ࡱ> #%"W  bjbjyy l  |f h h h h h h $c b  N NNN"f Nf NN: ,Z  MR1:" Z 0 , .NZ NWITHIN-subject Design (+) Increased statistical power Economy of Participants WITHIN-subject Design (-) Carryover / (order effects) Practice (get better) Fatigue (get worse) May reduce some of these negative effects by increasing the interval between measures but then other confounds may be introduced (and $$ increased) Carryover effects / order effects: (p.176) A situation that can occur in a repeated-measures design when the effects of one level of the manipulation are still present when the D.V. is assessed for another level of the manipulation. A problem associated with within-participant designs in which exposure to one level of the I.V. alters the behavior observed under subsequent levels. Counterbalancing: (pg. 177) Counterbalancing involves arranging the order in which the conditions of a repeated-measures design are experienced, so that each condition of a repeated-measures design are experienced so that each condition occurs equally often in each position. Latin Square Designs (pg. 178) A method of counterbalancing that does not require all possible combinations (n! combinations). A latin square is made as follows: Label the conditions A, B, C, D, Arrange one row of conditions as A, B, L, C, L-1, D, For next row, replace each letter within each column with next letter in the alphabet (repeat for one complete cycle) ABCED BCDAE CDEBA DEACB EABDC Coke, Pepsi, Jolt, ______ ( A B C D ABDC BCAD CDBA DACB Q o  jmHnHu5CJ7PjGHs1]P Q W ] c i $a$ & F & F 8 i o p $a$/ =!"#$% i<@< NormalCJOJQJ_HmH sH tH <A@< Default Paragraph Font7PjGHs1]PQW]ciop0000000 000 0 000000 0 0 0 0 00000000000000 i  _dFs0_d333Mark Van Selst,C:\TEMP\AutoRecovery save of latinsquare.asdMark Van SelstYC:\users\mvselst\coursework\Psychology 18\fall99\lecture #10 latin square\latinsquare.docMark Van SelstOC:\WINDOWS\Application Data\Microsoft\Word\AutoRecovery save of latinsquare.asdMark Van SelstQC:\users\mvselst\coursework\Psych18\spring01\lecture10latinsquare\latinsquare.docF; PeMN& ^`OJQJo(h ^`OJQJo(h   ^ `OJQJo(oh   ^ `OJQJo(h xx^x`OJQJo(h HH^H`OJQJo(oh ^`OJQJo(h ^`OJQJo(h ^`OJQJo(oh ^`OJQJo(F;PeM         @Z`@UnknownG:Times New Roman5Symbol3& :Arial;WingdingsINewCenturySchlbk?5 :Courier New"qhz;& UFz;&) Y20@Mark Van SelstMark Van Selst Oh+'0x   ( 4 @ LX`hpssMark Van Selstark Normal.dotlMark Van Selst3rkMicrosoft Word 9.0@6F@>e/@]/@ ՜.+,0 hp  San Jose State Universityi 2  Title  !$Root Entry FMR1&1Table WordDocumentSummaryInformation(DocumentSummaryInformation8CompObjjObjectPoolMR1MR1  FMicrosoft Word Document MSWordDocWord.Document.89q