mensu
1.What is the difference between Accuracy and precision?
.Precision: the closeness of the measurement to the true value
.Accuracy: the degree of agreement in a series of measurements
2.Measures of central tendency:
. The Arithmetic mean:
. Mode:
3. Measures of variability:
. The standard deviation: is a measure of the spread of scores within a set of data (La desviación estándar es una medida de la extensión de las puntuaciones dentro de un conjunto de datos).
-Population standard deviation: our population
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Q. explain non parametric methods
1. Mann-Whitney U Test (Wilcoxon Rank-Sum Test): Used to compare the distributions of two independent groups or samples to determine if they have different medians. It is an alternative to the independent samples t-test.
2. Wilcoxon Signed-Rank Test: Used to compare the medians of paired or matched samples to determine if there is a significant difference. It is an alternative to the paired samples t-test.
3. Kruskal-Wallis Test: Used to compare the distributions of
study guide
Moderate:10% (IQ of 36-51)Severe:3-4% (IQ of 20-35)Profound:1-2% (IQ of 19 & Bellow) identified early b/c baby’s developmental benchmarks Principles of supported employment:job coaching is faded to minimal levels,Stable at 20% of work hours per month for 2 months.Visual impairments:functional disturbances in vision affecting field of vision, color perception.Persons with visual acuity from 20/70 to 20/200. Legally blind 20/200 in best eye with corrected vision,or <20% visual field (norm
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the main or the key concept here is SLA, which is the study of how people acquire a second language other than their mother tongue. one of the branches is INTERLANGUAGE. the term interlanguage was coined by Larry Selinker in 1972. It i s a unique linguistic system, neither l1 nor l2. it is something in between. It has to do with the production of the learner in terms of oral discourse or written discourse. It is flexible, dynamic under permanent construction, it has some characteristics that are
int marketing
Distribution process: the physical handling, distribution of goods, passage of owner ship, finally the most important, stand point of marketing strategy- the buying and selling negotiations between producers and intermediaries and between intermediaries and customers…Each country has a distribution structure which goods pass from producer to user. Within the structure are a variety of intermediates whose customary functions (activities, existing competition, market characteristics, tradition,
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Gastritis Acute inflammatory process that occurs acutely in the gastric mucosa, may have endogenous or exogenous causes. Occurs due to increased gastric secretion, decreased production of bicarbonate and blood flow, disruption of the mucosal layer and direct injury to the epithelium. Demonstrations: Asymptomatic, abdominal pain, nausea and or vomiting, gastrointestinal bleeding (Hematemesis and Melena) Gastritis Chronic inflammation in the gastric mucosa with infiltration of mononuclear and polymorphonuclear
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