Statistics - Statistically Significance vs. Practical Significance?

Question

If there is no statistical significance present in a study, is it safe to say that there is no practical significance, as well? I understand that if it were to be statistically significant you have to determine yourself, but I have on values to go off from since it's not statistically significant. So, I'm kind of confused how that works.

More specially, I'm reading this article and saw that there was no statistically significant evidence, and I'm unsure about how to explain the practical...
Link: http://www.medicalnewstoday.com/articles/250142.php

Answer 1

let me distinguish a little

1. practical significance = if it means anyhting to your life.

2. Statistical significance = what the numbers tell you.

3. actual significance = actual effect measured as a number



If "actual significance=0", it is not "practical significant". ("actual significance=0" implies "not practical significant"). But "not statistical significance" does not imply "actual significance=0", but rather "actual significance


As to your link, the sample size is 20000 meaning "no statistical significance" implies that "actual significance" is very, very small. Therefore, I feel confident to say that there is no practical significance.



Hope it made sense. I found it difficult to explain, even though it is quite simple.

Answer 2

Statistical importance shows the replace between 2 hypotheses are exceptionally diverse with special threat while in smart/scientific importance, no threat is in contact. the end results of an test is placed as is. with the aid of fact the random pattern measurement will become larger and bigger, the vigor (danger of making a appropriate determination) of the statistical test will strengthen. that's, we are an increasing variety of outstanding in asserting importance or non-importance.

Answer 3

Nope, I donot think