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Pragmatic Free Trial Meta<br><br>Pragmatic Free Trial Meta is a free and non-commercial open data platform and infrastructure that facilitates research on pragmatic trials. It collects and distributes cleaned trial data, ratings and evaluations using PRECIS-2. This allows for a variety of meta-epidemiological analyses to examine the effect of treatment across trials of various levels of pragmatism.<br><br>Background<br><br>Pragmatic studies provide real-world evidence that can be used to make clinical decisions. The term "pragmatic", however, is a word that is often used in contradiction and its definition and evaluation require further clarification. The purpose of pragmatic trials is to inform clinical practice and  [https://bookmarkjourney.com/story18119474/pragmatic-slots-return-rate-tips-from-the-top-in-the-industry 프라그마틱 슬롯 무료][https://socialbraintech.com/story3359469/how-to-design-and-create-successful-pragmatic-free-trial-meta-how-tos-and-tutorials-to-create-successful-pragmatic-free-trial-meta-home 프라그마틱 슬롯 체험] ([https://bookmarklinx.com/story18184424/this-is-how-pragmatic-will-look-like-in-10-years-time additional hints]) policy decisions, not to confirm an hypothesis that is based on a clinical or physiological basis. A pragmatic study should strive to be as close as is possible to the real-world clinical practice that include recruiting participants, setting, designing, delivery and implementation of interventions, determination and analysis outcomes, and primary analysis. This is a significant difference between explanation-based trials, as described by Schwartz and  [https://bookmarkjourney.com/story18120872/what-pragmatic-free-trial-meta-experts-want-you-to-learn 프라그마틱 정품확인] Lellouch1, which are designed to confirm a hypothesis in a more thorough way.<br><br>The most pragmatic trials should not conceal participants or clinicians. This can result in bias in the estimations of treatment effects. The pragmatic trials also include patients from different health care settings to ensure that the outcomes can be compared to the real world.<br><br>Finally, pragmatic trials must be focused on outcomes that matter to patients, such as quality of life and functional recovery. This is particularly important for trials involving the use of invasive procedures or potential dangerous adverse events. The CRASH trial29, for example, focused on functional outcomes to compare a 2-page case-report with an electronic system to monitor the health of patients admitted to hospitals with chronic heart failure. Similarly, the catheter trial28 utilized symptomatic catheter-associated urinary tract infections as its primary outcome.<br><br>In addition to these features pragmatic trials should reduce the procedures for conducting trials and requirements for data collection to reduce costs and time commitments. Additionally pragmatic trials should try to make their results as applicable to real-world clinical practice as is possible by making sure that their primary analysis follows the intention-to treat approach (as described in CONSORT extensions for pragmatic trials).<br><br>Despite these requirements however, a large number of RCTs with features that defy the concept of pragmatism have been mislabeled as pragmatic and published in journals of all kinds. This can lead to misleading claims of pragmatism and the usage of the term should be made more uniform. The development of a PRECIS-2 tool that provides a standardized objective evaluation of pragmatic aspects is a good start.<br><br>Methods<br><br>In a pragmatic trial the goal is to inform clinical or policy decisions by demonstrating how the intervention can be integrated into everyday routine care. This is distinct from explanation trials, which test hypotheses about the cause-effect relationship in idealised situations. Therefore, pragmatic trials might have less internal validity than explanatory trials and may be more susceptible to bias in their design, conduct and analysis. Despite their limitations, pragmatic research can be a valuable source of information for decision-making within the healthcare context.<br><br>The PRECIS-2 tool scores an RCT on 9 domains, ranging between 1 and 5 (very pragmatist). In this study, the areas of recruitment, organization and flexibility in delivery, flexibility in adherence, and follow-up were awarded high scores. However, the main outcome and the method for missing data scored below the pragmatic limit. This suggests that it is possible to design a trial with high-quality pragmatic features, without compromising the quality of its results.<br><br>It is, however, difficult to judge the degree of pragmatism a trial really is because pragmaticity is not a definite quality; certain aspects of a study can be more pragmatic than others. Moreover, protocol or logistic modifications made during a trial can change its score in pragmatism. Koppenaal and colleagues discovered that 36% of 89 pragmatic studies were placebo-controlled or conducted prior to the licensing. The majority of them were single-center. This means that they are not as common and can only be described as pragmatic if their sponsors are tolerant of the absence of blinding in these trials.