Wilcoxon - Samenvattingen, Aantekeningen en Examens

PSYC 515 Module 5: Week 5 Quiz: Non-parametric Tests Concepts Score for this quiz: 50 out of 50 Submitted Jul 18 at 7:13am This attempt took 21 minutes. Question 1 0 / 0 pts I have read and understand the Academic Honor policy as outlined in the Online Honor Code for Liberty University Online. I agree to abide by this policy and that the work submitted herein is my own. Yes No Question 2 2 / 2 pts Wilcoxon rank-sum test is to _____ as Wilcoxon matched-pairs signed-ranks T test is to _____. ordin...

Nominal, 2 groups (independent) CORRECT ANSWER-Chi squared or Fisher exact test (<5 in any cell; n<20) Nominal, 2 groups (paired/matched) CORRECT ANSWER-McNemar test Nominal, 3+ groups (independent) CORRECT ANSWER-Chi squared or Fisher exact test (<5 in any cell; n<20) Nominal, 3+ groups (paired/matched) CORRECT ANSWER-Cochran Q; Mantel-Haenszel Nominal, 3+ groups, multiple treatments CORRECT ANSWER-Mantel Haenszel test Ordinal 2 Groups (independent) CORRECT ANSWER-Wil...

instrumentation effects Ans: a threat to validity that is minimized by using a reliable outcome of measure and using a standardised protocol to administer to the measure Spurious Ans: When two or more events that are actually independent of one another appear to be related. Might be because the events occur at the same time by coincidence or because of an unseen third (confounding) variable generalizability Ans: refers to external validity p<0.05 Ans: generally accepted alpha val...

Ho = The Null Hypothesis Accepted when no statistical difference was detected between treatment groups; p-value > 0.05 Ha = The Alternative Hypothesis Opposite of the null hypothesis; accepted when there is a statistical significance between the treatment and placebo groups; p-value <0.05 Independent Variables Variables set by the researcher; can be controlled Dependent Variables Variables that will DEPEND on the independent variables; can not be controlled ...

PSYC 515 Module 5: Week 5 Quiz: Non-parametric Tests Concepts Score for this quiz: 50 out of 50 Submitted Jul 18 at 7:13am This attempt took 21 minutes. Question 1 0 / 0 pts I have read and understand the Academic Honor policy as outlined in the Online Honor Code for Liberty University Online. I agree to abide by this policy and that the work submitted herein is my own. Yes No Question 2 2 / 2 pts Wilcoxon rank-sum test is to _____ as Wilcoxon matched-pairs signed-ranks T test is to _____. ordin...

Wilcoxon rank-sum test - correct answer Given a set of data points, ranking orders the data such that for any two data points, one is either greater than, less than, or equal to the other. Ex: Given 3 data points 80, 75, and 99, a possible ranking is 1: 75, 2: 80, 3: 99. Ranking data can provide new insights into a sample population. Ranking data from two different randomly selected populations is the basis for some nonparametric statistical tests. ...

Part 1: Understanding Statistical Methods 1. Identifying Levels of Measurement: Nominal, Ordinal, Interval, and Ratio 2. Identifying Probability and Nonprobability Sampling Methods in Studies 3. Understanding the Sampling Section of a Research Report: Population, Sampling Criteria, Sample Size, Refusal Rate, and Attrition Rate 4. Understanding Reliability of Measurement Methods 5. Understanding Validity of Measurement Methods 6. Understanding Frequencies and Percentages 7. Interpreting Line Grap...

Unpaired T-test correct answer: Continuous data 2 independent samples Paired T-test correct answer: Continuous data 2 paired samples ANOVA correct answer: Continuous outcome data Categorical exposure data 3+ independent variables ANCOVA correct answer: Continuous outcome data Categorical exposure data 3+ independent variables Controls for covariates Wilcoxon Rank Sum Test (Mann-Whitney U Test) correct answer: Ordinal data 2 independent samples Wilcoxon Signed Rank Te...

Test Bank for Introduction to Probability and Statistics 15e 15th Edition by William Mendenhall, Robert J. Beaver/Barbara M. Beaver. Full Chapters test bank included Chapter 1: Describing Data with Graphs 1.1 Variables and Data Types of Variables Exercises 1.2 Graphs for Categorical Data Exercises 1.3 Graphs for Quantitative Data Pie Charts and Bar Charts Line Charts Dotplots Stem and Leaf Plots Interpreting Graphs with a Critical Eye Exercises 1.4 Relative Frequency Histograms ...

Con of tertiary literature? lag time for updates; interpretation is dependent on author opinion; often incomplete Tertiary literature works that summarize, discuss, criticize, etc., the primary literature - guidelines, texts, ACCESS pharmacy Secondary literature index of abstract primary and teriary literature found in journals, provides a rapid method to search for primary literature - Medline, PubMed Evidence-based medicine? The conscientious explicity and judicio...