PSY 101 Lecture Notes - Lecture 2: Descriptive Statistics, Central Tendency, Standard Deviation
Document Summary
Think about who is going to be in the study and what kind of checks you need to do on them. Example - alcohol test, 21 year old men because of their tolerance and legal drinking age, not women because you would have to pregnancy test them. Group that is subjected to the iv. Ex. group receiving the happy times pill. Similar in every way [by random assignment] to people in the experiment group, just not receiving the treatment. The wait list group symptoms could get worse. Not receiving treatment, facetime vs phone call. Group that receives treatment without active ingredients, a sugar pill". A = good for new stuff, can study in naturally occurring environment. D = very little control, increased bias, cannot determine cause and effect. A = shows whether two phenomena are related, useful when experiment isn"t possible. D = directionality and third variable, can"t determine cause and effect.
