Search results
Jun 6, 2015 · Look at SPY vs ^GSPC-- the difference seems bigger than can be explained by the ETF fees. Is it only because of SPY re-invests dividends quarterly or something else? Since ^GSPC is a total return index, it should be replicable in principle, correct? Additionally, Yahoo reports a huge volume for ^GSPC, how is this calculated?
- ^GSPC is a price index, not a total return index, so it does not include dividends. SPY is an ETF that holds the underlying stocks. When it receive...
- sp500tr vs spy vs spy total return is interesting. using 11/6/17 to 11/5/18 sp500tr increased by 1.0843. spy increased by 1.05617 per yahoo. using...
- ^GSPC must be a total return index. The difference between it and spy is so small over time that dividends must be included.
May 7, 2019 · the input data used in the study either in extension (e.g., a text file or a binary) or in intension (e.g., a script to generate the data), as well as intermediate results and output data for steps that are nondeterministic and cannot be reproduced in principle;
- 2019/05/07
People also ask
What is reproducibility and replicability in science?
Does a successful replication guarantee the original results of a study?
Why is replicability important in scientific research?
What makes a study “replicable”?
Apr 7, 2019 · While computational reproducibility in scientific research is generally expected when the original data and code are available, lack of ability to replicate a previous study -- or obtain consistent results looking at the same scientific question but with different data -- is more nuanced and occasionally can aid in the process of scientific discovery, says a new congressionally mandated report ...
Here are some of the most significant categories. A lack of access to methodological details, raw data, and research materials. For scientists to be able to reproduce published work, they must be ...
Dec 3, 2018 · The first is that the study is replicable in principle the sense that it can be carried out again, particularly when its methods, procedures and analysis are described in a sufficiently detailed and transparent way.
- Fiona Fidler, John Wilcox
- 2018
If this second study, aimed at the same scientific question but collecting new data, finds consistent results or can draw consistent conclusions, the research is replicable. If a second study explores a similar scientific question but in other contexts or
May 7, 2019 · A fundamental principle of hypothesis testing is that the same data that were used to generate a hypothesis cannot be used to test that hypothesis (de Groot, 2014). In confirmatory research, the details of how a statistical hypothesis test will be conducted must be decided before looking at the data on which it is to be tested.