<br><br>A common feature of pragmatic studies is that researchers try to make their findings more meaningful by studying subgroups of the trial sample. This can lead to imbalanced analyses and less statistical power. This increases the chance of omitting or ignoring differences in the primary outcomes. In the case of the pragmatic trials included in this meta-analysis, this was a major issue because the secondary outcomes were not adjusted for differences in baseline covariates.<br><br>Additionally practical trials can present challenges in the collection and interpretation of safety data. This is because adverse events are usually self-reported and are prone to delays in reporting, inaccuracies, or coding variations. It is therefore crucial to improve the quality of outcome ascertainment in these trials, ideally by using national registry databases instead of relying on participants to report adverse events on the trial's database.<br><br>Results<br><br>While the definition of pragmatism does not require that all clinical trials are 100% pragmatic There are advantages of including pragmatic elements in trials. These include:<br><br>By including routine patients, the trial results can be more quickly translated into clinical practice. However, pragmatic trials may also have disadvantages. For instance, the right kind of heterogeneity can allow the trial to apply its findings to a variety of patients and settings; however the wrong type of heterogeneity could reduce assay sensitiveness and consequently reduce the power of a study to detect even minor effects of treatment.<br><br>Numerous studies have attempted to categorize pragmatic trials with a variety of definitions and scoring systems. Schwartz and Lellouch1 created an approach to distinguish between research studies that prove a clinical or physiological hypothesis, and pragmatic trials that help in the selection of appropriate treatments in the real-world clinical setting. The framework consisted of nine domains evaluated on a scale of 1-5 with 1 being more informative and 5 was more practical. The domains included recruitment of intervention, setting up, delivery of intervention, flex adherence and primary analysis.<br><br>The original PRECIS tool3 had similar domains and a scale of 1 to 5. Koppenaal and colleagues10 developed an adaptation of this assessment called the Pragmascope that was simpler to use in systematic reviews. They found that pragmatic systematic reviews had higher average scores in the majority of domains, with lower scores in the primary analysis domain.<br><br>This difference in the analysis domain that is primary could be due to the fact that the majority of pragmatic trials analyse their data in an intention to treat method while some explanation trials do not. The overall score was lower for pragmatic systematic reviews when the domains of organisation, flexible delivery and follow-up were combined.<br><br>It is important to remember that a pragmatic study does not mean that a trial is of poor quality. In fact, there are increasing numbers of clinical trials that use the term 'pragmatic' either in their abstracts or titles (as defined by MEDLINE, but that is not precise nor sensitive). The use of these words in abstracts and titles may suggest a greater awareness of the importance of pragmatism but it isn't clear if this is reflected in the contents of the articles.<br><br>Conclusions<br><br>As appreciation for the value of real-world evidence grows commonplace, pragmatic trials have gained popularity in research. They are randomized studies that compare real-world care alternatives to clinical trials in development. They include patient populations more closely resembling those treated in regular care. This approach has the potential to overcome the limitations of observational studies which include the limitations of relying on volunteers and limited availability and coding variability in national registries.<br><br>Pragmatic trials offer other advantages, including the ability to leverage existing data sources, and a greater probability of detecting meaningful differences from traditional trials. However, these tests could be prone to limitations that undermine their validity and generalizability. For example the rates of participation in some trials might be lower than expected due to the healthy-volunteer influence and incentives to pay or compete for participants from other research studies (e.g. industry trials). Practical trials are often restricted by the need to recruit participants quickly. Additionally certain pragmatic trials do not have controls to ensure that the observed differences are not due to biases in trial conduct.<br><br>The authors of the Pragmatic Free Trial Meta identified RCTs published from 2022 to 2022 that self-described as pragmatic. They assessed pragmatism by using the PRECIS-2 tool that includes the eligibility criteria for domains and recruitment criteria, as well as flexibility in adherence to interventions, and follow-up. They discovered that 14 of the trials scored highly or pragmatic sensible (i.e. scoring 5 or more) in one or more of these domains and that the majority were single-center.<br><br>Trials with high pragmatism scores are likely to have broader criteria for eligibility than conventional RCTs. They also contain populations from various hospitals. The authors claim that these traits can make pragmatic trials more meaningful and relevant to everyday practice, but they do not guarantee that a trial using a pragmatic approach is free from bias. Furthermore, the pragmatism of trials is not a definite characteristic A pragmatic trial that does not have all the characteristics of a explanatory trial can yield reliable and relevant results.
