- Dec 2019
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academic.oup.com academic.oup.com
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Bastian Greshake Tzovaras
See Author Q&A "Power to the People..."with B.G. Tzorvaras and M.P. Ball at http://gigasciencejournal.com/blog/open-humans-qa
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- Oct 2019
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82.196.4.233:3838 82.196.4.233:3838
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more negative
shouldn't this be more positive? (the CI is 0,043; 0,302) And the unstandardized regression coefficient is 0,172.
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0.12 to 0.34 point
Waarom noem je hier twee keer de Confidence interval en niet een keer de ongestandaardiseerde regressiecoefficient (van 0,23)?
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82.196.4.233:3838 82.196.4.233:3838
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BY status3 exposure3
Does this sequence matter? The assignment doesn't really say what is the moderator en what the predictor?
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/PRINT=HOMOGENEITY DESCRIPTIVE
Maakt deze volgorde uit in de syntax? (bij mij staat er eerst descriptive en dan homogeneity)
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82.196.4.233:3838 82.196.4.233:3838
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Squaring, summing, and averaging the solid red arrows (within-groups differences) yields the within-groups variance
Can you explain this? Or can you give an example?
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82.196.4.233:3838 82.196.4.233:3838
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(Standard) normal distribution one or two means > 100 t distribution one or two means each group > 30
What is the difference between these two? When does your sample have to contain >100 people (because when you test 2 means you have 2 groups and do a t-test right, so each group has to be over 30 so a minimum of 60?)
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82.196.4.233:3838 82.196.4.233:3838
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6.3.2 Data generating process
In test exam 1 there is a question about this, but I didn't understand it and reading this did not make it any clearer.. Are there other ways to grasp this?
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82.196.4.233:3838 82.196.4.233:3838
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/FORMAT=NOTABLE
Hoe krijg ik dit in mijn syntax erbij? Zodat je niet die hele tabel Candy weight krijgt? En is dit belangrijk voor in het tentamen?
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82.196.4.233:3838 82.196.4.233:3838
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We have learned that larger samples have smaller standard errors (Section 3.3.1). Smaller standard errors yield larger test statistic values and larger test statistics have smaller p values. In other words, a test on a larger sample is more often statistically significant.
Why do larger samples have smaller standard errors?
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82.196.4.233:3838 82.196.4.233:3838
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Wouter de Nooy
Question regarding bonus point. It says the following in the syllabus: "Students earning less than half of all points receive a fraction of the full bonus point that corresponds to the proportion of all points awarded.". How exactly is that calculated?
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- Jun 2019
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82.196.4.233:3838 82.196.4.233:3838
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ownload the data set candies.sav and use SPSS to apply a Fisher-exact test to the association between candy colour and candy stickiness
Wat is het verschil tussen een Fishers exact test en een Chi-kwadraat test?
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82.196.4.233:3838 82.196.4.233:3838
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Download the data set candies.sav and use SPSS to bootstrap the t test on average weight of yellow and red candies (the example above). The test is available in the Analyze>Compare Means menu.
Wanneer gebruik je one sampled t test, independent t-test en paired sampled t-test? (wat is het verschil tussen deze)
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- Mar 2019
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82.196.4.233:3838 82.196.4.233:3838
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Parameter
Wat is precies een parameter?
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- Oct 2017
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82.196.4.233:3838 82.196.4.233:3838
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9.7 Controlling for Covariates
Q&A
Could you go through how to work with these type of models (covariate) how do they differ/ also in SPSS?
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82.196.4.233:3838 82.196.4.233:3838
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8.1 The Regression Equation
Q&A
Could you go through the equation, where do the values come from, how to work with it, maybe an example question? Thanks!
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