¶ … person's ability/skill/standing relative to other people in order to design an intervention (Cohen & Swerdlik, 2013; Runyon, Coleman, & Pittenger, 2000). Summary statistics (descriptive statistics) allow for the assessor or researcher to summarize the raw data and scores from people being tested. The percentile rank or percentile score represents a person standing relative to other individuals on a particular test (Cohen & Swerdlik, 2013). There are some drawbacks to percentile scores. Obviously if the percentile rank is obtained without consideration for the data then the percentile rank may not be a meaningful or accurate summary statistic. For example, if one uses a standard distribution such as a Z. distribution to determine the percentile rank of a particular score and the distribution of raw scores is not normal then the percentile rank will not be an accurate reflection of the person standing on that particular measure (Huck, 2012). Perhaps, one of the biggest mistakes made in assessment and testing is to treat highly skewed distributions of scores as if they were normal distributions (Cohen & Swerdlik, 2013). This actually happens often on physiological measures such as measures of reaction time, which is typically a positively skewed distribution...
Transforming a highly skewed distribution into a Z. distribution results in an inaccurate representation of the scores (Cohen & Swerdlik, 2013).
Testing and Assessment Describe the basic characteristics of a standardized test and norms. Standardized tests are administered and scored in a consistent manner. When standardized tests are given, conditions are held consistent and conducted in a predetermined way that is considered the standard for the test. Some of the variables that are held constant include, such as the test questions, the conditions for administering the tests, the scoring procedures and interpretations of
person is given a raw score on a particular test the person has no way of knowing how their score compares with other scores on the same test. For example, if a person got a raw score of 62 on a test of reading the person really does not know what that score means relative to the scores of other people who took the same test. When people describe
testing data for the WJ-J-IV Tests of oral language and the test of achievement for Freddie Fictitious. Identify the four Broad Clusters included on these two test batteries, then give the Standard Score for each and using the WJ-IV classification chart what Range (not Proficiency) would you place Freddie for each of these four Broad Clusters? The four broad clusters on these two test batteries include broad reading, broad mathematics,
Vocational Assessments Critiques Stanford-Binet Intelligence Scales, Fifth Edition (SB5) The Stanford-Binet is an individually administered test of intelligence and cognitive abilities for people between the ages of two to 85 years. The SB5 is normed on a stratified random sample of 4,800 people who categorically match the year 2000 United States Census, and the scores have been found to approximate a normal distribution. The SB5 measures the following five factors of cognitive
This researcher obtained a majority of the relevant, scholarly research through Questia, which advertises itself as the world's largest online library. During the third chapter of this research effort, the methodology segment, this researcher relates techniques utilized in the Literature Research Methodology to manipulate information which later contributed to the verdict of the hypothesis for this study. Information related to implementing and retrieving the bullying questionnaire is shared during the
Academic Skills Subscales The Brief Battery for the WJJ-NU consists 9 tests given in the entire exam with three broad academic tests that include: Broad Written Language, Broad Math, and Broad Reading. The Brief Battery of the tests include: Applied Problems, Letter-Word Identification, calculation, Spelling, Passage Comprehension, Writing Samples, Fluency, Reading, Writing Fluency and Math Fluency. Describe the age range: Ages 2-90+ (K to graduate school) State the purpose of the instrument: The instrument is designed
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