University of Lucknow 2005 B.A Psychology , Second (Statistics and Psychophysics) - Question Paper

B.A ( Part I) exam 2005

Psychology
2nd Paper(Statistics and Psychophysics)

Time Allowed : 3 Hours
Maximum Marks:35

Note: Total Number of ques. to be answered is Five. ques. no. one is compulsory.Attempt 1 ques. fom every unit.Each ques. of the unit carries five marks.


1.Write short answers on the following: 15
(i) Interval scale
(ii) Continuous variable
(iii) Median
(iv) kind I fault
(v) Kurtosis
(vi)Level of significance
(vii)PSE
(viii)Habituation fault
(ix)Constant fault
(x)Stimulus limen



UNIT I
2.Calculate the mean from the subsequent data.State the conditions where it is more suitable:
CI f
50-54 3
45-49 5
40-44 7
35-39 8
30-34 9
25-29 6
20-24 5
15-19 4
10-14 3
N=50

3.Differentiate ranging from physical and psychological measurement.Describe nominal and rank order scales.


UNIT II
4.100 twelve year old students have a mean of 80.00 and S.D. 8.00 on the initial trial of a learning test.On the 10th trial the mean is 84.00 and S.D. is 10.00 .The r ranging from the 1st and 10th trial is 40.Test the hypothesis that practice leads to gain in performance at 0.05 level of significance.
5.In a certain college, five grades A,B,C,D and E are assigned .If the ability in Mathematics is distributed normally,how many students in a group of 500 should receive every grade?



UNIT III
6.What do you understand by method of limits?How will you compute stimulus threshold by the method of limits?Illustrate with example.
7.Write short notes on the following:(i) Weber's legal regulations (ii) Difference limen



UNIT IV
8.Find out the scale values of the 5 stimuli on the basis of the data provided beneath using the paired comparison method:
STIMULI A B C D E
A - 30 25 15 40
B 20 - 25 20 35
C 25 25 - 30 20
D 35 30 20 - 35
E 10 15 30 15 -


9. define the method of Rank Order.How this method is various from paired comparison method?

Earning:   Approval pending.