Difference between revisions of "10 Unexpected Pragmatic Free Trial Meta Tips"

From
Jump to: navigation, search
m
m
 
(3 intermediate revisions by 3 users not shown)
Line 1: Line 1:
Pragmatic Free Trial Meta<br><br>Pragmatic Free Trail Meta is an open data platform that enables research into 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 not used in a consistent manner and [https://icelisting.com/story19160673/pragmatic-sugar-rush-s-history-history-of-pragmatic-sugar-rush 프라그마틱 무료 슬롯버프] its definition and evaluation require further clarification. Pragmatic trials are intended to guide clinical practices and policy choices, rather than prove a physiological or clinical hypothesis. A pragmatic trial should aim to be as similar to real-world clinical practice as possible, such as the recruitment of participants, setting up and design, the delivery and implementation of the intervention, determination and analysis of outcomes and primary analysis. This is a major distinction between explanatory trials as defined by Schwartz and Lellouch1 that are designed to confirm the hypothesis in a more thorough manner.<br><br>The trials that are truly pragmatic should avoid attempting to blind participants or the clinicians in order to cause bias in estimates of the effect of treatment. Practical trials also involve patients from different healthcare settings to ensure that the results can be generalized to the real world.<br><br>Furthermore the focus of pragmatic trials should be on outcomes that are vital to patients, such as quality of life or functional recovery. This is particularly important when trials involve surgical procedures that are invasive or may have dangerous adverse effects. The CRASH trial29 compared a 2-page report with an electronic monitoring system for hospitalized patients with chronic cardiac failure. The trial with a catheter, however, used symptomatic catheter associated urinary tract infection as its primary outcome.<br><br>In addition to these aspects pragmatic trials should also reduce trial procedures and data-collection requirements to cut costs and time commitments. Additionally these trials should strive to make their findings as relevant to actual clinical practice as is possible. This can be accomplished by ensuring that their analysis is based on the intention-to treat approach (as described within CONSORT extensions).<br><br>Despite these guidelines however, a large number of RCTs with features that defy pragmatism have been incorrectly self-labeled pragmatic and published in journals of all kinds. This can lead to misleading claims of pragmatism and the term's use should be made more uniform. The development of the PRECIS-2 tool, which offers an objective standard for assessing pragmatic features is a good initial step.<br><br>Methods<br><br>In a pragmatic study, [https://yourbookmarklist.com/ 프라그마틱 슬롯 사이트] the goal is to inform clinical or policy decisions by showing how an intervention could be integrated into routine care in real-world situations. Explanatory trials test hypotheses concerning the causal-effect relationship in idealized settings. In this way, pragmatic trials can have less internal validity than studies that explain and be more prone to biases in their design as well as analysis and conduct. Despite their limitations, pragmatic studies can provide valuable information to make decisions in the context of healthcare.<br><br>The PRECIS-2 tool measures the degree of pragmatism in an RCT by assessing it across 9 domains ranging from 1 (very explicative) to 5 (very pragmatic). In this study, the areas of recruitment, organisation and flexibility in delivery, flexible adherence, and follow-up received high scores. However, the primary outcome and the method of missing data scored below the pragmatic limit. This suggests that it is possible to design a trial with high-quality pragmatic features, without damaging the quality of its outcomes.<br><br>It is, however, difficult to judge how pragmatic a particular trial is, since the pragmatism score is not a binary quality; certain aspects of a study can be more pragmatic than others. Additionally, logistical or protocol modifications made during the trial may alter its score in pragmatism. Additionally, 36% of the 89 pragmatic trials discovered by Koppenaal et al were placebo-controlled or conducted prior to licensing, and the majority were single-center. This means that they are not as common and can only be described as pragmatic in the event that their sponsors are supportive of the lack of blinding in such trials.<br><br>A common feature of pragmatic research is that researchers attempt to make their findings more relevant by studying subgroups of the trial sample. This can lead to unbalanced analyses that have lower statistical power. This increases the risk of missing or misdetecting differences in the primary outcomes. In the case of the pragmatic trials included in this meta-analysis, this was a major issue since the secondary outcomes were not adjusted for variations in baseline covariates.<br><br>Furthermore, pragmatic studies may pose challenges to gathering and interpretation of safety data. It is because adverse events tend to be self-reported, and are prone to errors, delays or coding differences. It is important to improve the accuracy and quality of the outcomes in these trials.