Pragmatic Free Trial Meta<br><br>Pragmatic Free Trial Meta is a free and non-commercial open data platform and infrastructure that supports research on pragmatic trials. It collects and distributes cleaned trial data, [https://bookmarkusers.com/story18148945/this-is-the-pragmatic-site-case-study-you-ll-never-forget 프라그마틱 사이트] 슬롯, [https://myfirstbookmark.com/story18338578/15-reasons-you-must-love-pragmatic-image mouse click the up coming internet site], ratings and evaluations using PRECIS-2. This allows for diverse meta-epidemiological analyses that compare treatment effect estimates across trials of different levels of pragmatism.<br><br>Background<br><br>Pragmatic studies provide real-world evidence that can be used to make clinical decisions. However, the use of the term "pragmatic" is not consistent and its definition and assessment requires further clarification. Pragmatic trials must be designed to guide clinical practice and policy decisions, rather than confirm a physiological or clinical hypothesis. A pragmatic trial should aim to be as close as is possible to the real-world clinical practice which include the recruitment of participants, setting, designing, delivery and execution of interventions, determining and analysis results, as well as primary analysis. This is a significant difference between explanation-based trials, as defined by Schwartz and Lellouch1 which are designed to confirm a hypothesis in a more thorough way.<br><br>Trials that are truly practical should not attempt to blind participants or the clinicians, as this may lead to bias in estimates of treatment effects. The trials that are pragmatic should also try to enroll patients from a wide range of health care settings, so that their results can be applied to the real world.<br><br>Finally the focus of pragmatic trials should be on outcomes that are important to patients, such as quality of life or functional recovery. This is particularly relevant when trials involve surgical procedures that are invasive or may have harmful adverse consequences. The CRASH trial29, for instance was focused on functional outcomes to compare a two-page report with an electronic system for the monitoring of hospitalized patients with chronic heart failure. In addition, the catheter trial28 focused on urinary tract infections that are symptomatic of catheters as its primary outcome.<br><br>In addition to these characteristics, pragmatic trials should minimize the trial procedures and data collection requirements in order to reduce costs. Additionally, pragmatic trials should aim to make their results as applicable to current clinical practices as they can. This can be achieved by ensuring that their analysis is based on the intention to treat method (as described within CONSORT extensions).<br><br>Many RCTs that do not meet the criteria for pragmatism but contain features contrary to pragmatism, have been published in journals of different types and incorrectly labeled pragmatic. This can lead to false claims of pragmatism, and the usage of the term should be standardized. The creation of the PRECIS-2 tool, which offers an objective and standard assessment of pragmatic features, is a good first step.<br><br>Methods<br><br>In a practical trial the goal is to inform policy or clinical decisions by demonstrating how the intervention can be implemented into routine care. Explanatory trials test hypotheses about the causal-effect relationship in idealized settings. In this way, pragmatic trials may have a lower internal validity than studies that explain and be more susceptible to biases in their design, analysis, and conduct. Despite these limitations, pragmatic trials can be a valuable source of information for decision-making in the context of healthcare.<br><br>The PRECIS-2 tool scores an RCT on 9 domains, ranging between 1 and 5 (very pragmatist). In this study, the domains of recruitment, organisation, flexibility in delivery, flexibility in adherence, and follow-up scored high. However, the main outcome and the method of missing data was scored below the pragmatic limit. This suggests that a trial could be designed with effective practical features, but without harming the quality of the trial.<br><br>However, it's difficult to judge how practical a particular trial is, since the pragmatism score is not a binary quality; certain aspects of a trial may be more pragmatic than others. Furthermore, logistical or protocol modifications made during a trial can change its score on pragmatism. Additionally 36% of 89 pragmatic trials discovered by Koppenaal and colleagues were placebo-controlled or conducted prior to approval and a majority of them were single-center. They are not in line with the usual practice and are only called pragmatic if their sponsors agree that the trials aren't blinded.<br><br>Another common aspect of pragmatic trials is that the researchers attempt to make their findings more meaningful by analysing subgroups of the sample. However, [https://bookmarkpressure.com/story18246026/a-an-instructional-guide-to-pragmatic-demo-from-beginning-to-end 프라그마틱 슬롯체험] this often leads to unbalanced comparisons and lower statistical power, increasing the likelihood of missing or misinterpreting the results of the primary outcome. This was the case in the meta-analysis of pragmatic trials due to the fact that secondary outcomes were not corrected for differences in covariates at the baseline.