NURS 3205 Chapter Notes - Chapter 9: Experiment, Statistical Conclusion Validity, Longitudinal Study
Document Summary
Key features of quantitative research design: interventions: key questions. What specific design will be used: broad design options. Key features of quantitative research design: comparisons: key question, some design options. Within-subjects design: same people are compared at different times or under different conditions. Between-subjects design: different people are compared (e. g. , men and women). Other key features of quantitative research design: control over confounding variables. Randomization (cid:894)(cid:374)o (cid:271)ias a(cid:271)out (cid:449)ho"s i(cid:374) (cid:449)hat g(cid:396)oup(cid:895) heterogeneity groups to compare. Crossover (control condition becomes intervention group, individuals tested in both situations, compare outcomes) Homogeneity (keep a variable constant: age, gender) Matching (match two groups on major characteristics: age, gender, disease) problematic because impossible to match all the characteristics. Statistical control (statistically remove the effect one factor has an impact on the outcome: age causes conflicting piece of data, pull this out of the analysis. Look at groups without the interference of age: masking/blinding.
