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SIGN OF T-VALUES IN BOOTSTRAP
Posted: Sat Dec 23, 2006 12:57 pm
by viswadatta
In boot strap, some arrows are to indicate negative values, for eg, environmental uncertainity is to negatively influence organisational effectiveness. In smart PLS I get all values as positive, while in visualPLS I am getting both positive and negative values appropriately. Do I need to apply any settings in bootstrap to get appropriate signs in the t-coefficients?
Regards
Vivek
Posted: Thu Dec 28, 2006 10:39 am
by cringle
There are no special settings required in SmartPLS, you always get the correct and appropriate t-values. It should be clear to you that the sign of the t-value does not matter.
SIGN OF T-VALUES IN BOOTSTRAP
Posted: Wed Jan 03, 2007 3:58 pm
by viswadatta
Thanks, but when we indicate a hypothesis, we need to specify if the relation ship is positive or negative. How do we decide that, if t-values do not have a sign? I understand that the absolute value is to be more than tha cutoff value, say 1.645 (+ or -). Is there any way of proving the nature of the influence?
Regards
Vivek
Posted: Wed Jan 03, 2007 4:10 pm
by cringle
Dear Vivek,
you use the bootstrapping procedure in PLS to test whether a path coefficient is significantly different from zero. So, if the t-value is higher than your cut-off criterion this is fine and depending on the hypothesized nature of your relationship you get the required evidence. This should be fine and from a statical point of view sufficiently correct. However, we may keep this in mind for the next version...
Cheers
Christian
sign of relationship
Posted: Wed Jan 03, 2007 4:27 pm
by viswadatta
Thanks, that means we need to look at the coefficient sign , or the construct correlation sign in the ordinary solution to conclude the nature of the relationship, Is it not?
Regards
Re: SIGN OF T-VALUES IN BOOTSTRAP
Posted: Wed Jan 19, 2022 6:50 pm
by Charlie_Uganda
Hello community,
Is this in any case similar to getting a t-value of 1.778 (which is more than 1.645) and p-value of 0.077 , returning a non significant value??...can i use the explanation of 95% confidence level to explain this sufficiently??
Re: SIGN OF T-VALUES IN BOOTSTRAP
Posted: Sat Jan 22, 2022 4:09 pm
by jmbecker
The t-value threshold for 5% alpha level (or 95% confidence interval) would be 1.96 for a two sided test and 1.645 for a one-sided test. The p-value you are reporting seems to be calculated based on a two-sided test. For a two-sided test the 1.645 t value represents the 10% error level (or 90% confidence interval).