Tgp chl KHOA HQC OHSP TP HCM 86 34 ndm 2012 PHAN TICH VA DANH GIA BAI TRAC NGHIfM KHACH QUAN M 6 N H 6 A HCTU CO d TRU d̂NG DAI HQC Y DU''''OC TP H 6 CHI MINH HUVNH THI MINH HANG* T6M TAT Nghien cuu ndy,[.]
Trang 1Tgp chl KHOA HQC OHSP TP HCM 86 34 ndm 2012
PHAN TICH VA DANH GIA BAI T R A C NGHIfM K H A C H QUAN M 6 N H 6 A HCTU CO
d TRU^dNG DAI HQC Y DU'OC TP H 6 CHI MINH
HUVNH THI MINH HANG* T6M TAT
Nghien cuu ndy, dugc tiin hdnh theo phuang phdp nghien cuu dinh lugng nhdm xdc dinh nhitng tham sd cita mpt bdi trdc nghipm khdch quan nhu dp khd, dp phdn cdch, tinh tin cgy, tinh gid tri di ddnh gid kit qud hqc tpp mdn Hda hiru ca tgi Tru&ng Dgi hqc Y
Duge TP Hd Chi Minh Mdu nghiin eint Id 185 sinh vien vdi 58 nam vd 127 nir
Tu'khda: phan tich, ddnh gid, trie nghifm khdch quan, hda hihi ca
ABSTRACT
Analyzing an objective test of Organic Chemistry at Ho Chi Minh City University
of Medicine and Pharmacy
A quantitative research is carried out to define the parameters of an objective test such as difftculty, index of discrimination, reliability and validity Hereby, it is used to evaluate objectively the results of students learning Organic Chemistry at Ho Chi Minh city University of Medicine and Pharmacy The sample is 185 students including 58 male
and 127female students
Keywords: analyze, evaluate, objective test Organic Chemistry
1 Md dau
Ngdy nay, do sy phdt triin ciia khoa
hgc kT thudt vd cdc diiu kifn xd hgi ddi
hdi nhd tmdng phdi khdng ngimg hodn
thifn qud trinh gido dye vd ddo tgo dk ddp
img yeu ciu vl con ngudi vd nguon nhdn
lyc Id nhdn t l quyit djnh sy phdt friln
ciia dit nudc trong thdi ki cdng nghifp
hda, hifn dgi hda
Cimg vdi sy doi mdi ciia dit nudc,
gido dye dgi hgc Vift Nam cung dang doi
mdi theo hudng chuin hda, hifn dgi hda
vd da dgng hda Sy ddi mdi ndy ddi hdi
tiin hdnh mgt cdch dong bg, trdn tit cd
cdc khdu ciia qud trinh ddo tgo: myc tidu,
nfi dung, chuang trhih, phuong phdp gidng
day, kidm tra ddnh gid, ca sd v$t chit
ThS, Tm^mg Ogi hpc Y Dugc TPHCM
Kiim tra danh gid Id khdu quan trgng cua qud trinh dgy hgc, cd tde dgng mgnh vd hifu qud din sy thay d6i trong quy trinh ddo tgo d bgc dgi hgc Khi kiim tra ddnh gid dugc xdy dyng trdn ca sd khoa hgc, ddm bdo cdc nguyen tic nhit djnh thi sd kdo theo sy thay ddi vl chit
vd lugng cua chucmg trinh ddo tgo, giao trinh, tdi lifu giang dgy, phuong phdp dgy hgc
