Making Questions Using Likert Scale

Making Questions Using Likert Scale For Chapter 3

Work Plan  Review of Past Lessons  Rensis Likert  Likert Scale  Interpreting the Data from Likert Scale  Computing for the Weighted Mean  Samples  Reminders

Rensis Likert  American educator and organizational

psychologist  did research on major corporations around the world, and his studies have accurately predicted the subsequent performance of the corporations.  He developed Likert scales and the Linking pin model.

Likert Scales  is a scale often used in questionnaires, and

is the most widely used scale in survey research. (ex: PLED DCIA survey)

 When responding to a Likert questionnaire

item, respondents specify their level of agreement to a statement.

 Words like Poor to Excellent are used

Sample Question presented using a fivepoint Likert Scale A typical test item in a Likert scale is a statement, the respondent is asked to indicate their DEGREE OF AGREEMENT with the statement.

Remember:  It is best to use a five point scale to suit

statistical tools. (e.g., Chi square, ANOVA, Pearson R)  Positive attributes are given the high

point values. The highest point value goes to the most positive attribute and the lowest point value goes to the most negative.

Milk is good for breakfast.  Strongly agree  Agree  Neither agree nor disagree  Disagree  Strongly disagree

Examples of Options with assigned values: Example A

Example B

 5: Excellent

 5: Large extent

 4: Very Good

 4: Certain extent

 3: Average

 3: Not sure

 2: Below Average

 2: Limited Extent

 1: Poor

 1: Not at all

Examples of Options with assigned values: Example C

 5: Always  4: Frequently  3: Seldom  2: Occasionally  1: Never

Interpreting the Data from the Likert Scale  Use the weighted mean to compute the data from the

scale. For example: Options

Frequency

OF

Total

5

8

5x8

40

4

21

4x21

84

3

7

3x7

21

2

3

2x3

6

1

1

1x1

1

Options 5 Excellent 4 Very Good 3 Average 2 Below Average 1 Poor TOTAL

Frequency 8 21 7 3 1

OF 5x8 4x21 3x7 2x3 1X1

Total 40 84 21 6 1 152

Add the total ( 40+84+21+6+1) Divide the total with Total Number of Respondents (F):

152÷40 = 3.8 Therefore the weighted mean is 3.8 (Very Good)

 If you need to interpret therefore, you begin first with

the graphical presentation before stating the weighted mean of the item/s. Figure 1: How Students Rate Their Performance in English 5 Excellent

8% 3%

19%

18%

4 Very Good 3 Average

52%

2 Below Average 1 Poor

Figure 1 shows that 21 or 52% rated themselves 4 (Very Good), 8 or 19% rated themselves 5 (Excellent), 7 or 18% rated themselves 3 (Average), 3 or 8% rated themselves 2 (Below Average) and 1or 3% rated himself 1(Poor). This means that majority of the respondents rated themselves 4 ( Very Good). The weighted mean is 3.8. This supports the statement that students consider themselves Very Good as far as their performance in English is concerned.

Reminders:  Consult your PASS advisers re:

questionnaires. Make sure that the questions / items in the questionnaires are aligned with the statement of the problem.  For statistical treatment needed consult

Ms. Agnes Cortes.