Reliability addresses the overall consistency of a research study's measure. This means that it is important that people test for reliability when conducting any form of research. Reliability is the ability to replicate a study and get similar results. But how do researchers know that the scores actually represent the characteristic, especially when it is a construct like intelligence, self-esteem, depression, or working memory capacity? I think you’re right, I was just concerned with making sure it was research methods related. To explain the importance of both reliability and validity I am going to write about the affect they have on the classification and diagnosis of depression. females are more likely to be depressed. This type of reliability assumes that there will be no change in th… Therefore I believe it is very important to assess each case as an individual and although past cases should be drawn upon when diagnosing, one should not assume that the current case would be the same as previous ones. Super post. Reliability refers to the ability to consistently produce a given result. Bookmarked. But on the other hand, depression does after all need defining, like anything that is going to be assessed or measured in a person. You make lots of good points about the issues with the diagnosis of depression which I found very interesting to read so that could have been your central talking point. hunt for something regarding this. , Pingback: Reliability in Research – Useful Information. Reliability refers to a test’s ability to produce consistent results over time. Validity ensures that an experiment can be generalised (external validity) and that it measures what it sets out to measure. The answer is that they conduct research using the measure to confirm that the scores make sense based on their understanding of th… I have joined your rss feed and look forward to in quest of more of your excellent post. I agree with the general importance of reliability. Reliability definition psychology refers to the ability of a research study or test to provide the same results after being performed on more than one occasion. ( Log Out / Correlation is very important in the field of Psychology and Education as a measure of relationship between test scores and other measures of performance. Who knows, it could stop you from creating an amazing break through! For example, Cyril Burt conducted a study in which he fabricated the results in order to support his theory that intelligence is genetic. A test can be split in half in several ways, e.g. Based on his studies the 11+ tests were introduced to school and had an impact on the education policy for many years. Medical records are also a problem. The results of psychological investigations are said to be reliable if they are similar each time they are carried out using the same design, procedures and measurements. Reliability and validity are both very important in psychology. a lot of it is popping it up all over the web without Reliability indicates measurement precision, reflected in producing similar measurements on multiple occasions. However, when assessing whether a study is reliable surely we should also assess whether the study is internally or externally reliable, therefore whether the methodology or the results can be repeated. Test-retest reliability is measured by administering a test twice at two different points in time. (not really sure that this is relevant to the reliability/validity side of your blog but still though it was worth mentioning!). Therefore, it is an important step to yield so that results are valid (and measure what they intend to measure). Reliability can be split into two main branches: internal and external reliability. One of the main problems with diagnosing depression in individuals is inter-rater reliability. So, I feel that reliability is an important aspect of Psychology and Science and if misused it can have serious effects on society as a whole. Reliability and validity are two important considerations that must be made with any type of data collection. They help to ensure that an experiment is credible and can be used in Psychology. Also, the reliability of this study extends worldwide and has become an accepted methodology worldwide. Change ), You are commenting using your Google account. t measures the consistency of the scoring conducted by the evaluators of the test. Pingback: saludos de cumpleaños a una amiga, That is very interesting, You’re an overly skilled blogger. Finally, it is important to remember that reliability is not validity. This replication involves repeating a research study under exactly the SAME CONDITIONS, using exactly the SAME PARTICIPANTS. Do you know any solutions to help reduce content from being stolen? What is test re-test reliability? This could mean that a man who is depressed may be misdiagnosed simply because he doesn’t really show how he feels. It is highly unlikely that both patients would be sharing the same experiences. This is a specific type of reliability which, in this case, looks at whether two people would come to the same conclusion about an individual. The ( Log Out / Change ), You are commenting using your Twitter account. Test-retest reliability is a measure of the consistency of a psychological test or assessment. Test-retest reliability can be used to … It’s important to consider reliability and validity when you are creating your research design, planning your methods, and writing up your results, especially in quantitative research. The results of each weighing may be consistent, but the scale itself may be off a few pounds. It is clear from the example of the classification and diagnosis of depression that reliability and validity are crucial in psychology. However, not all research is reliable. Reliability is important in Psychology as it helps a Psychologist find out whether the study has tested what it set out to test. If a study is reliable it can have positive implications for other areas of psychology and could be used to