There are several different research approaches, or research designs, that qualitative researchers use. Results varied due to greatly differing approaches. Motivation lies at the core of many behaviorist approaches to psychological treatment. Players can complete objectives using a variety of approaches. There are hundreds of psychotherapy approaches or schools of thought. Several different approaches for classifying leprosy exist. There are several academic approaches to genres. There are similarities between the classification approaches. Retroviruses are one of the mainstays of current gene therapy approaches. Heterodox approaches often embody criticisms of the "mainstream" approaches. She approaches him to confront him. In particular, formula 3 approaches zero when formula 4 approaches infinity. Dorian approaches and courts her and soon proposes marriage. Social disquiet escalates as the day of the literary gala approaches. Dorian approaches and courts her, and soon proposes marriage.