Kiim tra ddnh gid d dgi hgc hifn nay dang cd xu hudng "Dgy gi thi niy", din den hifn tugng ngudi dgy cit xen chuong trinh, it ddi mdi ngi dung, phuong phdp gidng dgy; cdn ngudi hpc thi hgc doi phd, "hgc tu", hgc Ifch; vide kiem tra ddnh gid kit qud hgc tap cua smh vidn thudng thyc hifn theo phuong
phdp lugn dk trdn cac ki kiim tra, thi hpc
Trang 2ki, thi tdt nghifp Phuang phdp ddnh gid
nay cd nhieu hgn chl nhu: so cdu hdi
trong mgt bdi kiim tra hodc bdi thi tuomg
dli it, khdng bao trum toan bg ngi dung
mdn hgc ddn din vifc sinh vidn "hgc tii",
gido vidn chim bdi thi mang tinh chit chii
quan vi cd thd ty do cho diem cdc cdu trd
ldi theo xu hudng ridng ciia minh, khdng
thing nhit vdi nhau ndn khdng khdch
quan vd cd the cd nhflmg bidu hifn tidu
cyc nhu qua kbit khe ho^c ndng dilm ,
do dd kit qud kiim tra ddnh gid chua
phan dnh diing trinh dg thgt sy ciia sinh
vidn vd tgo ra sy khdng cdng bing trong
gido dye
Thdm vdo dd, dp lyc vl so lugng
sinh vidn ngdy mgt tdng, ddi hdi cdn phdi
CO sy thay ddi vl khdu kiim tra ddnh gid
chit lugng hgc tap Vifc ddnh gid sinh
vidn dd trd thdnh nhu cdu mang tinh cap
bach, ddc bift trong vifc cdi tien vd hodn
thifn kT thudt trong kiim tra, ddnh gid
Trong nhflmg ndm gin ddy, vifc
thay doi cdch thiic kiim tra, ddnh gid
trong hgc tap, thi cii vd gidng dgy dugc
quan tdm din nhidu nhu vifc tuyin sinh
dgi hgc bing phuong phdp trie nghifm,
vifc thi cu cdc mdn hgc d cdc cdp hgc
ciing ddn chuydn sang hinh thiic trdc
nghidm
Nghidn cihi ndy nhdm xdc dinh
nhimg tidu chi cua mdt bdi trie nghifm
khdch quan nhu: do khd, dg phdn cdch,
tinh tin cdy, tinh gid tri dl ddnh gid kit
qua hgc tap mdn Hda hflru co tgi Dgi hgc
Y Dugc TP Hd Chi Minh Doi tugng
nghien cdu Id cdc thdng s6 vl dg khd, do
phan each, tinh tin cay, tinh gid trj cua
bai thi trie nghifm khdch quan siir dyng
hgc Y Dugc TP Hi Chi Minh Doi tugng thyc nghifm Id sinh vidn hf chinh quy khda 2003 - 2008 bgc mdn Hda huru eo tgi Khoa Dugc - Dgi hgc Y Dugc TP Hd Chi Minh
Trong ITnh vyc gido dye, thudng
diing chu "trdc nghipm thdnh qud hqc tap" hay "trdc nghipm thdnh tieh" Trong trudng hgc, tir "trdc nghipm" dugc dimg
nhu Id mgt hinh thiic kiim tra, ddnh gid hgc sinh Tgi Vift Nam, cdc tdi lifu
thudng ghi "trdc nghiem khdch quan",
khdng phdi hiiu theo nghTa ddi lgp vdi mgt do ludng chu quan ndo, md ndn hiiu
Id hinh thirc kiim tra ndy cd tinh khdch quan cao hom each kiim tra, ddnh gia bing lugn dl ching hgn
Cdc dilm sd thu thdp dugc tir mgt bdi trie nghifm thdnh tich cd thi cung cip hai logi thdng tin:
Logi thiir nhit la miirc dg ngudi hgc thyc hifn dugc tidu chi dd dugc in dinh, khdng cin bilt ngudi iy ldm gidi hom hay kem horn nhflmg ngudi khdc
