Reliability

because, if a random error were to occur, and the diluted Aquasol concentration does not result in the desired concentration, the validity, reliability, and precision of the results is majorly decreased. Whereas if the Aquasol concentrations were already previously diluted in a lab by professionals, or were bought in the correct concentrations, the reliability, validity, and precision of the results would have been have been significantly better. Another weakness in this experimental design was…

believe will support myself in the professional field is the Sensory Profile 2 by Winnie Dunn and Greenspan Social-Emotional Growth Chart by Stanley Greenspan. Speaking about these two instruments, they both promote a reliability and validity. According to Hays (2013), reliability is extremely important for professionals who use psychological testing. With that being said, the method attributes the consistency of the test measurements and excludes chance and nonessential factors in the outcome…

(Salvia, J, Ysseldyke J E, & Bolt, S (2013). Task 2. (a) What is the meaning of, and relationship between, “reliability” and “validity” ? • Reliability is the extent to which a measuring tool gives consistent results. Reliable means to be consistently accurate, also describes as the absence of random error during measurement. There are three types of reliability: items of reliability, stability, and interobserver. • Validity is the extent to which a measuring tool measures what is…

Introduction The novel advancement and growth of information technology to protect patient safety and quality of care with evidence-based research -- practice and health policy start the transformation of research into practice amidst the healthcare organization. According to Polit and Beck (2017), research study is a skillfully organized investigation of variables to explain, manipulate and foresee an experimental event. Data compilation is a critical phase of a research design, inadequate…

component to literacy. One of the standardized tests developed to measure phonological processing is the Comprehensive Test of Phonological Processing (CTOPP), it was published in 1999. In this paper we will discuss the purpose, normative sample, reliability and validity of the CTOPP. The CTOPP is used to identify individuals ages 5 years to 24 years and 11 months, who are significantly below their peers in important phonological abilities. Due to the wide age range covered…

Discussion The results of this study indicate that PSQI-P had acceptable psychometric properties include good reliability and validity in clinical and non-clinical samples. Reliability was higher in the clinical sample than in control group. PSQI-P reliability in our study were somewhat higher than or approximately similar to other PSQI translations(5-8). Although assessment of subjective sleep quality in sleep disordered sample, other clinical condition or general population is an important…

seconds to complete the TUG test, then he or she is at a higher risk for falling (CDC, 2013). The researchers state that the inter-rater reliability of the TUG test is very high among hospital in-patients and community-dwelling older adults (Herman, Giladi, & Hausdorff, 2011). Additionally, the researchers state that the TUG test has a moderate test-retest reliability in a large study of older adults, and the TUG test was able to identify fallers from non-fallers with an 87% sensitivity and…

after identifying this the non-significant scores the scale variable was updated bringing the total from 15 questions to 11. After conducting a discriminative analysis, a Cronbach’s alpha was conducted this refers to a measure used to determine the reliability or consistency of a scale (using and interpreting Cronbach 's alpha, 2016), for a Cronbach 's alpha to be significant it has to be above 0.7, a Cronbach 's alpha of .126 was found, this shows that the items on the scale are measuring the…

Measurement in Research Michael R. Dulin Florida Gulf Coast University Abstract Measurement is: • “the process of observing and recording the observations that are collected as of a research effort.” (Trochim, 2006) • “the assigning of numbers to observations in order to quantify phenomena.” (Kimberlin and Winterstein, 2008) • “characterizing individuals in terms of the issues under study.” (Babbie, Halley, Wagner, & Zaino, 2013) As a society, we thirst for measurement. Does this work?…

Story evaluation The story that will be evaluated is one entitled “Man was paid $2 500 to conceive a child with his neighbor’s beauty queen wife, but failed after 3 months trying”. Firstly, there is doubt in the story due to the source which is responsible for sharing the news. The source is a website known as 9GAG, which does not have any reputable evaluation system, and anyone is free to post a story he or she wants. However, judging by the comments on the post, many individuals assume the…