ch 14: replication and scientific credibility

replicable

describing a study whose results have been reproduced when it has been repeated

direct replication

researchers repeat original study procedure as closely as possible

conceptual replication

researchers explore the same research question but with different procedures

replication-plus-extension

researchers replicate an original experiment and add variables/conditions to test additional things

meta-analysis

way of mathematically averaging the results of all the studies and drawing conclusions from an entire body of evidence

file drawer problem

issue in meta-analysis where true effect size is overestimated because studies finding negligable effects were never published

underreporting null findings

misleading reader about strength of evidence. solution: open materials

HARKing

hypothesizing after the results are known. Misleads reader about strength of evidence. solution: preregistration

p hacking

questionable data analysis techniques eg adding participants after initial analysis, removing outliers. etc. solution: open data

cultural psych

subdiscipline that focuses on how cultural contexts shape the way a person thinks, feels and behaves

lab study

testing in a standard location where environment is held constant for all participants. AKA basic research

field research

takes place in the real world in messier, everyday contexts. AKA applied research