<br><br>Additionally, studies that are pragmatic can pose difficulties in the collection and interpretation of safety data. This is due to the fact that adverse events are typically reported by participants themselves and prone to reporting errors, delays or coding deviations. It is essential to increase the accuracy and quality of outcomes in these trials.<br><br>Results<br><br>While the definition of pragmatism does not mean that trials must be 100% pragmatic, there are some advantages to incorporating pragmatic components into clinical trials. These include:<br><br>Enhancing sensitivity to issues in the real world as well as reducing the size of studies and their costs and allowing the study results to be more quickly translated into actual clinical practice (by including patients from routine care). However, pragmatic trials have their disadvantages. The right amount of heterogeneity for instance could allow a study to expand its findings to different patients or settings. However the wrong type of heterogeneity could reduce the sensitivity of an assay and thus lessen the power of a trial to detect small treatment effects.<br><br>Many studies have attempted classify pragmatic trials using a variety of definitions and scoring methods. Schwartz and Lellouch1 created an approach to distinguish between explanatory trials that confirm the clinical or physiological hypothesis as well as pragmatic trials that aid in the selection of appropriate treatments in the real-world clinical setting. The framework consisted of nine domains scored on a 1-5 scale which indicated that 1 was more explanatory while 5 was more pragmatic. The domains included recruitment and setting up, the delivery of intervention, flexible adherence and primary analysis.<br><br>The initial PRECIS tool3 had similar domains and an assessment scale ranging from 1 to 5. Koppenaal and colleagues10 developed an adaptation to this assessment dubbed the Pragmascope that was simpler to use in systematic reviews. They found that pragmatic systematic reviews had a higher average score in most domains but lower scores in the primary analysis domain.<br><br>This distinction in the main analysis domain could be explained by the fact that the majority of pragmatic trials analyse their data in the intention to treat way, whereas some explanatory trials do not. The overall score was lower for pragmatic systematic reviews when the domains of organisation, flexible delivery and follow-up were combined.<br><br>It is important to remember that a pragmatic study does not necessarily mean a low-quality study. In fact, there is an increasing number of clinical trials that use the term "pragmatic" either in their title or abstract (as defined by MEDLINE but which is neither sensitive nor precise). The use of these terms in abstracts and titles could suggest a greater awareness of the importance of pragmatism but it is unclear whether this is manifested in the content of the articles.<br><br>Conclusions<br><br>As the importance of real-world evidence becomes increasingly widespread the pragmatic trial has gained popularity in research. They are randomized trials that compare real world alternatives to new treatments that are being developed. They involve patient populations closer to those treated in regular care. This method is able to overcome the limitations of observational research, for example, the biases that are associated with the reliance on volunteers, as well as the insufficient availability and the coding differences in national registry.<br><br>Pragmatic trials have other advantages, including the ability to use existing data sources and a higher chance of detecting significant differences from traditional trials. However, pragmatic tests may still have limitations which undermine their validity and generalizability. For example, participation rates in some trials may be lower than expected due to the healthy-volunteer effect as well as incentives to pay or compete for  [https://bookmark-share.com/story18348730/25-shocking-facts-about-pragmatic-casino 프라그마틱 슬롯 추천] participants from other research studies (e.g., industry trials). The necessity to recruit people in a timely fashion also limits the sample size and impact of many pragmatic trials. Some pragmatic trials also lack controls to ensure that any observed differences aren't due to biases in the trial.<br><br>The authors of the Pragmatic Free Trial Meta identified RCTs published up to 2022 that self-described themselves as pragmatic. The PRECIS-2 tool was employed to evaluate the pragmatism of these trials. It includes areas like eligibility criteria and flexibility in recruitment and adherence to intervention and follow-up. They discovered that 14 of these trials scored highly or pragmatic pragmatic (i.e. scoring 5 or higher) in one or more of these domains, and that the majority of them were single-center.<br><br>Trials with a high pragmatism score tend to have broader eligibility criteria than traditional RCTs which have very specific criteria that aren't likely to be present in the clinical setting, and include populations from a wide range of hospitals. The authors argue that these traits can make pragmatic trials more meaningful and relevant to daily practice, but they do not necessarily guarantee that a trial using a pragmatic approach is free from bias. The pragmatism characteristic is not a definite characteristic; a pragmatic test that doesn't have all the characteristics of an explanation study may still yield valuable and valid results.