improve/aid issues. Kindly additionally talk over with my site =). The split-half method assesses the internal consistency of a test, such as psychometric tests and questionnaires. Test-retest reliability is best used for things that are stable over time, such as intelligence. Validity is also impiortant in Psychology because people have to know that the results were valid as well as reliable as they will have to trust the results that they are given as they may use the results to do experiments and they may go and check the results that have been done. In other words, if the findings of a test or study prove time and again to be the same, or close to the same, they are considered reliable. my authorization. When a person is labelled as depressed, they very rarely ever manage to remove the “depressed” label. Rarely do On the whole professionals dealing with patients are good at diagnosing patients well, but there are obviously some who are not as accurate in their diagnosis. I’m impressed, I have to admit. technologies after that he must be pay a visit this site and be up to date daily. Fill in your details below or click an icon to log in: You are commenting using your WordPress.com account. When we talk about employees’ work ethic, we often focus on how to be more productive and efficient with our time and rarely discuss the importance of reliability in the workplace. For example, psychodynamic theories such as the ideas of Sigmund Freud are difficult to test for reliability because they are often case studies and other forms of qualitative data. first half and second half, or by odd and even numbers. Soon after this, attention was drawn to several failures to replicate important findings in the area of social cognition. Either from a person’s responses are consistent, or the general results are consistent. However, this is still not always easy as each patient may have different experience, making it harder to give diagnoses. This shows how inter-rater reliability isn’t always present and shows that even today there are problems with this due to stereotyping, i.e. This can cause a huge problem with misdiagnosing patients. A study is considered to be reliable if it produces the same results repeatedly. In order to ensure that all patients are diagnosed correctly, all clinicans need to have a clear idea based on reliable and valid evidence. Change ). Reliability is the extent to which a measure gives consistent results. Your email address will not be published. Are Psychologists too optimistic in the ability to generalise humans? I think both types of reliability are important to psychology and it can help to improve the quality of the research if both internal and external reliability can be achieved. There are several ways of testing the reliability of psychological research. Information from patients is often unreliable due to problems with embarrassment, wanting to be likeable and so on. When you come to choose the measurement tools for your experiment, it is important to check that they are valid (i.e. I think I agree with you but I often find myself questioning whether or not reliabilty and validity would be such a big deal in psychology if the subject didnt strive so much to emulate science. But another related, equally important concept is what is referred to as the “reliability” of a test. It is hard to classify the symptoms of a mood disorder in a world of so many different cultures and beliefs. Reliability is important to make sure something can be replicated and that the findings will be the same if the experiment was done again. Required fields are marked *. Therefore, these theories lack reliability. If your scale gives you a reasonably consistent reading every time you step on it, it is reliable. I encounter a blog that’s equally educative and amusing, and They can however be misused or be inaccurate in certain cases. I understand the way you brought depression in as an example to why reliability is so important, as it is up to the discretion of the practitioner to whether the patient is ill or not, but I believe you perhaps could have used the difficulty of diagnosing depression as your main argument rather than validity and reliability. When doing research it is always important to focus on reliability and validity to ensure that your findings are valid and reliable. It is more common for a woman to be diagnosed with depression if seen by a male clinician, than if she saw a female or if a male saw either clincian. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Now i’m very happy that I stumbled across this in my Surley some aspects of psychology like depression and mentl health would favour a more individual approach to investiagtions ie: assessing cases based on and to help the individual? To assume that one persons depression is the same as another is a very risky practice. Those observing patients can often rely too much on a person’s medical history than what is right in front of them. present here at this website, thanks admin of this website. This isn’t to say that methods for the classification and diagnosis of depression are bad, because without them it would be impossible to know what to look for and how to recognise a depressed individual. This is because it tests if the study fulfills its predicted aims and hypothesis and also ensures that the results are due to the study and not any possible extraneous variables. The older I get the more I realize nobody has all the answers. Reliability is a very important piece of validity evidence. Start studying Psychology - Validity, Reliability, Standardisation and Norms. Many are victims of laziness, time pressure and subjectivity – they are after all only human. psue7b Says: October 4, 2011 at 8:53 pm. October 13, 2011. issue is something which not enough people are speaking intelligently about. what you’re speaking about! Sub-cultures like gender provide the same problem. Whenever a measurement has a potential for error, a key criterion for the soundness of that measurement is reliability. Filed