- Logi thir hai Id sy xip hgng tuong ddi cua cdc cd nhdn lidn quan din mirc do thyc hifn cua hg vl bdi trie nghifm dd ra
Sy khdc bift giflra hai logi thdng tin ndy Id d logi tidu chuin ndo dugc siir dyng
dk tham chiiu Nhu vgy, logi trie nghifm
md ngudi ta ggi Id "trdc nghiim chudn mgc" tuy thufc vdo tidu chuin chit lugng tuong ddi, cdn "trdc nghiim tieu chr tuy
thugc vdo tidu chuin chit lugng tuyft ddi
[3]-Vifc kiim tra, ddnh gid kdt qua hgc tap ciia sinh vidn trong timg mdn hgc la lam rd tinh hinh ITnh hdi kiln thurc, sy thdnh thgo vl kT ndng vd trinh do phdt
Trang 3Tgp chl KHOA HQC OHSP TP HCM 86 34 ndm 2012
triin lu duy (qud trinh hinh thdnh khdi
nifm, khd ndng phdn tich, tdng hgp, hf
thong hda, khdi qudt hda kiln thirc.,,)
trong vifc nim kiln thiic ciia sinh vidn,
Thdng qua kllm tra ddnh gia, gido vidn
ty danh gid vifc giang dgy vd sinh vien
nhdn bilt, ty ddnh gid vifc hgc tap ciia
minh, Gido vidn se thiy dugc nhflng
thanh cdng va nhflmg vin dl cin dugc nit
kinh nghifm trong gidng dgy ngi dung
chuydn mdn md minh phy trdch dl tir dd
djnh ra dugc nhflmg bifn phdp su phgm
thich hgp nhim ndng cao chit lugng dgy
-hgc
Kidm tra ddnh gid cflng cd anh
hudng rit ldn din vifc hgc tap bg mdn
ciia sinh vidn Nlu cdc cdu hdi kiim tra
chi nhim vdo vifc kiim tra tri nhd thi
\ mt 9
didu dd se ddn ddn mgt thdi quen bugc
sinh vidn phdi hgc thugc ldng Cdn nlu
cdc cdu hdi kidm tra lai chi don thuin
nhim vdo vifc kiim tra kiln thirc ma coi
nhe yeu ciu van dyng kT ndng thi cung se
lam cho sinh vidn khdng chii y din vifc
rdn luyfn kT ndng cin thiit cua timg bg
mdn
Vi vgy, cd thi ndi kiim tra vd ddnh
gid la khdu khdng thi thiiu dugc ciia qud
trinh dgy hgc Id mgt bifn phdp quan
trgng dk ndng cao chit lugng dgy - hgc
bg mdn Hogt dgng kiim tra, ddnh gid kit
qud hgc tap ciia sinh vidn phdi dugc tien
hdnh theo kl hogch, cd hf thong, ddnh
gid tmdc, trong vd sau khi hgc mgt phin
cua chucmg trinh, kit hgp vifc theo ddi
thudng xuydn vdi kiim tra, ddnh gid djnh
ki vd ddnh gid vdo cuoi ki, cudi ndm, cu6i
khda Sd lin kiim tra phdi dii miic dl cd
the ddnh gid chinh xdc (thudng theo quy
djnh vd chi tidu chung do Bg Gido dye va
Ddo tgo dk ra)
Vifc kiim tra, ddnh gid kit qud hpc t$p cua sinh vidn phdi bao dam tinh khdch quan (tdi miic toi da cd thi), vi vgy phdi tgo diiu kifn cho sinh vidn phdt huy hit khd ndng, trinh dd ciia bdn thdn De Idm dugc vifc dd cin phdi cd nhflmg bidn phdp ngdn chdn nhflmg hdnh vi thiiu tmng thyc trong thi cii nhu nhin bdi bgn, xem tdi lifu, ldm hg bdi [1]
