tab_text (self->t, 1, 2, TAB_CENTER | TAT_TITLE, _("t"));
tab_text (self->t, 2, 2, TAB_CENTER | TAT_TITLE, _("df"));
tab_text (self->t, 3, 2, TAB_CENTER | TAT_TITLE, _("Sig. (2-tailed)"));
tab_text (self->t, 4, 2, TAB_CENTER | TAT_TITLE, _("Mean Difference"));
tab_text (self->t, 5, 2, TAB_CENTER | TAT_TITLE, _("Lower"));
tab_text (self->t, 6, 2, TAB_CENTER | TAT_TITLE, _("Upper"));
tab_text (self->t, 1, 2, TAB_CENTER | TAT_TITLE, _("t"));
tab_text (self->t, 2, 2, TAB_CENTER | TAT_TITLE, _("df"));
tab_text (self->t, 3, 2, TAB_CENTER | TAT_TITLE, _("Sig. (2-tailed)"));
tab_text (self->t, 4, 2, TAB_CENTER | TAT_TITLE, _("Mean Difference"));
tab_text (self->t, 5, 2, TAB_CENTER | TAT_TITLE, _("Lower"));
tab_text (self->t, 6, 2, TAB_CENTER | TAT_TITLE, _("Upper"));