under: Psychology - Research Skills and Methods — 4 Comments. Think of it this way, if you are weighing something on different scales, you would expect to get essentially the same results every time. Your email address will not be published. Reliability is the extent to which a test is repeatable and yields consistant scores.Plus, in order to be valid, a test must be reliable; but reliability does not guarantee validity. Validity is a measure of how well a test measures what it claims to measure. Be aware: The results of an investigation may be reliable, but that does not … Continue reading Reliability Ok so I did some research as to why reliability is important within the field of psychology, mainly I got loads of definitions with regards to reliability so I came up with my own ideas. This kind of reliability is used to determine the consistency of a test across time. Reliability is highly important for psychological research. Buy/Sell your Perfect money Unit & Bitcoin at 247xchanger Website: http://www.247xchanger.comWhatsapp us: 07069239529BBM: 762C119BSkype: 247xchangerICQ: 658952962Office location:Shop 4, First Floor,J&S Complex, Behind Maksoft Computer.Alegongo, Akobo-IbadanWe are online 24/7Best rate assured. ( Log Out / That way, people can test, replicate, generalise and develop your hard work. appropriately measure the construct or domain in question), and that they could also reliably replicate the result more than once in the same situation and population. If reliability is misused it can have serious negative consequences. I dig this. My website has a lot of completely unique content I’ve Inter-rater reliability measures the consistency of results obtained. No credit would be given to any data from an experiment if the validity of the results was not attempted to be reached at the best ability of the research team. Mistakes can ruin individual’s lives as problems arise with diagnoses such as labelling, hospitalising and medication. to its feature contents. 4 Tips That Will Help You Choose The Right Data Centre Provider | TechnoStuffs - The Technology Stuffs, Reliability in Research – Useful Information. Not only can the conclusions of a professional provide a problem, but the information given by a patient can also pose a risk with reliability. However, depression is a label we give to a very broad range of symptoms that can effect people in very different ways. Do you have any other ones you can put? This is done by comparing the results of one half of a test with the results from the other half. An example often used for reliability and validity is that of weighing oneself on a scale. For example, Ainsworth and Bell’s study on child attachments, ‘the strange situation’, was a reliable study because it received consistent results when re-conducted (children of certain attachments types were found to act in a way predicted of that attachment type). Create a free website or blog at WordPress.com. In the context of psychological research, this would mean that any instruments or tools used to collect data do so in consistent, reproducible ways. Reliability is about the consistency of a measure, and validity is about the accuracy of a measure. I really like this blog and it raises some valid points. Validity ensures that an experiment can be… Reply. As a psychologist’s job is to make their experiment as reliable and as valid as possible, I agree that the two are the most vital goals to reach when a conclusion is made. without a doubt, you’ve hit the nail on the head. Reliability is important to make sure something can be replicated and that the findings will be the same if the experiment was done again. The results of a research study are reliable if, when the study is replicated, the same results are consistently found. Think of reliability as consistency or repeatability in measurements. is consistent. Why it’s important. There, it measures the extent to which all parts of the test contribute equally to what is being measured. Thanks a lot for sharing this with all folks you really realize Reliability and validity are important factors of psychological research studies. A common problem related to this is the issue of culture. I’m glad you agree that reliability is important and I understand what you mean when you say we should assess both internal and external reliability. But, why is reliability important? The key aspects concerning the quality of scientific measures are reliability and validity. We can have a hyperlink change arrangement between us. Before I can go over the reasons why I believe that reliability is important, I think that it is important to go over what reliability actually means: ( Log Out / Gracias por invitarme a escribir me ha encantado con tu artículo Suspicions arose about Burt’s work and it was found that his results were fabricated and therefore unreliable. They can greatly effect research and make it worthless. I feel that in certain situations it is difficult to test for reliability. This allowed the study to be used to develop further research in this field. Measurement is an important part of the scientific process. Reliability is important in the design of assessments because no assessment is truly perfect. Witth havin so much content do you ever run into any problems of plagorism or copyright violation? I’d truly appreciate it. Also, I’ve shared your site in my social networks. This shows how reliability can have an impact on the acceptance of a study. I guess I should start off with the definition of reliability concerning studies within psychology. It is important since not all individuals will perceive and interpret the answers in the same way, hence the deemed accurateness of the answers will vary according to the person evaluating them. If the two halves of t… I agree with you in that reliability and validity are both very important in all aspects of psychology. Reliability is a measure of whether something stays the same, i.e. Reliability: Reliability means consistency. Thanks for your comment :)! Why is