Reliability And Validity: Two Important Aspects Of Research In Human Services
Reliability and Validity Paper
Samantha Smith
BSHS/382- Research and Statistics
April 22, 2013
ANGELA COLISTRA
Introduction Reliability and Validity are two important aspects of research in the human services field and without these tools researchers results would be incomplete. This paper will give examples of the different types of reliability and validity and examples on how they apply to human services research. Also this paper will provide examples of data collection methods and data collection instruments used in human services research.
Types of Reliability The criterion of reliability is the consistency or stability, but it may also imply dependability. The different types of reliability are: Alternate-form reliability, Item-to-item reliability, and Test-retest reliability. Alternate-form reliability is the degree of relatedness of different forms of the same test (Rosnow & Rosenthal, 2008), for example a human service researcher gave his or her client the same assessment that describes their characteristics but some of the wording and questions are different the results should be the same, if not the assessment needs to be redone. The second reliability is, Internal-consistency reliability: The overall degree of relatedness of all items in a test or all raters in a judgment study (also called reliability of components), (Rosnow & …show more content…
Examples of data collection method and a data collection instruments used in managerial research are experiments, surveys, and monitoring. It is important to ensure that these data collection methods and instruments are both reliable and valid because human service and managerial research needs to be accurate in order to make a proper decision.
Samantha Smith
BSHS/382- Research and Statistics
April 22, 2013
ANGELA COLISTRA
Introduction Reliability and Validity are two important aspects of research in the human services field and without these tools researchers results would be incomplete. This paper will give examples of the different types of reliability and validity and examples on how they apply to human services research. Also this paper will provide examples of data collection methods and data collection instruments used in human services research.
Types of Reliability The criterion of reliability is the consistency or stability, but it may also imply dependability. The different types of reliability are: Alternate-form reliability, Item-to-item reliability, and Test-retest reliability. Alternate-form reliability is the degree of relatedness of different forms of the same test (Rosnow & Rosenthal, 2008), for example a human service researcher gave his or her client the same assessment that describes their characteristics but some of the wording and questions are different the results should be the same, if not the assessment needs to be redone. The second reliability is, Internal-consistency reliability: The overall degree of relatedness of all items in a test or all raters in a judgment study (also called reliability of components), (Rosnow & …show more content…
Examples of data collection method and a data collection instruments used in managerial research are experiments, surveys, and monitoring. It is important to ensure that these data collection methods and instruments are both reliable and valid because human service and managerial research needs to be accurate in order to make a proper decision.