Chapter 4 review questions PDF

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Cha pt er4 : I nt r ot oHypot he s i sTe s t i ng No t e : S omepr obl e msr e qui r et henor ma lc ur vet a bl e ,( Ta bl eA– 1 ) .

Re vi e w Que s t i ons

1 )Whi c hoft hef ol l o wi ngs t a t e me nt si st hemos ta c c ur a t ede s c r i pt i onofhypot he s i st e s t i ng ? A)I ti sac e nt r a lt he mei nt hes t a t i s t i c a la na l ys i sofvi r t ua l l ya l lps y c hol ogyr e s e a r c h. B)I ti sas i mpl epa r tofs t a t i s t i c st ha tonl ya ppl i e st ot hr e es t a t i s t i c a lpr oc e dur e s . C)I ti saf a i r l yunc ommonwa yofus i ngs t a t i s t i c s . D)I ti saki ndofs t a t i s t i c a lpr oc e dur et ha ti sus e dma i nl ya spa r tofde s c r i pt i ves t a t i s t i c s . Ans we r :A 2 )How woul daps yc hol ogi s tt e s tt hehypot he s i st ha tane ws t r e s s r e duc t i onpr ogr a mr e a l l ywor ks ? A)Tr yt or e j e c tt hehypot he s i st ha ti tdoe swor k. B)Tr yt oa c c e ptt hehypot he s i st ha ti tdoe swor k. C)Tr yt or e j e c tt hehypot he s i st ha ti tdoe snotwor k. D)Tr yt oac c e ptt hehypot he s i st ha ti tdoe snotwor k. Ans we r :C 3 )Whe naps yc hol ogi s ts e t supahypot he s i st e s t i ngpr obl e m, t hei nt e nti st o A)de t e r mi newhe t he rt hepr e di c t e dbe ha vi orwi l loc c ur . B)de t e r mi newhe t he rt heoppos i t eoft hepr e di c t e dbe ha vi orwi l loc c ur . C)t e s tf ort woe ffe c t s , t hepr e di c t e dbe ha vi ora ndt heoppos i t ebe ha vi or . D)t e s tt hedi ffe r e nc ebe t we e nt wopopul a t i ons , r e ga r dl e s soft hepr e di c t e dbe ha vi or . Ans we r :B 4 )I faps yc hol ogi s tt e s t swhe t he rane wt e a c hi ngme t hodi smor ee ffe c t i vet hant heol done , t he r e s e a r c hhypot he s i si st ha t A)t hene wt e a c hi ngme t hodi smor ee ffe c t i vet ha nt heol dt e a c hi ngme t hod. B)t heol dt e a c hi ngme t hodi smor ee ffe c t i vet ha nt hene wt e a c hi ngme t hod. C)t he r ei snodi ffe r e nc ei ne ffe c t i ve ne s soft heol da ndne wt e a c hi ngme t hods . D)t he r ei sadi ffe r e nc ei ne ffe c t i ve ne s sbe t we e nt het wome t hods , butnopr e di c t i oni smade . Ans we r :A 5 )I faps yc hol ogi s tt e s t swhe t he rt he r ei sa nydi ffe r e nc ebe t we e nhow f a s tpe opl ewor ki nt he mor ni ngve r s ushow f a s tt he ywor ki nt hee v e ni ng, t henul lhypot he s i si st ha t A)pe opl ewhowor ki nt hemor ni ngwor kf a s t e r . B)pe opl ewhowor ka tni ghtwor kf a s t e r . C)t he r ei sadi ffe r e nc ei nwor ke rs pe e d, butnopr e di c t i oni sma de . D)t he r ei snodi ffe r e nc ei nt hes pe e da twhi c hpe opl ewor k. Ans we r :D

6 )Aps yc hol ogi s twhos t a t e st hehypot he s i st ha tt he r ewi l lbenodi ffe r e nc ebe t we e nane wa ppr oa c h t ot he r a pya ndt hes t anda r da ppr oa c hi ss t a t i nga A)c ompa r i s onhypot he s i s . B)r e s e a r c hhypot he s i s . C)nul lhypot he s i s . 1

