In many … examples it does not matter whether a source of strength is to be classified as a tact or as an intraverbal response. It is convenient to group such variables under the rubric “thematic.” (p. 243)
In many … examples it does not matter whether a source of strength is to be classified as a tact or as an intraverbal response. It is convenient to group such variables under the rubric “thematic.” (p. 243)