This course explores a variety of research approaches, requires an evaluation of strengths and weaknesses of research studies, and discusses applications. Students select and design the parameters for a thesis project.
Tuesday, January 13, 2015
Blog #8: Reliability and Validity
When doing research it is critical that your study is both reliable and valid. Please discuss briefly what these two terms mean and share how your study was or will be both reliable and valid.
Reliability in research is the ability to repeat a procedure and repeat the result. The actual data outcome may be different but the procedure can be repeated, and could potentially be repeated by a different person. Validity is when you test what you state you are going to test. My study looked at measuring how learning about growth mindset can effect students self-esteem. The surveys I used asked questions that showed whether students believed in growth mindset. The same survey was used for both a pre and post survey so the comparison can be made on a question by question basis. The same survey could be used with another group of students, as well as showing the same video series. Since my study can be repeated it would also be considered reliable.
Validity is based on different types of evidence and whether or not that evidence can be linked to your research. Validity is being able to test what you say you are going to test. Reliability is the process of being able to duplicate your procedure and repeat the results. My study looked at four major areas and they were attention, mood, energy, and participation. These areas were observed after the student participated in physical education class. Data was collected and documented using a a form that was provided. The observer would indicate if the particular behavior was positively or negatively effected. The form and data collection process was kept the same therefore making it reliable and allowing others to replicate it. After looking at my study I believe that I was successful in the areas of reliability and validity.
Reliability refers to the degree to which scale produces consistent results, when repeated measurements are made. Validity implies the extent to which the research instrument measures, what it is intended to measure. My study looked at students reading CVC words and if the the student knew the word, sounded the word out, or missed the word. My study is reliable because the same procedure of reading the words and marking if they missed, sounded out, or knew the words could be used with another group of students reading the same words. My study was able to test CVC words and noting if they could sound out or know the word which makes my test valid.
Validity is the credibility of research. It asks the question, Are the findings relatable to real life? It also is concerned with transferability. Can the findings be placed elsewhere and come out the same? Reliability is whether or not the findings can be replicated. Will the findings be the same if the study were to be repeated? My study involved observing students and recording their actions in a specific situation. The information that was sought after could be repeated given similar students in a similar situation. By focusing on the area of hand-raising with or without recognition by the teacher should give similar results in similar situations to produce valid and reliable information.
Reliability can be defined as the ability to replicate a study, experiment, or test and it will present the same results each time. In other words you can rely on a study or test producing the same/expected result. Validity is evidence based and if material is or can be proven to be accurate or true. My study was reliable because it followed a structured procedure throughout and did not conflict with the students daily routine. Both extrinsic and intrinsic motivators were represented equally making my study reliable. It can also be considered valid because there was research done that included citations from other people's work as well as a data collection method.
Reliability refers to how well a test, study, or experiment produces results. Validity is how well the test, study, experiment measured what it was meant to measure. For my thesis, reliability was met, because the data collected was able to produce results that were directly related to the topic at hand. Also, someone could easily follow the same procedures and get results that apply to the topic over and over again. My thesis showed validity, because the data measure what it was suppose to measure, and there is other research on the topic that has found the same conclusions.
Reliability in research is the ability to repeat a procedure and repeat the result. The actual data outcome may be different but the procedure can be repeated, and could potentially be repeated by a different person. Validity is when you test what you state you are going to test. My study looked at measuring how learning about growth mindset can effect students self-esteem. The surveys I used asked questions that showed whether students believed in growth mindset. The same survey was used for both a pre and post survey so the comparison can be made on a question by question basis. The same survey could be used with another group of students, as well as showing the same video series. Since my study can be repeated it would also be considered reliable.
ReplyDeleteValidity is based on different types of evidence and whether or not that evidence can be linked to your research. Validity is being able to test what you say you are going to test. Reliability is the process of being able to duplicate your procedure and repeat the results. My study looked at four major areas and they were attention, mood, energy, and participation. These areas were observed after the student participated in physical education class. Data was collected and documented using a a form that was provided. The observer would indicate if the particular behavior was positively or negatively effected. The form and data collection process was kept the same therefore making it reliable and allowing others to replicate it. After looking at my study I believe that I was successful in the areas of reliability and validity.
ReplyDeleteReliability refers to the degree to which scale produces consistent results, when repeated measurements are made. Validity implies the extent to which the research instrument measures, what it is intended to measure. My study looked at students reading CVC words and if the the student knew the word, sounded the word out, or missed the word. My study is reliable because the same procedure of reading the words and marking if they missed, sounded out, or knew the words could be used with another group of students reading the same words. My study was able to test CVC words and noting if they could sound out or know the word which makes my test valid.
ReplyDeleteValidity is the credibility of research. It asks the question, Are the findings relatable to real life? It also is concerned with transferability. Can the findings be placed elsewhere and come out the same? Reliability is whether or not the findings can be replicated. Will the findings be the same if the study were to be repeated? My study involved observing students and recording their actions in a specific situation. The information that was sought after could be repeated given similar students in a similar situation. By focusing on the area of hand-raising with or without recognition by the teacher should give similar results in similar situations to produce valid and reliable information.
ReplyDeleteReliability can be defined as the ability to replicate a study, experiment, or test and it will present the same results each time. In other words you can rely on a study or test producing the same/expected result. Validity is evidence based and if material is or can be proven to be accurate or true. My study was reliable because it followed a structured procedure throughout and did not conflict with the students daily routine. Both extrinsic and intrinsic motivators were represented equally making my study reliable. It can also be considered valid because there was research done that included citations from other people's work as well as a data collection method.
ReplyDeleteReliability refers to how well a test, study, or experiment produces results. Validity is how well the test, study, experiment measured what it was meant to measure. For my thesis, reliability was met, because the data collected was able to produce results that were directly related to the topic at hand. Also, someone could easily follow the same procedures and get results that apply to the topic over and over again. My thesis showed validity, because the data measure what it was suppose to measure, and there is other research on the topic that has found the same conclusions.
ReplyDelete