.

Adult↗

PubMed2006

The outcomes of partnerships with mental health service users in interprofessional education: a case study.

This paper reports findings from a 5-year evaluation (1998-2003) of a postqualifying programme in community mental health in England which made a sustained attempt to develop partnerships with service users. Users were involved in the commissioning of the programme and its evaluation, as trainers and as course members. The evaluation employed mixed methods to assess: learners' reactions to user-trainers and users as course members; changes in knowledge, attitudes and skills; and changes in individual and organisational practice. Data were collected from participant observation of training, 23 individual and 18 group interviews with students and their managers (n=13), and student ratings of knowledge and skills at the beginning and end of the programme (n=49). The quality of care provided by students was rated by service users (n=120) with whom they worked, using a user-defined questionnaire. The quality of care, and mental health and quality of life outcomes were compared to those for two comparison groups (n=44) in areas where no training had taken place. In general, the students reported positive learning outcomes associated with the partnership orientation of the programme, and learning directly from and with service users. A higher proportion of programme users reported good user-centred assessment and care planning, and showed greater improvement in life skills compared to the comparators. This case study provides evidence of the value of partnership working with service users in interprofessional postqualifying education in mental health. The success is attributed to the design of the programme and the responsiveness of the programme board, which included service users. It may provide a useful model for programmes elsewhere and for other user groups. The case study itself provides a possible model for the systematic evaluation of partnerships with users in education and training.

Community Mental Health Services↗

PubMed2007

The process of health visiting and its contribution to parental support in the Starting Well demonstration project.

Significant resources are being directed at interventions designed to attenuate the effects of deprivation on children's health and development. The Starting Well demonstration project, established in two deprived areas within a Scottish city, aimed to show that a programme of planned activities to support families could improve child health. The project was subject to a main quantitative evaluation and several additional qualitative and mixed-method evaluations. The present paper draws on findings from one of the qualitative studies that sought to gain insight into how interventions provided by health visitors were operationalised and how they were perceived by parents. The particular focus of this paper is how the process of health visiting resulted in parents' perceptions of being supported. A longitudinal design captured variation in work undertaken by health visitors and temporal changes in maternal experiences of child rearing. Semi-structured interviews were conducted with 20 mothers and their health visitors at two time points, i.e. when infants were 3-4 and 9-10 months old. Sampling was 'purposive', and included first-time and experienced mothers. The findings reported here are based on 59 interviews carried out during 2002 and 2003. The analysis involved a thematic approach focused on programme implementation, and participant perceptions about process and benefit. Parental perceptions of being supported were exemplified by increased confidence in infant care, reduced anxiety regarding infant care needs, increases in knowledge and sense of personal competence in parenting practices, reduced isolation, and advocacy for those experiencing problems. A selection of the interactional processes that resulted in these forms of perceived support are reported, including methods of providing information, cautious and tactful questioning of maternal decision-making, and encouragement of successful parenting practice. The implications for practice, service delivery and targeting at the individual level are noted.

Female↗

PubMed2004

Methodological rigour within a qualitative framework.

AIM: This paper discusses the literature on establishing rigour in research studies. It describes the methodological trinity of reliability, validity and generalization and explores some of the issues relating to establishing rigour in naturalistic inquiry. BACKGROUND: Those working within the naturalistic paradigm have questioned the issue of using validity, reliability and generalizability to demonstrate robustness of qualitative research. Triangulation has been used to demonstrate confirmability and completeness and has been one means of ensuring acceptability across paradigms. Emerging criteria such as goodness and trustworthiness can be used to evaluate the robustness of naturalistic inquiry. DISCUSSION: It is argued that the transference of terms across paradigms is inappropriate; however, if we reject the concepts of validity and reliability, we reject the concept of rigour. Rejection of rigour undermines acceptance of qualitative research as a systematic process that can contribute to the advancement of knowledge. Emerging criteria for demonstrating robustness in qualitative inquiry, such as authenticity, trustworthiness and goodness, need to be considered. Goodness, when not seen as a separate construct but as an integral and embedded component of the research process, should be useful in assuring quality of the entire study. Triangulation is a tried and tested means of offering completeness, particularly in mixed-method research. When multiple types of triangulation are used appropriately as the 'triangulation state of mind', they approach the concept of crystallization, which allows for infinite variety of angles of approach. CONCLUSION: Qualitative researchers need to be explicit about how and why they choose specific legitimizing criteria in ensuring the robustness of their inquiries. A shift from a position of fundamentalism to a more pluralistic approach as a means of legitimizing naturalistic inquiry is advocated.

Humans↗