Psychology Module 6 - Correlation and Experimentation

Correianen & Experimermanen Cormianan a mearvis of the extent to which to which two variabier change Together (how weis either varianie predicts ine orner) carxeianen coefficient a rianical index of the relatoninip between two variabes Laticrpion a graphed civirer of dels mareach represent wo variables the slope of the points suggests the direction of ine relationship berween the two variasies the amount of scarter iuggests inestrengin of the corresation a correlation is paritise if two variables rite or tan roarrmer acorrelation is neganve vatlavier resale inverrent acorrelation coeffeciens (which can range from 1 to 1) veveals the exrent D which I ininas reinre. The clorer the correlation mezcuregers to or the -correlations cavsanon 3 posrise cause-effect relatoninipe Lowieir esteem Covidsale depression 2. depression could caves low selt esteem distressing events/gencies Covides lowrelf esteem ANP depression -zawory correlations! the percepmonora relanonship where none exist remember! -when we believe there is a relatoninip, wearelikely to notice and recall instancas that confirm our beleif confirmation bias? -when we nonce random concedences, we may forger thar mey are random & imsread see inem as coorclared 4-3: Experimentanon experiment a research merned rhat manipulater variables is observe theetfecton some benavior or mental process arandom artianmens spire test subject into expermeater and soned groups し sornar the 2 groups cange compared to besser analyze me effecior the treatment the group exposed g le , inc group exposed - is the groups difier, the treatment nad an arfect 77 Association dece bet prove caulanon; correlatonindicares ME POSTIDLIity of a cavie-effect relation-inip busades nor prove one -3: Experimentanon (continued) unlike correlanona Itudies which uncover naturalny occurring relanonships, an experiment manipulares a vanasie ro determine its effect double blind procedure: an experimental procedure in which neither the restarin participants of staff know who has recieved the rearment or placebo ५, DIALENO ETFALT,Experimental results caused by expectations alone, and effect on benovior cavied by the administranon of an iners substance or condition whichine recipient assumes is anacrive agent variabies anything inarconvary 11ndependent variable the experimental factor tharis manipuraret, the variable who's expect is being studied 11 can vary independenring of orner factors 2. contunding väliarie a factor other than the independent variable thar might alter the results 5. dependent variable: the variable inat may change in response to manipulations of the independent variabie It depends on whartakes placeduring the experiment the gaat eran experiment is validity the essent to which a test or experiment measures or predicts what ITIS Jupposeel to Descriptive 100bserve record benavior carestudies naruralishe observariens surveys 6.5-only 1 parricipant No-no manipulation S-quickG cheap uncontrolled variabies mean smusegette cannot be determined, single care maybe misleading Hoer nerspecity cause seffect Correianona Experiment to derece naturally Occurring reianen-ships; asses now weil variabl predict each other o explore cause and effect collect dara on 2 varia bleline man manipulare I variables; Vierandom assignment con rolled works wlater et Maraj can beured when experiment iinravanablе specifies causes herreer; vari noies are sometimes not avallale; may norgenerals 20, norethical te Manipviare so me variables