Vifc td chiic kiim tra, ddnh gid kit qud hgc tap cua sinh vidn cin van dyng thdnh tyu ciia nhflmg ly thuyit mdi, sii
dyng nbilu phuang phap khdc nhau dk
ddnh gid vifc hgc cua sinh vien, du lifu ddnh gid sd dugc su dyng dl phdt huy vifc gidng dgy vd cdi tiin chit lugng chuong trinh ddo tgo
2 Phuong phdp nghien cvu
Nghidn ciiru nay dugc thyc hidn theo cdc phuang phdp:
- Phuang phdp nghidn cihi tdi lieu thill lgp ca sd ly lugn cho vifc nghien ciiru
Phuang phdp didu tra bing philu hdi
Phuomg phdp thdng ke iing dyng h-ong nghidn cim khoa hgc
Bk thyc hifn vifc phdn tich vd ddnh
gid bdi h-ic nghifm khdch quan mdn Hoa hOn ca, tde gid da sii dyng phdi hgp hai cdng cy phdn tich dfl" lifu Id chuong trinh phdn tich thong kd chuyen dyng SPSS for Windows va chuomg trinh xiir ly bang tinh difn tiir Microsoft Excel trong vifc xiir ly kit qud thuc nghifm
3 Ket qud nghidn cihi
Trang 4Nghidn ciiu nay dugc liln hdnh Qua khdo sat bai thi trie nghifm khdch theo phuang phap nghien ciiu djnh lugng quan mdn Hda hflu co cua sinh vidn khoa dya trdn kit qua hgc tap mdn Hda hflm co Dugc hf chinh quy khda 20Q3 2008, tac tai Dai hgc Y Dugc TP Ho Chi Minh gia dd rut ra dugc nhflmg kit qua nhu sau:
Bdng 1 Kit qud phdn tieh tren todn bdi trdc nghiim
Cdc gid tri thyc nghifm
Sd cau trie nghifm
Sd sinh vidn lam trdc nghidm Didm trung binh Iy thuyit Didm trung binh todn bdi
Do Ifch tidu chuan
Hf sd tin cdy
Ket qua
40
185
24 23,23 4,068 0,6217
9 f
Qua kdt qud ciia bdng 1 cho thay:
Bdi trie nghifm Id vira siic so vdi trinh dg ciia sinh vidn
Hf sd tin cay ciia bdi trie nghifm cao vi sd sinh vidn ciia Idp la 185
Vife phdn tich cdc edu trie nghifm duge tiin hdnh theo phuomg phap phan tich
dp khd cua cdu, phuang phdp phan tich dg phdn each eiia cdu vd phuomg phap thim djnh cdc mdi nhu
Bdng 2 Kit qud phdn tich dp khd eua cdc cdu trdc nghiim
Cau
Cl
C2
C3
C4
C5
C6
C7
C8
C9
CIO
Do khd
•
0,99 0,84 0,47 0,41 0,20 0,85 0,81 0,95 0,89 0,88
Cau Cll C12 C13 C14 C15 C16 C17 C18 C19 C20
Dgkho 0,92 0,22 0,55 0,20 0,34 0,84 0,92 0,63 0,58 0,80
Cau C21 C22 C23 C24 C25 C26 C27 C28 C29 C30
Do kho
•
0,76 0,32 0,30 0,82 0,66 0,11 0,14 0,04 0,22 0,37
Cau C31 C32 C33 C34 C35 C36 C37 C38 C39 C40
Dgkho 0,90 0,94 0,15 0,51 0,75 0,37 0,51 0,51 0,81 0,75 Qua kit qua phdn tich do khd cua
cac cdu trie nghifm khdch quan nbilu
lya chgn (logi cdu cd 5 lya chgn) vd so
sanh cdc chi sd vl do khd ndy vdi do khd
vira phdi (vdi cdu trie nghifm cd 5 lya
