Statistics and Data analysis Methods?

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What is the difference between sampling error and sampling bias?

Both sampling error and sampling bias are important concepts in statistics, but they represent distinct phenomena that can affect the accuracy and generalizability of research findings. Here's a breakdown to clarify the key differences:

FeatureSampling ErrorSampling Bias
DefinitionThe inevitable difference between a population parameter and its estimate
.......read more

What is sampling bias?

In the realm of statistics, sampling bias refers to a systematic distortion that occurs when a sample does not fairly represent the entire population it is drawn from. This distortion can lead to misleading conclusions about the population if left unaddressed.

Here's a breakdown of the key points about sampling bias:

  • Misrepresentation: Unlike sampling
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Study Guide with flashcards and definitions with Statistics of Biology at Utrecht University

Flashcards and definitions with Statistics of Biology

Online flashcards with Statistics of Biology

  • Histogram
  • P-value
  • Boxplot
  • One sample t-test
  • Paired t-test
  • Two sample t-test
  • Pie chart
  • Ordinary differential equation (ODE)
  • Hill function
  • Density dependent birth rate
  • Density dependent death rate
  • Cellular automata
  • Individual based models
  • Partial differential equations
  • Event based models
  • Lotka-Volterra model
  • Competitive exclusion
  • Hopf-bifurcation
  • For flashcards and definitions, see the supporting content of this study guide
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What is a boxplot?

A boxplot, also known as a box and whisker plot, is a graphical representation of the five-number summary of a dataset. It helps visualize the distribution, spread, and potential outliers of the data in a concise way.

Here are the key elements of a boxplot:

  • Box: Represents the interquartile range (IQR), which encompasses the middle 50% of the data. The
.......read more

What is a p-value?

A p-value, short for probability value, is a statistical measurement used in hypothesis testing. It tells you the probability of observing the results you obtained in your study, assuming the null hypothesis is true.

The null hypothesis, typically denoted by H₀, represents the default assumption that there is no effect or difference between the groups being compared.

Here's a

.......read more

What is a histogram?

A histogram is a graphical representation of the frequency distribution of data. It is a type of bar chart, but with a few important differences:

  • Continuous data: Histograms are used for continuous data, such as height, weight, or temperature. This means that the data can theoretically have any value within a certain range, unlike discrete data (e.g., number of students
.......read more

What is content validity?

Content validity assesses the degree to which the content of a test, measure, or instrument actually represents the specific construct it aims to measure. In simpler terms, it asks: "Does this test truly capture the relevant aspects of what it's supposed to assess?"

Here's a breakdown of key points about content validity:

  • Focuses on
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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 ...

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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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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 ...

SPSS Bijbel

SPSS "Bijbel" Een praktisch en concreet handvat over hoe je SPSS het beste in kan zetten, opgedeeld rondom:

  • Het univariaat lineair model
  • Bilineaire modellen
  • Clusteranalyse
  • en een uitgewerkte oefening

Bron: internet, Joris Pieters 2006

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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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Wat is een variabele? Een variabele is een element dat een bepaalde waarde kan aannemen. Het is een element dat je graag wilt meten en analyseren. Voorbeelden van een variabele zijn ‘geslacht’, ‘leeftijd’, ‘opleidingsniveau’ en ‘IQ’. Middels SPSS kun j...

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