<br><br>Results<br><br>Although the definition of pragmatism may not mean that trials must be 100 percent pragmatic, there are some advantages to incorporating pragmatic components into clinical trials. These include:<br><br>By incorporating routine patients, the trial results can be more quickly translated into clinical practice. However, pragmatic trials have their disadvantages. The right amount of heterogeneity, for  무료[https://health-lists.com/story18667842/three-reasons-why-you-re-pragmatic-kr-is-broken-and-how-to-repair-it 슬롯] [https://brightbookmarks.com/story18280761/your-worst-nightmare-concerning-pragmatic-sugar-rush-relived 프라그마틱 슬롯 하는법] - [https://social-medialink.com social-Medialink.com] - example could allow a study to extend its findings to different patients or settings. However the wrong type of heterogeneity could reduce the sensitivity of an assay and, consequently, decrease the ability of a study to detect even minor effects of treatment.<br><br>A variety of studies have attempted to classify pragmatic trials using different definitions and scoring methods. Schwartz and Lellouch1 created a framework to distinguish between explanatory studies that confirm a physiological hypothesis or clinical hypothesis, and pragmatic studies that help inform the choice for appropriate therapies in clinical practice. The framework consisted of nine domains that were scored on a 1-5 scale with 1 being more explanatory while 5 was more pragmatic. The domains included recruitment and setting up, the delivery of intervention, flex adherence and primary analysis.<br><br>The initial PRECIS tool3 featured similar domains and a scale of 1 to 5. Koppenaal et al10 developed an adaptation of the assessment, called the Pragmascope which was more user-friendly to use for  프라그마틱 정품확인방법 ([https://mnobookmarks.com/ mnobookmarks.com]) 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>The difference in the main analysis domain could be due to the fact that most pragmatic trials process their data in an intention to treat manner 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 merged.<br><br>It is important to remember that a study that is pragmatic does not necessarily mean a low-quality study. In fact, there are increasing numbers of clinical trials that use the term 'pragmatic' either in their abstracts or titles (as defined by MEDLINE however it is neither precise nor sensitive). The use of these terms in abstracts and titles could suggest a greater awareness of the importance of pragmatism however, it is not clear if this is reflected in the content of the articles.<br><br>Conclusions<br><br>As the value of evidence from the real world becomes more popular the pragmatic trial has gained momentum in research. They are randomized clinical trials which compare real-world treatment options instead of experimental treatments under development. They include patients which are more closely resembling the patients who receive routine care, they employ comparators that are used in routine practice (e.g., existing drugs) and depend on the self-reporting of participants about outcomes. This method can help overcome the limitations of observational research, such as the biases associated with the reliance on volunteers, and the limited availability and codes that vary in national registers.<br><br>Pragmatic trials also have advantages, including the ability to draw on existing data sources and a greater likelihood of detecting meaningful differences from traditional trials. However, pragmatic trials may have some limitations that limit their credibility and generalizability. Participation rates in some trials could be lower than anticipated due to the healthy-volunteering effect, financial incentives, or competition from other research studies. The need to recruit individuals in a timely manner also limits the sample size and the impact of many pragmatic trials. Some pragmatic trials also lack controls to ensure that observed differences aren't caused by biases during the trial.<br><br>The authors of the Pragmatic Free Trial Meta identified 48 RCTs that self-labeled themselves as pragmatic and that were published up to 2022. They assessed pragmatism using the PRECIS-2 tool, which includes the domains eligibility criteria and recruitment criteria, as well as flexibility in adherence to intervention, and follow-up. They discovered that 14 trials scored highly pragmatic or pragmatic (i.e. scoring 5 or more) in at least one of these domains.<br><br>Trials that have a high pragmatism score tend to have more expansive eligibility criteria than traditional RCTs, which include very specific criteria that aren't likely to be used in the clinical environment, and they comprise patients from a wide range of hospitals. The authors argue that these traits can make the pragmatic trials more relevant and useful for everyday clinical practice, however they do not guarantee that a trial conducted in a pragmatic manner is free from bias. Moreover, the pragmatism of a trial is not a fixed attribute A pragmatic trial that does not have all the characteristics of a explanatory trial may yield valuable and reliable results.