chpn la 0,60) cua timg cdu trie nghifm
tuomg ling, tac gid nhdn thiy bdi thi trdc nghifm khdch quan mdn Hda huru co cd:
- 19 cdu d miic dp dd Id: Cl, C2, C6, C7, C8, C9, CIO, C l l , C16, C17, C20, C21, C24, C25, C31, C32, C35, C39, C40
Trang 5Tgp chl KHOA HQC OHSP TP HCM 86 34 ndm 2012
3 cdu d miirc dg vira sire Id: C13,
C18,C19
- 18 cdu d miic df khd Id: C3, C4,
C5, C12, C14, C15, C22, C23, C26, C27,
C28, C29, C30, C33, C34, C36, C37,
C38,
D I cd thi dua ra kit lu^n sau khi
tinh dugc df phdn cdch cua mgt cdu trie
nghifm, la cdn cii vdo thang ddnh gid dg
phdn cdch D sau day:
Bdng 3 Kit qud phdn tieh dg phdn cdch eua ede edu trdc nghipm
- D ^ 40 : cdu trie nghifm cd df phdn cdch rit tit
- 30 ^ D ^ 39 : cdu trie nghifm co
df phdn cdch khd tot
- 20 < D £ 29 : cdu trie nghifm c6
df phdn cdch tgm dugc
- D ^ 19 : cdu trie nghifm cd df phdn cdch kdm
Cdu
Cl
C2
C3
C4
C5
C6
C7
C8
C9
CIO
Df phdn cdch
0,10 0,33 0,47 0,37 0,30 0,33 0,26 0,08 0,15 0,13
Cau
Cll C12 C13 C14 C15 C16 C17 C18 C19 C20
Df phdn
cdch 0,17 0,13 0,17 0,22 0,39 0,29 0,22 0,39 0,39 0,41
Cdu
C21 C22 C23 C24 C25 C26 C27 C28 C29 C30
Df
phan cdch
0,22 0,49 0,25 0,23 0,43 0,06 0,20 0,30
-0,17
0,31
Cdu
C31 C32 C33 C34 C35 C36 C37 C38
C39
C40
Df phdn cdch
0,30 0,30 0,26 0,30 0,26 0,22 0,08 0,16 0,30 0,22 Qua ket qua phdn tich df phdn cdch
cua cdc cdu trie nghifm vd so sdnh cdc
chi s6 vl dg phdn cdch ndy vdi thang
ddnh gid df phdn cdch ciia cdu trie
nghifm, tde gid nhgn thiy bdi thi trie
nghifm khdch quan mdn Hda hCiu ca cd:
- 4 cdu cd df phdn cdch rit tit Id: C3,
C20, C22, C25
- 13 cdu cd dg phdn cdch khd t6t Id:
C2, C4, C5, C6, C15, C18, C19, C28,
C30,C31,C32,C34,C39
- 12 cdu cd df phdn cdch tgm dugc:
C7, C14, C16, C17, C21, C23, C24, C27,
C33, C35, C36, C40
- 11 cdu cd dO phdn cdch kem Id: Cl, C8, C9, CIO, Cll, C12, C13, C26, C29, C37, C38
Ngodi vifc phdn tich dg khd vd df phdn cdch cua cdc cdu trie nghifm, de chgn dugc cdu trie nghifm tot, tde gia thyc hifn phdn tich cdc cdu gdy nbilu hay m6i nhii cua cdu trie nghifm tuong umg dya h-en tin s6 ddp umg cho khd ndng lya chgn dung, sai cua sinh vidn trdn timg cdu gdy nhiiu
Gid dinh:
- NIU S6 sinh vidn trong nhdm c6
dilm s6 cao ldm diing nhiiu ban s6 sinh
Trang 6vidn trong nhdm cd dilm sd thip: moi
nhd tdt
NIU sd sinh vien trong nhdm cd
dilm sd cao lam sai nbilu hom sd sinh
vidn trong nhdm cd dilm so thip: moi
nhii khdng tdt
Dd cd thi dua ra kit ludn sau khi
tinh dugc tin sd dap iing cho khd ndng
lya chgn diing, sai cua sinh vidn trdn mgt
