# Statistics and Psychophysics BA Lucknow University 2006 Question Paper

University /Board: Lucknow University
Course: B.A Psychology
B.A ( Part I ) Examination 2006
Psychology
Second Paper (Statistics and Psychophysics)
Time Allowed : Three Hours
Maximum Marks:35

Question Paper Description: 2006 Lucknow University Philosophy and Psychology B.A Second Paper (Statistics and Psychophysics) Question Paper Free Download

Note: Total Number of questions to be answered is Five. Question no. 1 is compulsory.Attempt one question from each unit.Each question of the unit carries 5 marks.

1. Write short answers on the following: 15
(i) Continuous Variable
(ii) Mean
(iii) Histogram
(iv) Concept of Variability
(v) Differential threshold
(vi)Feshner's law
(vii)Space error
(viii)Interval of uncertainity
(ix)Skewness
(x)Ordinal scale

UNIT I
2.Calculate Standard Deviation of the following data by using short method.
CI f
100-104 1
95-99 2
90-94 3
85-89 3
80-84 4
75-79 6
70-74 16
65-69 6
60-64 4
55-59 3
50-54 2
N=50

3.What do you understand by measures of central tendency?cDescribe the importance and limitations of measures of central tendency.

UNIT II
4.The marks obtained by the students in Physics and the marks obtained by them in Mathematics are as follows:
Marks in Physics : 35 23 47 17 10 43 9 6 28
Marks in Maths : 25 23 22 6 8 31 7 9 14
Compute coefficient of correlation and interpret your results.

5. In a certain achievement test,the seventh grade mean is 28.00 and S.D 4.80 ; and the eighth grade mean is 31.60 and S.D is 4.00.What percent of the seventh grade is above the mean of the eighth grade?What percent of the eighth grade is below the mean of the seventh grade?

UNIT III
6.What is paired comparison method?Illustrate with example,how this method can be used?
7.cFollowing ranks were provided by ten students to the preperance for five subjects.Using rank order method;determine a scale on the basis of following data:
Student Sociology Education Psychology Geography History
1 2 5 1 4 3
2 1 3 2 4 5
3 5 1 4 3 2
4 1 3 2 4 5
5 3 2 1 5 4
6 2 1 3 4 5
7 5 3 1 1 2
8 5 2 1 3 4
9 4 1 2 3 5
10 5 2 1 3 4

UNIT IV
8.How method of average error can be used in the determination of stimulus equality?Illustrate your answer with an example.
9.Mention the basic concepts of method of limits.With the help of an example elaborate the calculation of absolute threshold by this method.