Quick P Value from T Score Calculator
www.socscistatistics.com › pvalues › tdistributionP Value from T Score Calculator. This should be self-explanatory, but just in case it's not: your t -score goes in the T Score box, you stick your degrees of freedom in the DF box ( N - 1 for single sample and dependent pairs, ( N1 - 1) + ( N2 - 1) for independent samples), select your significance level and whether you're testing a one or two-tailed hypothesis (if you're not sure, go with the defaults), then press the button.