Why is validity important in research?

First of all I am going to give a definition of the word validity. One defintion of validity is the state or quality of being valid; to question the validity of the arguement. (http://dictionary.reference.com/browse/validity).

Now I am going to explain a bit about what validity is. Validity is the extent to which a test measures what it claims to measure. It is vital for a test to be valid in order for the results to be accurately applied and interpreted. (http://psychology.about.com/od/researchmethods/f/validity.htm).

Now I am going to answer the question. Validity is the power of deduction. Validity is important in research because without it your results are meaningless and people would have wasted a great deal of time collecting and analysing the data.

There are three different types of validity; content, criterion-related and construct validity.  (http://www.txdirector.com/tf399724.tip.html). This is important because the three different types of validity are used in different researchs and one may be valid to one research but may not be valid in the next. Content validity relies on judgements which is different to criterion-related valdity, which relies on statistical analyses and contsruct validity concentrates on understading what is being measured, it does this by examining the relationship between constructs.  (http://www.txdirector.com/tf399724.tip.html).

Validity is important in Psychology because you have to be able to use the experiements outside of Psychology as well as in the subject. 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. The results have to be valid as they may be used outside of the field of Psychology, so if they are not valid then it may gave Psychology a bad name and people may not trust them anymore and they may not be able to get any more funding to do more experiments or research as people will not be able to relay on them and they may be not believe in their work.

Here is where I got some of my information from. I found some of the sites quite interesting:

http://dictionary.reference.com/browse/validity

http://psychology.about.com/od/researchmethods/f/validity.htm

http://www.txdirector.com/tf399724.tip.html

 

 

 

 

 

 

About these ads

7 Responses to “Why is validity important in research?”

  1. I agree that validity is an important factor of psychological research. If a study has high validity then it is easier for the findings to be applied to the real world. After all, research is done to improve the world, to gain a clearer understanding of the world and to generally make the world a better place, therefore research with very low validity, that cannot be easily applied to the real world is less useful and could be seen by some as a waste of resources.

  2. Anonymous Says:

    You approached this question really well, giving a definition of validity, as well as linking this to Psychology. You mentioned the different types of validity such as criterion and content, which shows your understanding of the topic. I agree with the point that you made about the importance of valid results as they need to be realistic. In addition to your points, another type of validity that is equally important is ecological validity (external Validity) which refers to the way in which a piece of research can reflect everyday life. For example the environment that the research is conducted needs to be realistic for the participants, so that natural behaviour can be recorded. Task validity is also important whereby the procedure that is undertaken has to reflect an everyday basis and something that a paticipant would do.

  3. Anonymous Says:

    You approached this question really well, giving a definition of validity, as well as linking this to Psychology. You mentioned the different types of validity such as criterion and content validity, which shows your understanding of the topic. I agree with the point that you made about the importance of valid results as they need to be realistic. In addition to your points, another type of validity that is equally important is ecological validity (external validity) which refers to the way in which a piece of research can reflect everyday life. For example the environment that the research is conducted needs to be realistic for the participants, so that natural behaviour can be recorded. Task validity is also important whereby the procedure that is undertaken has to reflect an everyday basis and something that a participant would do.

  4. Anonymous Says:

    I agree with the importance of valid results in psychology. If results are found to be valid then they can be applied to the real world. You have listed the types of validity, but in addition there is external validity. External validity refers to whether or not data gathered from a lab experiment (often a small sample of date) can be extended to represent the whole population. If a study has poor external validity then it will not be taken seriously, as how can it explain the whole population, or sample population?

  5. You have explained your point well. I agree that validity is very important in the field of Psychology. Do you think that validity and reliability go hand in hand? Can one exist without the other? If so, what do you think the effect on research would be? It is interesting to think that something which may be considered valid today may be completely disregarded in the future, maybe that is something you could have explored a bit, validity with respect to time and progression.

  6. I agree with you in saying that validity is important when researching in Psychology as validity involves the research measuring what it intends to measure however it is also important to consider that a result must be reliable before it can be valid. A study of high validity is more precise and accurate meaning the results found have been confirmed as reliable and a conclusion has been drawn in order to make certain that the results are true. Validity ensures that the results found are meaningful and appropriate.

    Validity is used in both quantitative and qualitative research however it can be much more difficult to determine whether qualitative research is valid or not. As you mentioned, it is important that the results found are valid as collecting and analysing the data can take great deals of time and money and if the results are invalid, they can not be used.

  7. Your style is really unique in comparison to other people I have read stuff from.
    Thank you for posting when you have the opportunity, Guess I’ll just book mark this web site.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

Follow

Get every new post delivered to your Inbox.

%d bloggers like this: