Factorial designs Samenvattingen, Aantekeningen en Examens

Confounding Variable A variable that directly or indirectly correlates with both the dependent and the independent variables Strategies for controlling confounding variables 1. keep some things constant 2. include a control group 3. randomly assign people to groups 4. use one or more pre-tests to assess equivalence before treatment/experiment 5. expose participants to all experimental treatments 6. statistically control for confounding variables Types of experimental designs...

IBCLC research Qualitative - correct answer Data in the form of words, experiences Quantitative - correct answer Data that is in numbers Experimental designs - correct answer Randomized clinical trials Factorial designs quasi-experimental design - correct answer Retrospective Prospective Descriptive correlational Univariate descriptive Needs assessment - correct answer Collects info about the needs of a group Historical research - correct answer Aims to identify relationships...

Bonferroni-Holm Multiple Comparisons : -In the context of an ANOVA, rejecting the null hypothesis means there is a statistical difference between at least two means, but it won't tell you where it is. You use this to discover exactly which means are different. -Only used for Model I ANOVAs -A t-statistic for a two sample t-test assuming equal variance Steps to Applying the Bonferroni-Holm Multiple Comparison Test : Step 1: Calculate test statistics and corresponding P values for each ...

True or False In order to manipulate the levels of each factor in a factorial design, we mus select a sample from at least two or more different populations. - correct answer-False A researcher conducts a 4X2 factorial design with 10 participants observed in each group. How many participants are needed to conduct this experiment if the researcher conducts each of the following designs? Between-subjects factorial design - correct answer-80 participants A researcher conducts a 4X2 factor...

Confounding Variable A variable that directly or indirectly correlates with both the dependent and the independent variables Strategies for controlling confounding variables 1. keep some things constant 2. include a control group 3. randomly assign people to groups 4. use one or more pre-tests to assess equivalence before treatment/experiment 5. expose participants to all experimental treatments 6. statistically control for confounding variables Types of experimental designs...

sage final exam questions and answers the simplest possible kind of true experiment is ___ -a one-group design -a two-groups design -a one-way design -a 2 X 2 factorial design - Answer- a two-groups design The major limitation of one-way experimental designs is that they only allow researchers to look at one ______ at a time. -independent variable -dependent variable -control group -treatment condition - Answer- independent variable How many cells (i.e., how many unique experimental ...

ex post facto observing what has already happened ex post facto features no manipulation of iv, report of what happened, causation cannot be demonstrated ex post facto uses used in situations where manipulation is imposible, where situation has occurred ex post facto stages define problem, state hypothesis, select sample, identify criteria for classification, gather data, compare data, analyse ex post facto approaches prospective, retrospective prospective...

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 ...

TEST BANK for An Adventure in Statistics: The Reality Enigma Second Edition by Andy Field. ISBN-10 6. All Chapters 1-17. (Complete Download). TABLE OF CONTENT Page: 1 Chapter 1: Why you need science involves Page: 5 Chapter 2: Reporting research, variables and measurement Page: 9 Chapter 3: Summarizing data Page: 15 distribution Chapter 4: Fitting models (central tendency) Page : 21 2.83 Chapter 5: Presenting Data Page : 31 Chapter 6: z-scores Page : 33 Chapter 7: Probability Page : 37 Chapter...

Asvab Practice math questions and answers already graded A Which of the following is the smallest prime number greater than 200? A. 201. B. 205. C. 211. D. 214 211 If 40% is equal to the fraction x/30, what is the value of x? A. 0.4 B. 15 C. 1,200 D. 12 12 The expression "5 factorial" equals A. 125. B. 120. C. 25. D. 10. 120 What is the result of subtracting 3x² - 5x - 1 from 8x² + 2x + 9? A. 5x² - 3x - 10 B. -5x² - 3x - 10 C. 5x² +7x - 8 D. -5x² - 7x + 8 5x² +7x - 8 Wh...