Latest revision as of 08:14, 27 December 2024

Pragmatic Free Trial Meta

Pragmatic Free Trial Meta is a free and non-commercial open data platform and infrastructure that supports research on pragmatic trials. It collects and distributes cleaned trial data, 프라그마틱 사이트 슬롯, mouse click the up coming internet site, ratings and evaluations using PRECIS-2. This allows for diverse meta-epidemiological analyses that compare treatment effect estimates across trials of different levels of pragmatism.

Background

Pragmatic studies provide real-world evidence that can be used to make clinical decisions. However, the use of the term "pragmatic" is not consistent and its definition and assessment requires further clarification. Pragmatic trials must be designed to guide clinical practice and policy decisions, rather than confirm a physiological or clinical hypothesis. A pragmatic trial should aim to be as close as is possible to the real-world clinical practice which include the recruitment of participants, setting, designing, delivery and execution of interventions, determining and analysis results, as well as primary analysis. This is a significant difference between explanation-based trials, as defined by Schwartz and Lellouch1 which are designed to confirm a hypothesis in a more thorough way.

Trials that are truly practical should not attempt to blind participants or the clinicians, as this may lead to bias in estimates of treatment effects. The trials that are pragmatic should also try to enroll patients from a wide range of health care settings, so that their results can be applied to the real world.

Finally the focus of pragmatic trials should be on outcomes that are important to patients, such as quality of life or functional recovery. This is particularly relevant when trials involve surgical procedures that are invasive or may have harmful adverse consequences. The CRASH trial29, for instance was focused on functional outcomes to compare a two-page report with an electronic system for the monitoring of hospitalized patients with chronic heart failure. In addition, the catheter trial28 focused on urinary tract infections that are symptomatic of catheters as its primary outcome.

In addition to these characteristics, pragmatic trials should minimize the trial procedures and data collection requirements in order to reduce costs. Additionally, pragmatic trials should aim to make their results as applicable to current clinical practices as they can. This can be achieved by ensuring that their analysis is based on the intention to treat method (as described within CONSORT extensions).

Many RCTs that do not meet the criteria for pragmatism but contain features contrary to pragmatism, have been published in journals of different types and incorrectly labeled pragmatic. This can lead to false claims of pragmatism, and the usage of the term should be standardized. The creation of the PRECIS-2 tool, which offers an objective and standard assessment of pragmatic features, is a good first step.

Methods

In a practical trial the goal is to inform policy or clinical decisions by demonstrating how the intervention can be implemented into routine care. Explanatory trials test hypotheses about the causal-effect relationship in idealized settings. In this way, pragmatic trials may have a lower internal validity than studies that explain and be more susceptible to biases in their design, analysis, and conduct. Despite these limitations, pragmatic trials can be a valuable source of information for decision-making in the context of healthcare.

The PRECIS-2 tool scores an RCT on 9 domains, ranging between 1 and 5 (very pragmatist). In this study, the domains of recruitment, organisation, flexibility in delivery, flexibility in adherence, and follow-up scored high. However, the main outcome and the method of missing data was scored below the pragmatic limit. This suggests that a trial could be designed with effective practical features, but without harming the quality of the trial.

However, it's difficult to judge how practical a particular trial is, since the pragmatism score is not a binary quality; certain aspects of a trial may be more pragmatic than others. Furthermore, logistical or protocol modifications made during a trial can change its score on pragmatism. Additionally 36% of 89 pragmatic trials discovered by Koppenaal and colleagues were placebo-controlled or conducted prior to approval and a majority of them were single-center. They are not in line with the usual practice and are only called pragmatic if their sponsors agree that the trials aren't blinded.

Another common aspect of pragmatic trials is that the researchers attempt to make their findings more meaningful by analysing subgroups of the sample. However, 프라그마틱 슬롯체험 this often leads to unbalanced comparisons and lower statistical power, increasing the likelihood of missing or misinterpreting the results of the primary outcome. This was the case in the meta-analysis of pragmatic trials due to the fact that secondary outcomes were not corrected for differences in covariates at the baseline.