cau trdc nghifm, ta cdn cii vdo thang
danh gid vl do gay nhidu F sau ddy:
9 \ f
Bang 4 Kit qud ddnh gid mdi nhu cua ede edu trdc nghifm
cdu lya chgn cd do gdy edu lya chgn cd df gay
- F > 5 nhidu rit tot
F = 3 ^4 nhidu khd tot,
- F = 1 H- 2 : cdu lya chgn cd do gdy nhidu trung binh,
- F < 0 : cdu lya chgn cd do gdy nhidu kdm
Cau
Cl
C2
C3
C4
C5
C6
C7
C8
C9
CIO
Cll
C12
C13
C14
C15
C16
C17
C18
C19
C20
C21
C22
C23
€24
Moi nhu
A Trung binh
Trung binh
Ddpdn
Khd tdt
Ddpdn
Trung binh
Ddpdn
Trung binh
Ddpdn
Trung binh
Kem
Tnmg binh
Trung binh
Tmng binh
Rat tdt
Trung binh
Ddpdn
Tnmg binh
Rit tdt
Ddpdn
Rit tdt
Khd tdt
Kem
Kem
B Kem Rdt tdt Rat tdt Ddpdn Khd tdt Rdt tdt Rdt tdt Ddpdn Khd tdt Kem Rdt tdt Ddpdn Kem Rat tdt Rdt tdt Rit tdt Tmng binh Rdt tdt Ddpdn Rdt tdt Kem Ddpdn Kdm Khd tdt
C Ddpdn Trung binh Rdt tdt Tmng binh Rdt tdt Tmng binh Tmng binh Kdm
Kem Ddpdn Ddpdn Kem Rdt tdt Rdt tdt Ddpdn Khd tdt Tmng binh Ddpdn Rit tdt Tmng binh Ddpdn Rdt tdt Ddpdn Rit tdt
D Kem Khd tot Rdt tdt Rdt tdt Kdm Ddpdn Kem Kem Tmng binh Kha tdt Kdm Rdt tdt Rat tdt Ddpdn Kha tdt Ddpdn Kem Rit tot Tmng binh Rdt tdt Kem Khd tdt Rdt tdt Ddpdn
E Kem Dap dn Khd tdt Rdt tdt Kdm Rdt tdt Khd tdt Kem Kem Kem Kem Kdm Ddpdn Kem Kem Kem Khd tdt Khd tdt Tmng binh Tmng binh Khd tdt Rdt tdt Rdt tdt Trung binh
Trang 7Tgp chl KHOA HQC OHSP TP HCM 86 34 ndm 2012
C25
C26
C27
C28
C29
C30
C31
C32
C33
C34
C35
C36
C37
C38
C39
C40
Trung binh
Rat tdt
Ddpdn
Ddpdn
Ddpdn
Rit tdt
Kem
Kdm
Kem
Rat tdt
Kha tot
Kha tot
Kha tdt
Kem
Trung binh
Kem
Khd tdt Kdm Rat tit Khd lot Kem Ddpdn Kha tdt Kem Trung binh Ddp dn Kdm Kem Kdm Kem Tmng binh Khd tdt
Rat tit Kdm Kdm Trung binh Kdm
Rit tot Ddpdn Kdm Kdm Khd tot Rit tdt Trung binh Ddpdn Ddpdn Khd tot Kdm
Ddpdn Ddpdn Tmng binh Rat tdt Kdm Tmng binh Rat tdt Ddpdn Ddpdn Kdm Kdm Rdt tdt Kem Rdt tdt Rdt tdt Rdt tdt
Rat tot Kdm Kdm Kem Kdm Khd tdt Tmng binh Rdt tdt Rat tdt Rdt tdt Ddpdn Ddpdn Khd tdt Rdt tdt Ddpdn
ii
t
Dap an Trong nghien ciiu nay, tac gid dd
khao sdt bdi thi trie nghidm ciia sinh vidn
khoa Dugc he chinh quy khda 2003
2008 vdi 40 cau trie nghifm de do ludng
miirc do nhdn thiic cua sinh vidn vl ly
thuyit Hda hflu co, Cdc myc tidu nhdn
thiic cua mdn Hda hflru co gdm 4 phgm
trii ldn vdi cdc miic dg do myc tidu nhdn
thiire dugc djnh nghTa tir thip din cao
theo thang do nhu sau:
Bdng 5 Phdn tieh mgc tieu vd
.-I
LBidt,
' 2 Hiiu,
9
3.Apdyng,
4 Phdn tich - Tdng hgp - Ddnh gia Thang do nay dugc xdy dyng dya trdn ca sd ly thuyit vl nguyen tic phan logi cdc myc tidu gido dye trong ITnh vuc nhgn thiic cua tac gid Benjamin S Bloom [51
