WGU C207 STUDY GUIDE MODULE 5 & 6 ALREADY PASSED

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WGU C207 STUDY GUIDE MODULE 5 & 6 ALREADY PASSED incidence rate ✔✔would be used if we want to measure the proportion of health workers who acquire Ebola from working with Ebola patients percen... tile ✔✔indicates the percent of the population that falls below a certain value standard score ✔✔for a particular data point, represents the distance from the mean in terms of standard deviations Analysis of variance (ANOVA) ✔✔is used to determine if three or more sample means are statistically not all equal norm reference test ✔✔is a test that compares an individual to other individuals on the bellshaped curve criterion referenced test ✔✔compares an individual to certain defined standards observed score ✔✔is the score actually achieved by an individual on a test. true score ✔✔is the average score an individual would achieve if he or she were to take the test infinite times random measurement error ✔✔can eventually be eliminated over time as the number of tests increases (according to Classic Test Theory) systematic measurement error ✔✔occurs when something that is entirely unrelated to the test is affecting test scores item response theory ✔✔takes into account that different questions may have different levels of difficulty reliability index ✔✔measures how well a person's observed score on a test represents that person's true score test retest method ✔✔applies when the same test is given to the same sample on two different occasions parallel forms method ✔✔applies when two versions of a test are given at the same time to each of half of a sample of students item analysis ✔✔is the study of the results of each individual question on a test T ✔✔Results-based management is built upon partnership and inclusiveness F ✔✔Ethical issues are not a concern with the use of Big Data T ✔✔A problem with Big Data is that there's too much of it T ✔✔Data mining will often find trends, but usually overlooks the underlying causes F ✔✔Index numbers typically relate today's prices to those expected in the future F ✔✔An index number of 100 indicates that the price or quantity has increased 100 times since the base period T ✔✔The Consumer Price Index is the main measure of inflation in the U.S. F ✔✔A ratio and a proportion are the same thing F ✔✔Prevalence and incidence are the same thing T ✔✔An incidence rate would be useful for assessing if a treatment or preventative measure is effective in slowing the spread of a disease F ✔✔For a student who scores in the 25th percentile, this means that only 25% scored better than this student F ✔✔Hilda scored 75 on a test with a mean of 50 and a standard deviation of 25. On a second test she scored 60 on a test with a mean of 40 and a standard deviation of 10. Hilda's Z-score is higher for the first test. T ✔✔Z-scores always have a mean of 0 and a standard deviation of 1 T ✔✔For an ANOVA, the larger the F-ratio, the more likely there is a statistically significant difference T ✔✔A standard score is a type of norm-referenced measurement T ✔✔The final exam for this course, in which there is a specific cut score, is an example of a criterion-referenced test F ✔✔True Score Theory assumes that there is no random error T ✔✔The GRE and GMAT are examples where Item Response Theory is applied to their tests T ✔✔A challenge with determining a reliability index is that it is not possible to obtain true scores T ✔✔For a particular test, the students who scored in the top 20% got question #6 correct 80% of the time, while those who scored in the bottom 20% on the text got question #6 correct only 35% of the time. Based on item analysis, question #6 is considered a consistent, good discriminating question. T ✔✔Cost-benefit analyses in the Public Sector can be quite different from cost-benefit analyses in the private sector F ✔✔In the Public Sector, revenue generation is more important than the overall benefit to the general welfare of the population T ✔✔Municipal governments will often consider the payback period when evaluating a major utility project Impact ✔✔Which of the following is the last step of Results-Based Management? All of these (simplicity, transparency, flexibility) ✔✔Which of the following are vital to a Results-Based Management system's success? Results Based Management ✔✔Which of these takes a life-cycle approach? Big Data ✔✔Netflix has an algorithm to come up with recommended movie titles for its subscribers. It does so by making use of... all of these ✔✔Which of these are ways in which Big Data creates value? a base period ✔✔In calculating an index number, the denominator is generally a price from... 50 ✔✔Suppose that you want to express the average cost of gas in January 2015 ($2 per gallon) to that in July 2008 ($4 per gallon) as a simple index number. Then the value would be... weighted composite index ✔✔John creates an aptitude index in which he gives 60% importance to a verbal performance measure and 40% importance to a quantitative performance measure. John should create a... the # of males divided by the # of femalies ✔✔A gender ratio is.... .10 and .02 respectively ✔✔In a small African town of 1,000 people, a total of 100 people have died of Ebola, and of these 20 have died in the last month. In this case, the prevalence and cumulative incidence of ebola in this town are... the student's percentile score for their school ✔✔Average high school senior math assessment scores differs significantly between schools. A college admission office wants to understand a student's performance relative to his/her classmates from their particular school. In this case, the most appropriate measure is.... Ho: μ1 = μ2 = μ3 ✔✔William scored 30 on a test with a mean of 20 and a standard deviation of 10. On a second test, he scored a 50 on a test with a mean of 35 and a standard deviation of 15. In terms of standard scores... introduced systematic measurement error ✔✔In the middle of an online exam, the power goes off and only the questions answered to that point are graded. For the resultant exam score, the power going off... test-retest method ✔✔Giving the same test to the same sample at two different times would be an example of... in a test w/o systematic error, the observed score is the true score plus random error ✔✔True Score Theory states that.... performance measures ✔✔entail data collection and analytics to evaluate the efficiency of an individual, group, or organization critical success factors ✔✔are those factors (quality, customer service, efficiency, etc.) critical to an organization achieving its goals Key Performance Indicators (KPI)'s ✔✔are performance measures that organizations use to quantify their level of success KPI dashboard ✔✔is a visual representation of multiple KPIs (shown as charts, tables, etc.) Balanced Scoreboard (BSC) ✔✔examines an organization's performance through four perspectives Net promoter Score ✔✔quantifies the strength of a company's customer relations F ✔✔In business, performance measures always involve financial measures T ✔✔Management compensation or bonuses are often tied to improvement in KPIs F ✔✔A disadvantage of KPIs is that they are only used by upper management F ✔✔KPIs can provide a directional read of performance, but changes in KPIs cannot be statistically assessed T ✔✔A successful Balanced Scorecard should reflect the company's strategy T ✔✔"In the use of a Balanced Scorecard... Variance = actual performance - target performance" F ✔✔Overall satisfaction ratings are used in deriving a Net Promoter Score T ✔✔It is possible for a company to have a negative Net Promoter Score T ✔✔Performance assessment should be linked to a company's strategy meeting profit goals, increasing customer base, produce/service innovation, developing employee skills (all of these) ✔✔Which of the following are possible critical success factors for a company? measurable, attainable, time-bound ✔✔KPIs often follow SMART criteria. Which 3 of the following are part of SMART criteria? financial , customer, learning & growth ✔✔Which 3 of the following are part of the Balanced Scorecard four perspectives? 20-30 ✔✔Most companies have a Net Promoter Score between... 9 or 10 ✔✔Promoters, of a Net Promoter Score, are those who provide a rating of... [Show More]

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