An independent-measures study (i.e, Independent Measures t Test) uses two samples, each with n = 15, to compare two treatment conditions. What is the df value for the t statistic for this study?

28

Step-by-step explanation:

Degrees of freedom is defined as the number of independent values or quantities which can be assigned to a statistical distribution.

#In a two sample study, the t-statistic degrees of freedom is calculated as

     #Where denotes the sample size of the sample.

The t-statistic degrees of freedom is thus 28