PSYC 2600 Lecture 4: Trait Taxonomies
22 Jan 2019
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Manipulation is key to a causal conclusion. Ex: a comparison of x and not x . Ensure quivalence so that only x differs. Between-persons : different people in different conditions; random. Within-person : same people in both conditions; counterbalance order assignment to conditions of conditions. Multi-study paper on esp in top journal (bem) Simulations say doing all of these can create false positive results ( p < . 05) Small samples make false positives more likely. Goal: to estimate the rare or reproducibility in psychology. About to studies found the original results. Effect sizes were about 50% of original reports. Cognitive psychology appeared more replicable than social psychology. Original result due to chance (was p < . 05) Original result inflated, partly due to questionable practices. Different context, culture, psychosocial situation, or other boundary condition. Ex: discover what the result depends on .
