Reliability And Validity Essay

Validity In research paradigm, validity and reliability are the most basic characteristic issues used in qualitative and quantitative analysis. Validity as a psychometric standard is embedded in a positivist approach, which is relevant in reflecting on the qualitative point of view ascribed to the establishment of the truth. In view of this, definition of positivism ascribe to a theory systematic to validity. Additionally, other empirical conceptions culminating from resided validity include

characteristics, or information of interest. Several factors should be considered before choosing an assessment instrument: the purpose of assessment, the type of assessment outcomes, resource availability, cost, methodology, the amount of time required, reliability, and the audience expectations (Bastos, et al., 2014). The Self-care Heart Failure Index (SCHFI) is the existing instrument that will be utilized in my research study. SCHFI measures 3 domains of self-care: self-care

comprehension the range was from 0.68 to 0.92 and on the concurrent validity estimates with similar measures between 0.55 and 0.71. For word identification the internal consistency was 0.91 to 0.97 and 0.89 and 0.90 on the Word Attack subtests. The validity for the Word Identification subtest ranged from 0.82 to 0.74, and for the Word Attack subtest ranged from 0.83 to 0.90 with similar reading measures (Meisinger, Bloom, &

1. Give a one-sentence definition of internal validity. As an example, I’m going to conduct a study that deprives college students of sleep, to prove their grades will go down as a result. If I found a link between reduced sleep and reduced grades, what is an internally valid conclusion about the results of this study (be specific)? Internal validity is isolating certain variables to determine how well an experiment goes. In your example, we are determining the link between sleep and a decrease

its reliability. A good personality test should have the same findings in different occasions (i.e. test-retest reliability) and also all of the items in the test should be measuring the same thing (i.e. internal consistency). Nevertheless, personality measurement can be evaluated by its validity as well. Construct validity is one of the main subtypes of validity. Construct validity refers to the ability that a personality test measures what it is intended to measure. Discriminant validity is a

The five-factor model (FFM) of personality is a prominent model in psychology to study and understand individual personality. It is based on believes that an individual’s personality can be defined by traits such as human behaviour, patterns of thought, which are stable across an individual’s lifespan. The FFM found that total number of personality traits can be classified into five broad factors or domains. These are namely (1) Openness, (2) Conscientious, (3) Extraversion, (4) Agreeableness and

References………………………………………………………………………………………..14 Abstract The Battelle Developmental Inventory – 2nd Edition (BDI-2) is psychoeducational testing instrument used in special education to assess developmental disorders in infants and young children. This paper looks into how the validity, reliability and norms for the BDI-2 were originally developed.

According to the 2014 edTPA Administrative Report some random sampling was done for scorer reliability with very positive results. Out of 1,808 portfolios (which were double scored independently) the scorers assigned either the same or adjacent scores with total agreement in nearly all cases (93.3%). While that speaks well for the scorer reliability, as far as appropriate sampling for validation and norming the edTPA appears to fall short. There are several mentions

collect the primary data from the study respondents. A Questionnaire is quantitative tool for data collection. The rationale for using questionnaire is that it is cheaper, flexible and allows for replication of the research procedure thus enhancing validity of research findings. Being a study leaning on positivist paradigm Quantitative methods of data collection will be predominant, however qualitative methods can be used within this paradigm Mertens, (2005) 3.9.1: The structure of the Survey Questionnaires

examination only. Therefore, the purpose of this assignment can be divided into three parts. Firstly, the use of long essay format and MCQs in the specific conditions including the benefits and drawbacks of each will be discussed. Secondly, validity and reliability of MCQ exam will be tested. Finally, a case for using the oral examination will be presented in term of how to guarantee that the scoring is reliable. As for the first part, essay questions and MCQs can assess students’ knowledge regarding