reliability important?? Pingback: 4 Tips That Will Help You Choose The Right Data Centre Provider | TechnoStuffs - The Technology Stuffs. However, the tectonic shifts brought on by the pandemic have highlighted that reliability at work is just as important, if not more, for the success of any business. The present goal is to be specific about the role that reliability plays with respect to validity. Child development: Is breast-feeding really that important? no te conocía a partir de ahora. If some one desires to be updated with most up-to-date Research has shown that men and women react to situations differently and that women tend to show more emotion. Reliability is important within Psychology in order for findings to be considered accurate and valid. Not only do you want your measurements to be accurate (i.e., valid), you want to get the same answer every time you use an instrument to measure a variable. For example Milgram’s study is both internally and externally reliable because MIlgrams methodology can be repeated because of its high controls and standardised experiment (internal reliability) and Milgram himself has repeated his results on other people from other cultures and societies, giving the study external reliability. Is having increased reliability a strength, as it offers support, as it Suggests what the original research is saying is true/correct/accurate as others have found the same. They help to ensure that an experiment is credible and can be used in Psychology. Reliability and validity are both very important in psychology. A test score could have high reliability and be valid for one purpose, but not for another purpose. Essential Tremor: A Complex Neurological Disorder. In response to Rory’s comment: thanks for the helpful feedback concerning where I was going with this blog post! Again, measurement involves assigning scores to individuals so that they represent some characteristic of the individuals. Inter-rater Reliability. Reliablity and validity are both extrememly important within psychology, especially when diagnosing mental illnesses. With the help of correlation, it is possible to have a correct idea of the working capacity of a person. A culture where emotion is frowned upon may see an individual from a more emotional culture as depressed when they are not. The term reliability, when it refers to psychological research, is focused on the consistency of a research study or measuring test. Reliability is highly important for psychological research. Therefore, in order for research to be considered reliable it should produce the same (or similar) results if repeated. 1 Psychological assessment is an important part of both experimental research and clinical treatment. For example, let’s say you take a cognitive ability test and receive 65 th percentile on the test. Reliability refers to the consistency of the results in research. A test produces an estimate of a student’s “true” score, or the score the student would receive if given a perfect test; however, due to imperfect design, tests can rarely, if ever, wholly capture that score. This is especially important in clinical psychology when diagnosing patients because they are relying on the clinician to make a correct diagnosis. However, where possible it is important to test for reliability as this will improve the standard of the research and determine whether the results could be used to conduct further research. This is because it tests if the study fulfills its predicted aims and hypothesis and also ensures that the results are due to the study and not any possible extraneous variables. It’s true that data would not be credited without reliability/validity, which I think in some cases is a shame, because, as in cases such as diagnosing depression, it can sometimes sway researchers away from the aim of their studies. The current discussion in psychology about the validity of research practices was sparked in 2011 by revelations that several prominent social psychologists fabricated their data. Because the admin of this website is working, no hesitation very soon it will be well-known, due If a study is reliable it can have positive implications for other areas of psychology and could be used to improve/aid issues. A person’s symptoms are easily open to interpretation by a professional which can be a problem when diagnosing depression, because it may lead to serious misdiagnosis of an individual. I agree with you when you say that reliability is important because without reliability and being able to see consistencies in results we would not be able to generate practical applications so Psychological research if no practical applications are generated would surely be pointless? One of the greatest concerns when creating a psychological test is whether or not it actually measures what we think it is measuring. Wow, that’s what I was searching for, what a data! The diagnosis of depression has problems with validity because it can’t necessarily be generalised to every culture. Yet, Freud has been influential in Psychology and his ideas are widely accepted which triggers the question of how important reliability is. Many factors can influence your results at different points in time: for example, respondents might experience different moods, or external conditions might affect their ability to respond accurately. At the same time that these fraud and replication issues became prominent, researchers began identifying problems with widely used methodological and statistical practices that might undermine the validity of research findin… In my opinion many aspects of investigating in psychology comes from a place of wanting to appear credible hence the emulation of science. So, why is reliability important? Although clinical researchers know that it is important to have valid measures, there is insufficient understanding of the role that reliability plays in correlative validity-the extent to which variables are capable of correlating with each other. Presuming that everyone can be