+
Pragmatic Free Trial Meta<br><br>Pragmatic Free Trial Meta is a non-commercial, open data platform and infrastructure that supports research on pragmatic trials. It collects and distributes clean trial data, ratings, and evaluations using PRECIS-2. This permits a variety of meta-epidemiological analyses to evaluate the effects of treatment across trials of different levels of pragmatism.<br><br>Background<br><br>Pragmatic trials provide real-world evidence that can be used to make clinical decisions. However, the usage of the term "pragmatic" is not uniform and its definition and  라이브 카지노 ([http://8.134.38.106:3000/pragmaticplay3686 Click on 8.134.38.106]) evaluation requires clarification. The purpose of pragmatic trials is to guide clinical practice and policy decisions, rather than confirm an hypothesis that is based on a clinical or physiological basis. A pragmatic trial should aim to be as close as possible to the real-world clinical practice that include recruitment of participants, setting, designing, implementation and delivery of interventions, determination and [http://109.195.52.92:3000/pragmaticplay0145 프라그마틱 체험] analysis outcomes, and primary analyses. This is a significant distinction from explanatory trials (as described by Schwartz and Lellouch1), which are intended to provide a more complete confirmation of the hypothesis.<br><br>Truely pragmatic trials should not conceal participants or clinicians. This can lead to a bias in the estimates of treatment effects. Practical trials also involve patients from different healthcare settings to ensure that their outcomes can be compared to the real world.<br><br>Finally the focus of pragmatic trials should be on outcomes that are important to patients, like quality of life or functional recovery. This is particularly important in trials that require surgical procedures that are invasive or may have serious adverse effects. The CRASH trial29 compared a 2-page report with an electronic monitoring system for patients in hospitals with chronic heart failure. The catheter trial28 on the other hand utilized symptomatic catheter-related urinary tract infections as its primary outcome.<br><br>In addition to these aspects pragmatic trials should also reduce trial procedures and data-collection requirements to cut costs and time commitments. Finally pragmatic trials should try to make their findings as applicable to clinical practice as possible by making sure that their primary method of analysis follows the intention-to treat approach (as described in CONSORT extensions for pragmatic trials).<br><br>Many RCTs that do not meet the criteria for pragmatism however, they have characteristics that are contrary to pragmatism, have been published in journals of different types and incorrectly labeled pragmatic. This can result in misleading claims of pragmaticity and the usage of the term needs to be standardized. The development of a PRECIS-2 tool that offers an objective and standardized assessment of pragmatic features is the first step.<br><br>Methods<br><br>In a pragmatic research study, the goal is to inform policy or clinical decisions by demonstrating how an intervention can be integrated into routine treatment in real-world contexts. This is different from explanatory trials that test hypotheses about the causal-effect relationship in idealized situations. Therefore, pragmatic trials could 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 provide valuable information to make decisions in the healthcare context.<br><br>The PRECIS-2 tool scores an RCT on 9 domains, ranging from 1 to 5 (very pragmatist). In this study, the recruit-ment organisation, flexibility: delivery and follow-up domains were awarded high scores, but the primary outcome and the method for missing data fell below the limit of practicality. This indicates that a trial can be designed with good practical features, yet not damaging the quality.<br><br>However, it's difficult to judge how practical a particular trial is since pragmaticity is not a definite attribute; some aspects of a trial can be more pragmatic than others. A trial's pragmatism could be affected by changes to the protocol or the logistics during the trial. Additionally 36% of 89 pragmatic trials identified by Koppenaal and colleagues were placebo-controlled, or conducted prior to licensing and most were single-center. They aren't in line with the standard practice and  프라그마틱 무료체험 메타 ([http://47.100.81.115/pragmaticplay3520/jonna2002/wiki/5-Killer-Quora-Answers-To-Pragmatic-Kr 47.100.81.115]) are only considered pragmatic if their sponsors agree that such trials aren't blinded.<br><br>Furthermore, a common feature of pragmatic trials is that researchers try to make their results more meaningful by analysing subgroups of the trial. This can lead to unbalanced results and lower statistical power, which increases the likelihood of missing or misinterpreting the results of the primary outcome. In the instance of the pragmatic trials included in this meta-analysis, this was a major issue because the secondary outcomes weren't adjusted for variations in baseline covariates.