-J
nqi dung eua cdc edu trdc nghifm
Cau
Cl
C2
C3
C4
C5
C6
C7
Nfi dung
Hidu ling cdm iing
Tinh chit cua cdc lidn kit a vd lidn kit n
Khdi nifm acid base trong hda hflu co
Cdu tnic difn tir ciia carbon vd lidn kit trong hgp chit
hflu CO
Cdc hifu umg difn tii trong hgp chit hflru ca
Cdc hifu ling difn tii trong hgp chit hflru ca
Sy tgo thdnh cdc lidn kit
Mure dg do
1 2
X
3
X
X
4
X
• ;
-.—
X
X
X
Trang 8C8
C9
CIO
Cll
C12
C13
C14
CI5
CI6
CI7
C18
C19
C20
C21
C22
C23
C24
C25
C26
C27
C28
C29
C30
C31
C32
C33
034
C35
C36
C37
038
039
040
Co chd phan irng thd ai didn tir
Co che phan iing
Tinh chit hda hgc cua alken
Hifu ling cam ung
Cdc hifu ling didn tir trong hgp chit hflu co
Tinh chat hda hgc ciia alkan
Tinh chat hda hgc ciia alkan
Ddng phan cau tgo vd ddng phan hinh hgc ciia alken
Cdc hifu ling difn tir trong hgp chit hflu co
Lidn kdl hydro
Co chd phan iing
Co chd phan img thd di nhdn
Ddng phdn quang hgc
Ddng phan hinh hgc
Cdu dgng ciia cycloalkan
Aldehyd - Ceton da chiic
Hifu ling cdm img
Ddng phdn quang hgc
Cyclohexan
Khdi nifm acid base trong hda huru co
Hifu ling cam ung
Hifu ling cam iing
Hifu ling cam iing
c i u true phdn tii ciia hgp chit hiiu co
• ' ^ ' /
Ddng phdn cdu dgng
Cdu dgng ciia cycloalkan
Alkan Hydrocarbon no
Lidn kdt hydro
Sy djnh hudng vdo hgp chit nbilu nhdm thi
Ddng phan hinh hgc
1
Ddng phdn quang hgc
— ( I
Ddng phan quang hgc
Ddng phan quang hgc
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Dl lam rd ban kit qud cua cac cdu trie nghifm, vifc phan tich theo thdng sd gidi tinh duoc thuc hidn
Gia thuyit:
Ho: Khdng cd sy khdc bift vl trinh do giua nam sinh vidn vd nfl sinh vidn khi hgc mdn Hda hflu co
Trang 9Tgp chl KHOA HQC OHSP TP HCM 86 34 ndm 2012
H,: Cd sy khdc bift v l trinh dg gifla nam sinh vidn vd nfl sinh vidn khi hgc mfn Hda hflu CO
Mice y nghia: a = 0,05
Kit qud phdn tieh:
Bdng 6 Cdc thdng sd vi gidi tinh khi phdn tich kit qud trdc nghifm
Gidi tinh
Nam
NG
Tdng cfng
Kich thudc miu
58
127
185
Trung binh 23,64 23,05 23,23
Df ifch tidu chuin
4,930 3,614 4,068
Bdng 7 Phdn tieh kit qud trdc nghifm sir dgng kiem dinh ANOVA
mdu dpe lgp ve gi&i tinh
Giflra cdc nhdm
Trong cdc nhdm
Tdng cdng
Tong binh phvorng
13,892 3031,113 3045,005
Df t y do
1
183
184
Binh phuomg trung binh
13,892 16,563
0,839
Mire
y nghia p 0,361
1
Nhdn xet kit qud:
Qua kit qud ciia bdng 7 cho thiy:
+ Trj sd kiim djnh F = 0,839
+ Miic y nghTa p = 0,361 >
a = 0,05 ndn ta chip nhdn gid thuyit HQ