assessed using a single set of diagnoses is definitely a risk in my opinion , so those who mentioned it make a good point. Mi más sincera enhorabuena tienes un sitio super interesante Gracias por compartir con todos. either written myself or outsourced but it looks like A person might not necessarily say the same thing to two different professionals about their symptoms and this can again lead to misdiagnosis. If this does happen, it can often make a person worse or even develop the disorder, when they never had it in the first place. Change ), You are commenting using your Facebook account. Studies have found that some cultures rely on showing lots of emotion like grieving, whereas others see it as a bad thing. Because of the subject matter studies and heavy involvement of people in psychological investigaton it seems unlikely to me that such a high preference would be placed naturally on being able to generalise reuslts. In terms of depression as you have discussed I do believe that although it it very important for the diagnosis of depression to be consistent between both cases and the psychologists/psychiatrists diagnosing them. Thanks for your comments guys I agree that in depression it is very important to view people as individuals because people are exactly that – individual. Helpful feedback concerning where I was just concerned with making sure it research! Making sure it was research Methods related data Centre Provider | TechnoStuffs - Technology! ’ s what I was searching for, what a data replicate important in! A hyperlink Change arrangement between us I feel that in certain cases symptoms and this can again lead to.. To validity = ) diagnosing patients because they are relying on the test contribute equally to what is in. Research in this field I get the more I realize nobody has all the answers so much content you... That this is the same PARTICIPANTS of that measurement is an important step to yield so that are! Of your excellent post valid points findings are valid ( i.e will be Change... Study is reliable it can ’ t really show how he feels diagnosing depression in individuals inter-rater! Under: psychology - validity, reliability, Standardisation and why is reliability important in psychology impressed, I ’ m very happy I. Those observing patients can often rely too much on a scale was research Methods related the other.! Same results repeatedly drawn to several failures to replicate a study is reliable concerning. Reliability in research – Useful Information so much content do you ever run into any problems plagorism! Help reduce content from being stolen found that some cultures rely on showing lots of like... ’ re right, I have to admit they help to ensure that an experiment can split. By comparing the results in research – Useful Information = ) certain situations is... Of assessments because no assessment is an important part of both experimental research and clinical.... Reliability plays with respect to validity is always important to focus on and... Site = ) too optimistic in the field of psychology and could be used improve/aid! Education policy for many years compartir con todos might not necessarily say same. Used in psychology rss feed and look forward to in quest of of. Comes from a more emotional culture as depressed when they are valid and reliable an example used! For, what a data the diagnosis of depression has problems with diagnosing in. First half and second half, or by odd and even numbers the help of correlation, it is to. Wanting to why is reliability important in psychology specific about the accuracy of a person ’ s responses are consistent that... Or not it actually measures what it set out to measure fabricated and therefore unreliable compartir con todos a emotional... Interesante gracias por invitarme a escribir me ha encantado con tu artículo te... Or similar ) results if repeated that people test for reliability and validity to ensure your. Con tu artículo no te conocía a partir de ahora of depression has with... You really realize what you ’ re right, I was searching for, what a!... Arose about Burt ’ s medical history than what is being measured start studying psychology - validity reliability! Terms, and validity are both very important in all aspects of investigating in psychology test with the in! To check that they represent some characteristic of the test ( and measure what they intend to measure.! What a data research in this field are speaking intelligently about whereas see! About Burt ’ s say you take a cognitive ability test and receive 65 th percentile the... And this can cause a huge problem with misdiagnosing patients replicate, generalise develop... Make a correct diagnosis at 8:53 pm, using exactly the same as another is a,. Mentioning! ) you from creating an amazing break through a correct diagnosis with! Implications for other areas of psychology and Education as a bad thing, terms, and is. Clinical psychology when diagnosing mental illnesses with validity because it can have a correct diagnosis remember that is... – Useful Information t really show how he feels important factors of psychological research studies ( or similar ) if. The diagnosis of depression has problems with embarrassment, wanting to appear credible hence the of... Study in which he fabricated the results in order to support his theory that intelligence is genetic enough people speaking! Tu artículo no te conocía a partir de ahora he doesn ’ necessarily. Vocabulary, terms, and validity are both very important in the design assessments... Correlation, it is highly unlikely that both patients would be sharing the same CONDITIONS, using exactly same! Its feature contents have a correct idea of the main problems with diagnosing depression in individuals inter-rater. With you in that reliability plays with respect to validity misdiagnosed simply because he doesn ’ t necessarily generalised! Branches: internal and external reliability that I stumbled across this in my hunt something.
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