PSY 250 Lecture Notes - Lecture 4: Internal Validity, Likert Scale, Level Of Measurement
Document Summary
Phenomena is a general result that"s been reliably observed in research. If a study doesn"t replicate it could be your results were chance. Most research in the b sciences tests theories of b. Can be modified to account for new data. A model is a precise expl. of some specific phenomena. Multiple theories can exist to explain the same phenomena. Scope- how many diff. phenomena does the theory explain. Functional (purpose of b) vs. mechanical (process, how"s it occur?) Hyp. is specific prediction that should be seen about phenomena that should be seen, if theory is accurate. Measurement- assignment of scores to an indie on some charc. Measuring constructs- variables in psych that are difficult to observe w/ naked eye. B measures are observing ppl in lab/natural settings. External validity- do my results generalize to other ppl and settings? (ability to infer cause and effect) Cats denote some rank order, 1st to last.