<br><br>Additionally practical trials can have challenges with respect to the collection and interpretation of safety data. This is due to the fact that adverse events are usually self-reported and are susceptible to reporting delays, inaccuracies or coding deviations. It is therefore important to enhance the quality of outcomes ascertainment in these trials, in particular by using national registries instead of relying on participants to report adverse events in the trial's own database.<br><br>Results<br><br>While the definition of pragmatism may not mean that trials must be 100 percent pragmatic, there are benefits to including pragmatic components in clinical trials. These include:<br><br>Enhancing sensitivity to issues in the real world which reduces cost and size of the study as well as allowing trial results to be more quickly implemented into clinical practice (by including patients from routine care). However, pragmatic trials have disadvantages. For example, the right kind of heterogeneity can allow the trial to apply its results to many different patients and settings; however the wrong kind of heterogeneity could reduce assay sensitiveness and consequently reduce the power of a study to detect even minor effects of treatment.<br><br>A number of studies have attempted to classify pragmatic trials using various definitions and scoring systems. Schwartz and Lellouch1 developed a framework to distinguish between research studies that prove a clinical or physiological hypothesis as well as pragmatic trials that inform the selection of appropriate therapies in real-world clinical practice. The framework consisted of nine domains scored on a 1-5 scale, with 1 being more informative and 5 being more pragmatic. The domains included recruitment, setting up, delivery of intervention, flexible adherence and primary analysis.<br><br>The initial PRECIS tool3 featured similar domains and a scale of 1 to 5. Koppenaal and colleagues10 developed an adaptation of 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>The difference in the primary analysis domains could be explained by the way that most pragmatic trials approach data. Some explanatory trials, however don't. The overall score was lower for pragmatic systematic reviews when the domains on the organization, flexibility of delivery and follow-up were merged.<br><br>It is important to understand that a pragmatic trial doesn't necessarily mean a low quality trial, and indeed there is an increasing rate of clinical trials (as defined by MEDLINE search, however this is neither specific or sensitive) which use the word 'pragmatic' in their abstract or title. The use of these words in abstracts and titles could indicate a greater understanding of the importance of pragmatism however, it is not clear if this is manifested in the contents of the articles.<br><br>Conclusions<br><br>As the importance of real-world evidence grows widespread, pragmatic trials have gained traction in research. They are randomized trials that evaluate real-world treatment options with new treatments that are being developed. They involve patient populations that are more similar to those who receive treatment in regular medical care. This approach can help overcome the limitations of observational research, such as the biases associated with reliance on volunteers, and the limited availability and the variability of coding in national registries.<br><br>Pragmatic trials also have advantages, including the ability to leverage existing data sources and a higher chance of detecting significant differences from traditional trials. However, pragmatic trials may have some limitations that limit their credibility and generalizability. For example, participation rates in some trials may be lower than anticipated due to the healthy-volunteer influence and incentives to pay or compete for participants from other research studies (e.g.,  [http://123.60.103.97:3000/pragmaticplay4581 프라그마틱 정품확인방법] industry trials). The need to recruit individuals quickly restricts the sample size and the impact of many practical trials. Additionally, some pragmatic trials don't have controls to ensure that the observed differences aren't due to biases in the conduct of trials.<br><br>The authors of the Pragmatic Free Trial Meta identified RCTs that were published between 2022 and 2022 that self-described as pragmatic. They assessed pragmatism by using the PRECIS-2 tool that includes the domains eligibility criteria, recruitment, flexibility in adherence to intervention 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 of them were single-center.<br><br>Studies with high pragmatism scores are likely to have more lenient criteria for eligibility than traditional RCTs. They also have patients from a variety of hospitals. The authors argue that these characteristics could make the pragmatic trials more relevant and relevant to everyday practice, but they do not necessarily guarantee that a trial using a pragmatic approach is completely free of bias. The pragmatism principle is not a fixed attribute the test that does not have all the characteristics of an explicative study may still yield valuable and valid results.