D)di ffe r e nt i a lhypot he s i s . Ans we r :C 7 )Whe nps yc hol ogi s t ss t udyas a mpl et os e ei fi tr e pr e s e nt sapopul a t i on( c a l l e dPopul a t i on1 )t ha ti s di ffe r e ntf r om aknownpopul a t i on( c a l l e dPopul a t i on2 ) , t hec ompa r i s ondi s t r i but i oni s A)t hes a mea st hedi s t r i but i onofPopul a t i on1 . B)t hes a mea st hedi s t r i but i onofPopul a t i on2 . C)ar e c t a ngul a rdi s t r i but i onwi t ht hes a meme a na nds t a nda r dde vi a t i ona sPopul a t i on1 . D)ar e c t a ngul a rdi s t r i but i onwi t ht hes a meme a na nds t a nda r dde vi a t i ona sPopul a t i on2 . Ans we r :B 8 )Thedi s t r i but i ont ha tr e pr e s e nt st hes i t ua t i oni nwhi c ht henul lhypot he s i si st r uei s A)t hec ompa r i s ondi s t r i but i on. B)t hes a mpl edi s t r i but i on. C)at wot a i l e ddi s t r i but i on. D)aone t ai l e ddi s t r i but i on. Ans we r :A Thei t emsbe l ow ( #9–1 1 )a r ebas e dont hef ol l owi ngs c e na r i o. Ahe al t hps yc hol ogi s ti si nt e r e s t e di nt hee ffe c t i venes sofane we x e r c i s eonr e duc i ngt her at eof he a r ta t t a c ksbe c a us et hee x e r c i s er e qui r e snoe qui pme ntand,t her e f or e ,c a nbedonewi t houtc os t . 9 )Wha ti st her e s e a r c hhypot he s i s ? A)Pe opl ewi l lpa r t i c i pa t ebe c a us ei tdoe snotc os tt he ma nymone y . B)Thee x e r c i s ewi l lma keadi ffe r e nc ei nt her a t eofhe ar ta t t a c ks . C)Thee x e r c i s ewi l lr e duc et her a t eofhe a r ta t t a c ks . D)Thee x e r c i s ewi l li nc r e a s et her a t eofhe a r ta t t a c ks . Ans we r :C 1 0 ) Wha ti st henul lhypot he s i s ? A)Pe opl ewi l lnotpa r t i c i pa t ebe c a us ei tdoe snotc os tt he ma nymone y . B)Thee x e r c i s ewi l lma kenodi ffe r e nc ei nt her a t eofhe a r ta t t ac ks . C)Thee x e r c i s ewi l lma kenodi ffe r e nc eorwi l lr e duc et her a t eofhe a r ta t t a c ks . D)Thee x e r c i s ewi l lma kenodi ffe r e nc eorwi l li nc r e as et her a t eofhe a r ta t t ac ks . Ans we r :D

1 1 ) Wha ti st hec ompa r i s ondi s t r i but i on? A)t hedi s t r i but i onofpe opl ewhopa r t i c i pa t ei nt hee x e r c i s epr ogr a m B)t hedi s t r i but i onofpe opl ewhodonotpa r t i c i pa t ei nt hee x e r c i s epr ogr am C)t hedi s t r i but i onofpe opl ewhoha vehe a r ta t t a c ks D)t hedi s t r i but i onofpe opl ewhodonotha vehe a r ta t t a c ks Ans we r :B 1 2 ) The" c ut offs a mpl es c or eont hec ompa r i s ondi s t r i but i on"i st hepoi nta twhi c h A)i ft henul lhypot he s i si st r ue ,ar e s ul tt hi se x t r e mei sunl i ke l y . B)i ft her e s e a r c hhypot he s i si st r ue , ar e s ul tt hi se x t r e mei sunl i ke l y . 2

C)t hec ompa r i s ondi s t r i but i one nds . D)t henul lhypot he s i si sa c c e pt e di ft her e s ul ti smor ee x t r e me . Ans we r :A 1 3 ) Whe naps yc hol ogi s tr e j e c t st henul lhypot he s i sa tt he. 05l e v e l , t her e s ul t sofas t udyi ndi c a t et ha t A)t he r ei sl e s st ha na5 %c hanc eofge t t i ngs uc ha ne xt r e mer e s ul ti ft henul lhypot he s i si st r ue . B)t he r ei smor et hana5 %c ha nc eofge t t i ngs uc ha ne xt r e mer e s ul ti ft henul lhypot he s i si st r ue . C)t he r ei sa5 %c ha nc et ha tt her e s e a r c hhypot he s i si st r ue . D)t he r ei sa9 5 %c ha nc et ha tt her e s e a r c hhypot he s i si st r ue . Ans we r :A 1 4 ) Re j e c t i ngt henul lhypot he s i sa tt he. 0 5l e ve lme a nst ha t A)t he r ei smor et ha na5% c hanc eofge t t i ngs uc ha ne xt r e mer e s ul ti ft henul lhypot he s i si st r ue . B)t he r ei smor et hana9 5 %c hanc eofge t t i ngs uc hane xt r e mer e s ul ti ft her e s e ar c hhypot he s i si s t r ue . C)t he r ei sl e s st ha na5 %c ha nc eofge t t i ngs uc ha ne xt r e mer e s ul ti ft henul lhypot he s i si st r ue . D)t he r ei sl e s st ha na9 5 %c ha nc eofge t t i ngs uc hane xt r e mer e s ul ti ft her e s e a r c hhypot he s i si s t r ue . Ans we r :C 1 5 ) Thec onve nt i onall e ve l sofs i gni fic a nc ei nhypot he s i st e s t i ngi nps yc hol ogya r e A). 0 0 1a nd. 0 1 B). 0 1a nd. 0 5 C). 1 0 , . 2 0 , a nd. 3 0 D). 0 5 ,. 2 5 ,a nd. 9 5 Ans we r :B 1 6 ) Aps yc hol ogi s twhor e j e c t st henul lhypot he s i s —be c aus et hepr oba bi l i t yofobt a i ni ngt her e s ul t si f t henul lhypot he s i si st r uei sl e s st ha n5 %—woul de xpr e s st hi sfindi ngi ns ymbol sa s A)p=5 % B)p. 0 5 C)p...