Yes. The punctuation is correct and it is a complete sentence. Nice job!
Inflectional morphemes change what a word does in terms of grammar, but does not create a new word. The inflectional morphemes -ing and -ed are added to the base word skip, to indicate the tense of the word. If a word has an inflectional morpheme, it is still the same word, with a few suffixes added.
The aim of the present paper is to clarify the role of triangulation in mixed methods research designs. Triangulation is used to describe “severe” statistical tests of correlation between alternative quantitative measurements and is employed to test the accuracy of those measurements. In contrast, the broader concept of “mixed methods” describes the integration of diverse qualitative and quantitative approaches and is employed to build theory. The concepts are developed and demonstrated in relation to a complex field study that evaluated an Israel experience educational program.