Additionally, studies that are pragmatic can pose difficulties in the collection and interpretation of safety data. This is due to the fact that adverse events are typically reported by participants themselves and prone to reporting errors, delays or coding deviations. It is essential to increase the accuracy and quality of outcomes in these trials.

Results

While the definition of pragmatism does not mean that trials must be 100% pragmatic, there are some advantages to incorporating pragmatic components into clinical trials. These include:

Enhancing sensitivity to issues in the real world as well as reducing the size of studies and their costs and allowing the study results to be more quickly translated into actual clinical practice (by including patients from routine care). However, pragmatic trials have their disadvantages. The right amount of heterogeneity for instance could allow a study to expand its findings to different patients or settings. However the wrong type of heterogeneity could reduce the sensitivity of an assay and thus lessen the power of a trial to detect small treatment effects.

Many studies have attempted classify pragmatic trials using a variety of definitions and scoring methods. Schwartz and Lellouch1 created an approach to distinguish between explanatory trials that confirm the clinical or physiological hypothesis as well as pragmatic trials that aid in the selection of appropriate treatments in the real-world clinical setting. The framework consisted of nine domains scored on a 1-5 scale which indicated that 1 was more explanatory while 5 was more pragmatic. The domains included recruitment and setting up, the delivery of intervention, flexible adherence and primary analysis.

The initial PRECIS tool3 had similar domains and an assessment scale ranging from 1 to 5. Koppenaal and colleagues10 developed an adaptation to this assessment dubbed the Pragmascope that was simpler to use in systematic reviews. They found that pragmatic systematic reviews had a higher average score in most domains but lower scores in the primary analysis domain.

This distinction in the main analysis domain could be explained by the fact that the majority of pragmatic trials analyse their data in the intention to treat way, whereas some explanatory trials do not. The overall score was lower for pragmatic systematic reviews when the domains of organisation, flexible delivery and follow-up were combined.

It is important to remember that a pragmatic study does not necessarily mean a low-quality study. In fact, there is an increasing number of clinical trials that use the term "pragmatic" either in their title or abstract (as defined by MEDLINE but which is neither sensitive nor precise). The use of these terms in abstracts and titles could suggest a greater awareness of the importance of pragmatism but it is unclear whether this is manifested in the content of the articles.

Conclusions

As the importance of real-world evidence becomes increasingly widespread the pragmatic trial has gained popularity in research. They are randomized trials that compare real world alternatives to new treatments that are being developed. They involve patient populations closer to those treated in regular care. This method is able to overcome the limitations of observational research, for example, the biases that are associated with the reliance on volunteers, as well as the insufficient availability and the coding differences in national registry.

Pragmatic trials have other advantages, including the ability to use existing data sources and a higher chance of detecting significant differences from traditional trials. However, pragmatic tests may still have limitations which undermine their validity and generalizability. For example, participation rates in some trials may be lower than expected due to the healthy-volunteer effect as well as incentives to pay or compete for 프라그마틱 슬롯 추천 participants from other research studies (e.g., industry trials). The necessity to recruit people in a timely fashion also limits the sample size and impact of many pragmatic trials. Some pragmatic trials also lack controls to ensure that any observed differences aren't due to biases in the trial.

The authors of the Pragmatic Free Trial Meta identified RCTs published up to 2022 that self-described themselves as pragmatic. The PRECIS-2 tool was employed to evaluate the pragmatism of these trials. It includes areas like eligibility criteria and flexibility in recruitment and adherence to intervention and follow-up. They discovered that 14 of these trials scored highly or pragmatic pragmatic (i.e. scoring 5 or higher) in one or more of these domains, and that the majority of them were single-center.

Trials with a high pragmatism score tend to have broader eligibility criteria than traditional RCTs which have very specific criteria that aren't likely to be present in the clinical setting, and include populations from a wide range of hospitals. The authors argue that these traits can make pragmatic trials more meaningful and relevant to daily practice, but they do not necessarily guarantee that a trial using a pragmatic approach is free from bias. The pragmatism characteristic is not a definite characteristic; a pragmatic test that doesn't have all the characteristics of an explanation study may still yield valuable and valid results.