When summarizing literature, what is the time limit to qualify as "recent literature a. past 3 years b. past 5 years c. past 8 years d. past 10 years 8.. no research has been conducted to explore metacognition in students with adhd. which broad topic might assist the researcher in locating literature to review related to the proposed study? a. students with disabilities b. teaching pedagogy c. classroom environment d. adhd medications 9. a research abstract should range from a. 75 to 100 words b. 100 to 125 words c. 150 to 250 words d. 200 to 350 words 10. which word implies a qualitative approach in a purpose statement? a. influence c. impact 11 which word implies a quantitative approach in a purpose statement? a. discover b. explore c. influence 12. which of the following words is not synonymous with research purpose? a. intent b. aim c. problem d. objective 13. which word is an example of an exploratory verb to use in developing qualitative research questions? a. determine b. influence c, impact d. discover