Study Guide with lecture notes for Experimental and Correlational Research at the Leiden University

Study Guide with lecture notes

Lecture notes with Experimental and Correlational Research

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Lecture notes with Experimental and Correlational Research at the Leiden University - 2018/2019

Lecture 1
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Lecture 4
Lecture 5
Lecture 6
Lecture 7
Lecture 8

Lecture 1

6/2/2019

-Correlation is about two variables being associated, but there is no evidence of causality.

-Causality however requires multiple factors: covariance (variables have an association), directionality(cause precedes effect (in time)) and internal validity(eliminate alternative explanations).

- Correlations can be displayed in scatterplots that show:

- Direction: positive or negative

- Strength: density of the points

- Shape: linear/nonlinear and homogeneous (one cluster) / heterogeneous (multiple clusters).

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Workgroup notes with Experimental & Correlational Statistics at the Leiden University - 2018/2019

Week 1
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Week 3
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Week 4
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Week 5
Workgroup Tips 5
Week 6
Workgroup tips 6
Week 7
Workgroup tips 7
Week 8
Workgroup tips 8
Answers

Week 1

Prep exercises

Which combination of measurement levels is required for the use of the Pearson, Spearman, and point-biserial correlation respectively?
Which formula is suitable for calculating the Pearson, Spearman, and point-biserial correlations?
Which formula describes the relationship between r_pband t_indep?
Which combination of measurement levels is required for the use of the phi coefficient?

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Psychology Leiden: summaries and study notes - Theme

Studying Psychology in Leiden Study online - Check summaries - Pass exams - Internship abroad

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