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Tutor profile: Maxim B.

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Maxim B.
Data Analyst with 8+ years of experience in quantitative research, complex data analysis and statistics, and research methods.
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Questions

Subject: R Programming

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Question:

The "dplyr" package allows you to make a change "X" in a data frame (DF) and then save the change back to that data frame, with the following code: DF %>% X -> DF. What would this code do?: DF %<>% X.

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Maxim B.
Answer:

DF %<>% X would make the same change in DF and immediately save the change to that DF, without needing the extra "X -> DF".

Subject: Psychology

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Question:

What is the name of the state when people experience when there is a mismatch between their behavior and their beliefs, and how can it be resolved?

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Maxim B.
Answer:

cognitive dissonance, and people can resolve it by either changing their behavior or their beliefs.

Subject: Statistics

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Question:

If something is significant at the .05 level, what is the probability that a type 1 error occurred (i.e., your finding was spurious).

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Maxim B.
Answer:

There is a 5% chance that a type 1 error occurred.

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