Latest revision as of 13:38, 26 December 2024

Pragmatic Free Trial Meta

Pragmatic Free Trial Meta is a non-commercial, open data platform and infrastructure that supports research on pragmatic trials. It collects and distributes clean trial data, ratings, and evaluations using PRECIS-2. This permits a variety of meta-epidemiological analyses to evaluate the effects of treatment across trials of different levels of pragmatism.

Background

Pragmatic trials provide real-world evidence that can be used to make clinical decisions. However, the usage of the term "pragmatic" is not uniform and its definition and 라이브 카지노 (Click on 8.134.38.106) evaluation requires clarification. The purpose of pragmatic trials is to guide clinical practice and policy decisions, rather than confirm an hypothesis that is based on a clinical or physiological basis. A pragmatic trial should aim to be as close as possible to the real-world clinical practice that include recruitment of participants, setting, designing, implementation and delivery of interventions, determination and 프라그마틱 체험 analysis outcomes, and primary analyses. This is a significant distinction from explanatory trials (as described by Schwartz and Lellouch1), which are intended to provide a more complete confirmation of the hypothesis.

Truely pragmatic trials should not conceal participants or clinicians. This can lead to a bias in the estimates of treatment effects. Practical trials also involve patients from different healthcare settings to ensure that their outcomes can be compared to the real world.

Finally the focus of pragmatic trials should be on outcomes that are important to patients, like quality of life or functional recovery. This is particularly important in trials that require surgical procedures that are invasive or may have serious adverse effects. The CRASH trial29 compared a 2-page report with an electronic monitoring system for patients in hospitals with chronic heart failure. The catheter trial28 on the other hand utilized symptomatic catheter-related urinary tract infections as its primary outcome.

In addition to these aspects pragmatic trials should also reduce trial procedures and data-collection requirements to cut costs and time commitments. Finally pragmatic trials should try to make their findings as applicable to clinical practice as possible by making sure that their primary method of analysis follows the intention-to treat approach (as described in CONSORT extensions for pragmatic trials).

Many RCTs that do not meet the criteria for pragmatism however, they have characteristics that are contrary to pragmatism, have been published in journals of different types and incorrectly labeled pragmatic. This can result in misleading claims of pragmaticity and the usage of the term needs to be standardized. The development of a PRECIS-2 tool that offers an objective and standardized assessment of pragmatic features is the first step.

Methods

In a pragmatic research study, the goal is to inform policy or clinical decisions by demonstrating how an intervention can be integrated into routine treatment in real-world contexts. This is different from explanatory trials that test hypotheses about the causal-effect relationship in idealized situations. Therefore, pragmatic trials could 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 provide valuable information to make decisions in the healthcare context.

The PRECIS-2 tool scores an RCT on 9 domains, ranging from 1 to 5 (very pragmatist). In this study, the recruit-ment organisation, flexibility: delivery and follow-up domains were awarded high scores, but the primary outcome and the method for missing data fell below the limit of practicality. This indicates that a trial can be designed with good practical features, yet not damaging the quality.

However, it's difficult to judge how practical a particular trial is since pragmaticity is not a definite attribute; some aspects of a trial can be more pragmatic than others. A trial's pragmatism could be affected by changes to the protocol or the logistics during the trial. Additionally 36% of 89 pragmatic trials identified by Koppenaal and colleagues were placebo-controlled, or conducted prior to licensing and most were single-center. They aren't in line with the standard practice and 프라그마틱 무료체험 메타 (47.100.81.115) are only considered pragmatic if their sponsors agree that such trials aren't blinded.

