PSY 250 Lecture Notes - Lecture 6: Latin Square, Participation Bias, Caffeine
Document Summary
Comparison is btwn-different groups of subjects, on group for each level if the iv. Impossible to be both sub variable of interest (male & variable) Subjects in each condition have to be native. Problem with btwn subject designs -> creating equivalent groups e. g. , when deception is used. Random assignment: methods of placing participants into different groups. Each subject should have an equal chance of having assigned to any group in the study. Note: random assignment & random selection aren"t the same: matching. Participants matched on some trip (matching variable: work better with small #s of participants, most have good reason to believe that the matching variable could affect the results u, matching is limited. Comparison / within the same group of subjects who will experience all levels of the iv. Eliminates the possibility that diff btwn levels of the iv could be due to individual diff. Remember: variability btwn conditions could be due to.
