Validity and Reliability Test Results

68 Manager EDP, Controller, Auditor, Company Tack and the Share Registry Manager. As for the duties as follows: a Securing the corporate property b Organize and manage the companys cash resources c Manage the collection of accounts receivable and related legal cases such as fraud d Coordination standardization and administrative procedures

B. Discussion of Results Questionnaire

1. Validity and Reliability Test Results

Validity is a measurement that indicates the level of accuracy of an instrument the size of the concepts studied Suharso, 2009:108. In order to obtain primary data researchers distributing questionnaires to the respondents who shopped at Carrefour Lebak Bulus. A valid point statement said if the value of each item statement or r value is positive and greater than r table. In the test a try out 30 respondents, the researchers used the formula df = n – 2, so 30 – 2 = 28 and found to be 0,361 as the value of r table. While the reliability test is used to test the consistency of the data within a certain period, namely to determine the extent of measurement used can be trusted or relied upon. These variables Cronbach Alpha said its own values 0,70 which means that the instrument can be used as a reliable data collection is relatively 69 coefficient measurement results if performed repeated measurements. Reliability test aims to see consistency Ghozali, 2011:48. Before the questionnaire was distributed to 100 respondents, the researchers did try out or pre-survey of 30 respondents to give a questions 33 to test the validity and reliability of the entire statement. Here are the results of validity and reliability in the variable service quality research, sales promotion, customer satisfaction and customer loyalty. 70 Table 4.1 Try Out Validity Test Results Questions Calculated Value Table Value Describe Service Quality X 1 Service Quality 1 0,782 0,361 Valid Service Quality 2 0,790 0,361 Valid Service Quality 3 0,655 0,361 Valid Service Quality 4 0,871 0,361 Valid Service Quality 5 0,872 0,361 Valid Service Quality 6 0,617 0,361 Valid Service Quality 7 0,782 0,361 Valid Service Quality 8 0,463 0,361 Valid Service Quality 9 0,649 0,361 Valid Service Quality 10 0,767 0,361 Valid Service Quality 11 0,570 0,361 Valid Service Quality 12 0,570 0,361 Valid Service Quality 13 0,872 0,361 Valid Service Quality 14 0,458 0,361 Valid Service Quality 15 0,537 0,361 Valid Sales Promotion X 2 Sales Promotion 1 0,810 0,361 Valid Sales Promotion 2 0,760 0,361 Valid Sales Promotion 3 0,760 0,361 Valid Sales Promotion 4 0,818 0,361 Valid Sales Promotion 5 0,807 0,361 Valid Sales Promotion 6 0,763 0,361 Valid Sales Promotion 7 0,698 0,361 Valid Sales Promotion 8 0,810 0,361 Valid 71 Questions Calculated Value Table Value Describe Customer Satisfaction X 3 Customer Satisfaction 1 0,731 0,361 Valid Customer Satisfaction 2 0,892 0,361 Valid Customer Satisfaction 3 0,647 0,361 Valid Customer Satisfaction 4 0,927 0,361 Valid Customer Satisfaction 5 0,905 0,361 Valid Customer Satisfaction 6 0,826 0,361 Valid Customer Loyalty Y Customer Loyalty 0,800 0,361 Valid Customer Loyalty 0,911 0,361 Valid Customer Loyalty 0,912 0,361 Valid Customer Loyalty 0,833 0,361 Valid Source: SPSS primary data have been processed, 2016 Results try out table 4.1 shows that of 33 items a questioner given to the 30 respondents has a value of r value greater than r table 0,361, which means all items declared invalid statement. To test reliability was found the following results: Table 4.2 Results Try Out Test Reliability Variable Cronbach’s Alpha N of item Information Service Quality 0,920 15 Reliability Sales Promotion 0,907 8 Reliability Customer Satisfaction 0,902 6 Reliability Customer Loyalty 0,887 4 Reliability Source: SPSS primary data have been processed, 2016 72 Based on table 4.3 above all the variables, service quality, sales promotion, customer satisfaction and customer loyalty has a Cronbachs Alpha values above 0,70 then all variables expressed reliable.

2. Descriptive Respondents