Certified Biostat Q&A list

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Certified Biostat Q&A list

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Certified Biostat Q&A list

MODULE#1 The Certified Biostatistician Diploma Meeting Minutes

3 Chapters

LECTURES 1-4

8 Lessons

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What does the return() function do in R?

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What does the ^ operator mean in R?

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How do I create a function in R?

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What are dimensions in R, and how can I check them?

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When we can use & and && ?

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How can I change a column name in R?

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What should I do if my list doesn't appear in the Global Environment?

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What are logical operators in R?

LECTURES 5-8

23 Lessons

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How do I identify dependent and explanatory variables when creating a cross-tabulation?

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Why does apply() fail on a single column data frame?

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Why do I get an error when using attach(iris) in R?

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What does numeric(2) mean in R? And what is the dependent variable

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Why library dateset does not run

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What is an if...else statement, and how do I use it in R?

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What is the difference between a dependent variable and an explanatory variable?

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What is the difference between the attach() and detach() functions in R?

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Question about the code of explanatory and dependent variable

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Question about the dataframe that had ID patient , systolic, diastolyic BP

NOTE: the code in the lecture do not write in correct manner The correct is Std_sys_bp[i]=sd(patient_data$systolic_bp[patient_data$patient_id=i])

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How do I clear the Console and Environment in R

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Do indices and vectors need to have the same length in R

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Can I combine multiple functions in a single R command

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Why does the piping %>% operator sometimes return an error in R

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Why do we create empty vectors in R

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What is the dplyr package, and why is it useful

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What is the difference between print(), paste(), and cat() in R

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What is the add dependent table and what is the count cut?

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What does replace = TRUE mean, and when should I use it

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What is cross-tabulation, and how is it used

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What is a probability table in R

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Is it possible to calculate both the mean and standard deviation using apply()

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How do I solve Task 3 in R

LECTURES 9-12

12 Lessons

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How to convert excel sheet to csv sheet?

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What is the difference between & and &&

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What is the dichotomous predictors

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What is the descriptive analysis

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What does the mutate() function do in R

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What are predictors, and how does collinearity affect them

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What are loops in R, and when should I use them

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How is scoring performed in R programming

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What is the difference between mutate() and cut() in R

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What is the purpose of Project 2

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How do I calculate sample size for a study

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Why is my odds ratio code not working in R

MODULE#2 The Certified Biostatistician Diploma Meeting Minutes

3 Chapters

LECTURES 1-5

16 Lessons

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How do we determine the explanatory and dependent variable

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How do we deal with 2 independent variables

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How can we select the appropriate type of test in our data

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Explanation of the three M&Ms and Dice examples When we use multiplication rule

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What is the range of skewness and keratosis

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What is the non-parametric data?

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What is the difference between the observed and expected value

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What is the difference between bio probability and APR package

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What is the degree of freedom and how we calculate it and what is the difference between different tests

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What do we do when we cannot download any library

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Is the probability being essential

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Is there is difference between the mean +_ SD and mean (SD)

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If we make the transformation, is it necessary to determine it in document

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How do we interpret the result in r programming

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How do we use log normal, skewness and keratosis

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How do we know dependent and independent when using cross tabulation

LECTURES 6-10

20 Lessons

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The steps of factorial analysis

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Is there a limit to Anova

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Is it necessary to know the correlation between variables in factor analysis

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In factor extraction; how do we do factor scoring and what is the aim of it

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Illustration of factor analysis and what is the latent variable with example

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Illustrates the journey from receiving data until the result

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How do we determine the number of factors in factor analysis

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How do we deal with data

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How can we compare between 2 categorical data

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Does the manova test has post hock test

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Does Anova test apply on categorical variable

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When do we do post hock test

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When do we use dummy variable

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When do we do MANOVA test

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What is the set seed

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What is the numbers from SS loading and proportional rotation refer to

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What is the non-parametric test

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What is the function of chi square in factor analysis (behind the scene)

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What is the degree of freedom

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What is the difference between Anova, MANCOVA, and twice Anova

LECTURES 11-14

8 Lessons

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if we do the omission for NA delete the column

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How do we use t test in comparison between the different groups

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why do we must principle and factor analysis

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what is the difference between the principal and explanatory factor

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Illustrates the project TWO steps

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what is purpose of factor analysis and variance explain

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Is it necessary to separate the groups in project two

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Is R programming has the ability to save the data and what we can do if we need to exclude the control group

MODULE#3 The Certified Biostatistician Diploma Meeting Minutes

1 Chapter

LECTURES 1-5

12 Lessons

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If we do analysis on different age groups, how do we deal with it

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How to be a professional biostatistician

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When do we use regression, and what are the risk factors and confounders

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What is the residual function, and what is the outcome

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What is the linear regression

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What is the interaction term

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What is the factor analysis

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What is the criteria of independent variables to do the regression

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What is the aim of the regression

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What are the criteria for selecting a dependent variable What is multiple linear regression What is the aim of component analysi

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What is a dummy, what is its aim, and when do we use it

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Is the codes in meta analysis different And if we need the exact steps to do it, what is the source

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About the teacher

Sara Adel

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