Kit ludn:
Khdng ed sy khdc bift v l trinh dg
giflra nam sinh vidn vd nfl sinh vidn khi
hgc mdn Hda hflu ca
4 Ket lugn
Qua kit qud nghidn curu v l bdi thi
trie nghifm khdch quan mdn Hda hflu
ca, tde gid cd thi riit ra nhthig kit lugn
nhu sau:
1, v l df khd ciia cdc cdu trie
nghifm, bdi thi cd 19 cdu d miirc dg de, 3
cdu d miic dg vira sure vd 18 cdu d miic
do khd so vdi trinh dg ciia sinh vidn ldp
ldm trie nghifm
2 v l dg phdn cdch cua cdc cdu trie
nghifm, bdi thi cd 4 cdu cd dg phdn cdch
rit tdt, 13 cdu cd dg phdn cdch khd tdt, 12
cdu cd dg phdn cdch tam dugc vd 11 cau
cd dg phdn cdch kdm
3 Vd dnh hudng cua gidi tinh, nghidn ciiu cho thiy khdng cd sy khdc bift vd trinh dg giiia nam smh vidn vd nii sinh vien khi hgc mdn Hda hiiu co Do
d6, bdi thi trie nghifm khdch quan mdn
Hda hflru ca mang tinh phd biin doi vdi mgi sinh vien khdng phdn bift gidi tinh Tir nhChig kit lugn tren, tde gia nhgn thiy cd thi sii dyng bdi trie nghiem ndy d l ddnh gid kit qud hgc tap mdn Hoa hOu CO cua smh vien Dgi hgc Y Dugc TP
Hd Chi Minh ndi chung vd sinh vien Khoa Dugc ndi rieng
Tuy nhien, trong qud trinh nghidn cuu bdi trie nghifm ndy, tac gid nghl ring chung ta cin than trgng khi thiit kl mgt bdi thi fric nghifm d l ddnh gid kit qud hgc tgp, trong dd cd phdn logi trinh
df ciia ddi tugng dugc kiim h-a
Trang 10T A I L I $ U THAM K H A O
1 Trdn Bd Hoanh (1995), Ddnh gid trong gido dgc, Tdi lifu dimg cho cdc tmdng Dgi
hgc Su phgm vd Cao ding Su phgm Ha Nfi,
2 Duong Thifu Tdng (1995), Trdc nghidm vd do lu&ng thdnh qud hpc tgp (Phuang
phdp thge hdnh), Bf Gido dye vd Ddo tgo, Tmdng Dgi hgc Ting hgp TP Hi Chi
Minh,
3 Duong Thifu Tdng (1998), Trdc nghifm tiiu chi (Trdc nghifm vd do lu&ng thdnh
qud hpc tgp, Tdp II) - (Phuang phdp thge hdnh), Nxb Gido dye,
4 Duong Thifu Tdng (2005), Thdng ke ung dgng trong nghien ciiru khoa hpc gido dyic
Nxb Khoa hgc Xd hfi
5 Benjamin S Bloom vd cdc cgng sy (1995), Nguyin tde phdn logi muc tiiu gido due: Linh vgc nhgn thirc, Nxb Gido dye (Ngudi djch: Dodn Vdn Dieu),
6 Norman E, Gronlund (1985), Measurement and Evaluation in Teaching, Macmillan
Publishing Company New York
7 Norman E, Gronlund (2000), Assessment of Student Achievement, Allyn & Bacon
8 Thomas M Haladyna (1997), Writing Test Items to Evaluate Higher Order Thinking,
Allyn & Bacon
9 Thomas M Haladyna (2004), Developing and Validating Multiple-Choice Test
Items, Lawrence Eribaum Associates, Inc
(Ngiy Tia so^n nh$n dugc bdi: 18-5-2011; ngiy chip nhin ding: 14-7-2011)