PSYC 2015 Lecture Notes - Lecture 12: Nocturnal Enuresis, Quasi, Dependent And Independent Variables
Document Summary
Is an experiment effective o one person at a time: often used in behavior-change situations, eg, stopping bedwetting, quitting smoking, measure dv from baseline period (a) to treatment period (b) and look for change. Limitations: because to control group, cannot attribute change to treatment, other possibilities, maturation, history, testing effects. Another historical event: ethical, does it seem right to remove the benefits from the treatment. Replication of single-case designs: multiple subjects, co(cid:373)ple(cid:454) statistical a(cid:374)al(cid:455)ses a(cid:396)e (cid:374)ot (cid:396)e(cid:395)ui(cid:396)ed o(cid:396) a(cid:374)(cid:455) ti(cid:373)e"s less (cid:373)ea(cid:374)i(cid:374)gful, alternative to reactional research design, change of technique in a natural environment. Why would you choose quasi- experimental design: when you ca(cid:374)"t ethically or practically-manipulate the iv. Pros and cons of quasie experimental design: pros, foundation for work examine causality, study topics you can examine other ways, cons, ca(cid:374)"t trusty establish causality. Quasi- experimental design: one group posttest only, participants sit next to stranger (independent variable) .