Furthermore, a common feature of pragmatic trials is that researchers try to make their results more meaningful by analysing subgroups of the trial. This can lead to unbalanced results and lower statistical power, which increases the likelihood of missing or misinterpreting the results of the primary outcome. In the instance of the pragmatic trials included in this meta-analysis, this was a major issue because the secondary outcomes weren't adjusted for variations in baseline covariates.

Additionally practical trials can have challenges with respect to the collection and interpretation of safety data. This is due to the fact that adverse events are usually self-reported and are susceptible to reporting delays, inaccuracies or coding deviations. It is therefore important to enhance the quality of outcomes ascertainment in these trials, in particular by using national registries instead of relying on participants to report adverse events in the trial's own database.

Results

While the definition of pragmatism may not mean that trials must be 100 percent pragmatic, there are benefits to including pragmatic components in clinical trials. These include:

Enhancing sensitivity to issues in the real world which reduces cost and size of the study as well as allowing trial results to be more quickly implemented into clinical practice (by including patients from routine care). However, pragmatic trials have disadvantages. For example, the right kind of heterogeneity can allow the trial to apply its results to many different patients and settings; however the wrong kind of heterogeneity could reduce assay sensitiveness and consequently reduce the power of a study to detect even minor effects of treatment.

A number of studies have attempted to classify pragmatic trials using various definitions and scoring systems. Schwartz and Lellouch1 developed a framework to distinguish between research studies that prove a clinical or physiological hypothesis as well as pragmatic trials that inform the selection of appropriate therapies in real-world clinical practice. The framework consisted of nine domains scored on a 1-5 scale, with 1 being more informative and 5 being more pragmatic. The domains included recruitment, setting up, delivery of intervention, flexible adherence and primary analysis.

The initial PRECIS tool3 featured similar domains and a scale of 1 to 5. Koppenaal and colleagues10 developed an adaptation of 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.

The difference in the primary analysis domains could be explained by the way that most pragmatic trials approach data. Some explanatory trials, however don't. The overall score was lower for pragmatic systematic reviews when the domains on the organization, flexibility of delivery and follow-up were merged.

It is important to understand that a pragmatic trial doesn't necessarily mean a low quality trial, and indeed there is an increasing rate of clinical trials (as defined by MEDLINE search, however this is neither specific or sensitive) which use the word 'pragmatic' in their abstract or title. The use of these words in abstracts and titles could indicate a greater understanding of the importance of pragmatism however, it is not clear if this is manifested in the contents of the articles.

Conclusions

As the importance of real-world evidence grows widespread, pragmatic trials have gained traction in research. They are randomized trials that evaluate real-world treatment options with new treatments that are being developed. They involve patient populations that are more similar to those who receive treatment in regular medical care. This approach can help overcome the limitations of observational research, such as the biases associated with reliance on volunteers, and the limited availability and the variability of coding in national registries.

Pragmatic trials also have advantages, including the ability to leverage existing data sources and a higher chance of detecting significant differences from traditional trials. However, pragmatic trials may have some limitations that limit their credibility and generalizability. For example, participation rates in some trials may be lower than anticipated due to the healthy-volunteer influence and incentives to pay or compete for participants from other research studies (e.g., 프라그마틱 정품확인방법 industry trials). The need to recruit individuals quickly restricts the sample size and the impact of many practical trials. Additionally, some pragmatic trials don't have controls to ensure that the observed differences aren't due to biases in the conduct of trials.

The authors of the Pragmatic Free Trial Meta identified RCTs that were published between 2022 and 2022 that self-described as pragmatic. They assessed pragmatism by using the PRECIS-2 tool that includes the domains eligibility criteria, recruitment, flexibility in adherence to intervention 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 of them were single-center.

Studies with high pragmatism scores are likely to have more lenient criteria for eligibility than traditional RCTs. They also have patients from a variety of hospitals. The authors argue that these characteristics could make the pragmatic trials more relevant and relevant to everyday practice, but they do not necessarily guarantee that a trial using a pragmatic approach is completely free of bias. The pragmatism principle is not a fixed attribute the test that does not have all the characteristics of an explicative study may still yield valuable and valid results.