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Icon What is the difference between descriptive and inferential statistics?
What is the difference between descriptive and inferential statistics?

In the realm of data analysis, both descriptive statistics and inferential statistics play crucial roles, but they serve distinct purposes: Descriptive Statistics:

  • Focus: Describe and summarize the characteristics of a dataset.
  • What they tell you: Provide information like central t...

Icon What is a standard deviation?
What is a standard deviation?

A standard deviation (SD) is a statistical measure that quantifies the amount of variation or spread of data points around the mean (average) in a dataset. It expresses how much, on average, each data point deviates from the mean, providing a more informative understanding of data dispersion compare...

Icon What is criterion validity?
What is criterion validity?

Criterion validity, also known as criterion-related validity, assesses the effectiveness of a test, measure, or instrument in predicting or correlating with an external criterion: a non-test measure considered a gold standard or established indicator of the construct being assessed. Here's a breakd...

Icon What is the formula for Pearson correlation?
What is the formula for Pearson correlation?

The Pearson correlation is denoted with r and calculated as follows: \[r = \frac{covariance\:of\:x\:and\:y}{variability\:of\:x\:and\:y\:seperately}\] or: \[r = \frac{\sum{(x-\bar{x})(y-\bar{y})}}{\sqrt{\sum{(x-\bar{x})^2}\sum{(y-\bar{y})^2}}}\] which is the same as: \[r = \frac{N \sum{xy}-(\sum{x})(...

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Icon SPSS samenvatting
SPSS samenvatting

Deze bundel bevat een samenvatting van SPSS en is gebaseerd op de 24e versie. De volgende delen zijn beschikbaar: Wat is SPSS: een introductie (1) Definities en begrippen in SPSS (2) Afhankelijke en onafhankelijke variabelen (3) Meetschalen van variabelen (4) Gemiddelden berekenen (5) Variantie bere...

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Icon Samenvatting van SPSS Survival Manual van Pallant - 6e druk
Samenvatting van SPSS Survival Manual van Pallant - 6e druk

Samengestelde samenvatting, gebaseerd op de SPSS Survival Manual van Pallant, 6e druk uit 2016. Deze samenvatting is zowel te gebruiken bij versie 24 van IBM SPSS als bij andere versies. Bij gebruik van andere versies kan het voorkomen dat de opties een soortgelijke naam hebben gekregen of een ...

Icon Startmagazine: Introduction to Statistics
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Introduction to Statistics: in short

  • Statistics comprises the arithmetic procedures to organize, sum up and interpret information. By means of statistics you can note information in a compact manner.
  • The aim of statistics is twofold: 1) organizing and summing up of information, in ...

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Icon SPSS samenvatting
SPSS samenvatting

Deze bundel bevat een samenvatting van SPSS en is gebaseerd op de 24e versie. De volgende delen zijn beschikbaar: Wat is SPSS: een introductie (1) Definities en begrippen in SPSS (2) Afhankelijke en onafhankelijke variabelen (3) Meetschalen van variabelen (4) Gemiddelden berekenen (5) Variantie bere...

Icon Startmagazine: Introduction to Statistics
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Introduction to Statistics: in short

  • Statistics comprises the arithmetic procedures to organize, sum up and interpret information. By means of statistics you can note information in a compact manner.
  • The aim of statistics is twofold: 1) organizing and summing up of information, in ...

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