The present study is empirical. The methodological aspects of the present study are based on the analysis of secondary data. The data was collected from annual reports of select companies for analysing the impact of XBRL on financial reporting. To analyse conceptual aspects and review earlier studies information is gathered from various reputed journals, newspapers, websites and books.
Data collection
For the collection of secondary data, annual reports of the top 30 NSE listed companies were considered. But out of the top 30 companies, 7 companies were eliminated because of the non-application of XBRL for financial reporting and these companies are out of the purview of XBRL regulations as they are operating in the banking, finance and power sector.
Research Period
To analyse the impact of XBRL on the quality of financial reporting the study is considered 2011 as the base year because XBRL was implemented in India for financial reporting by select companies. Based on the availability of annual reports of all the 23 select companies from 2005 to 2010 is considered as pre-XBRL implementation period and from 2011 to 2020 is considered as XBRL period.
Research Instrument
The self-constructed research instrument (Appendix-1) was used and is based on the financial reporting quality assessment model (developed by Jonas & Blanchet, 2000). The research instrument contains 11 dimensions and 44 variables and which is the base for assessing the quality of financial reporting both during the pre-XBRL period and during the XBRL period. The list of dimensions considered for assessing the quality of financial reporting is shown in the following table.
Table No.01: Quality of Financial Reporting Dimensions
Sl. No.
|
Quality of Financial Reporting Dimensions
|
No. of. Variables
|
01.
|
Relevance
|
04
|
02.
|
Predictive Value
|
06
|
03.
|
Feedback Value
|
04
|
04.
|
Timeliness
|
04
|
05.
|
Verifiability
|
06
|
06.
|
Completeness
|
03
|
07.
|
Representational Faithfulness
|
05
|
08.
|
Neutrality
|
02
|
09.
|
Comparability
|
02
|
10.
|
Consistency
|
04
|
11.
|
Clarity (Understandability)
|
04
|
Total number of items
|
44
|
Source: (Jonas & Blanchet, 2000).
Content Analysis
Information from annual reports of selected companies is gathered with the help of content analysis techniques based on a checklist developed with the help of Jonas & Blanchet's model of financial reporting quality assessment. Content Analysis is the scientific and systematic approach that involves classifying and codifying qualitative and quantitative information contained in the annual reports of companies into pre-defined categories for drawing valid conclusions by applying more appropriate statistical tools (Holsti, 1969; Krippendorff, 1980 ; Guthrie & Abeysekera, 2006). To mark the score about the information contained in the annual report binary code or ordinal scale method can be used. The binary code method of scoring is used for quantitative analysis which involves recording either the presence or absence of information which is indicated in '1' or ‘0’ respectively(Guthrie & Abeysekera, 2006; Marston & Shrives, 1991). Under the ordinal scale method both quantitative and qualitative analysis can be done (Guthrie & Abeysekera, 2006; Beattie et al., 2004; Kavitha & Nandagopal, 2011). The score is ranging from 5 to 1, where 5 indicates the high quality of information and 1 indicated the low quality of information.
Quality of Financial Reporting Index
The quality of the Financial Reporting Index (QFRI) was calculated from the data gathered from content analysis for further statistical analysis. The main aspect of the present study is to assess the quality of financial reporting of select companies both in the context of XBRL and Non-XBRL reporting. Several methods can be employed for assessing the quality of financial reporting. Among the several methods, the disclosure index method is the most popular in accounting research for assessing the quality of financial reporting. Further, the disclosure index methodology helps in assessing both the quantity and quality of financial reporting (Cerf, 1961; Hooks et al., 2002). Therefore, the study is used the following index to assess the quality of financial reporting and which is adopted from (Beattie et al., 2002; Urquiza et al., 2009).
QFRi = (As – Mins) / (Maxs – Mins)
Where,
QFR i = Quality of Financial Reporting Index.
A s = Actual score obtained by the company on a specific QFR dimension.
Min s = Minimum score a company can obtain on a specific QFR dimension.
Max s = Maximum score a company can obtain on a specific QFR dimension
Reliability and Validity
Reliability analysis was made to check the internal consistency of the research instrument. Validity shows the accuracy of data to test and re-test to derive valid conclusions. The following table reveals the results of the reliability analysis.
Table No.02: Results of Reliability Analysis
Scale
|
No. of Items
|
Cronbach Alpha
|
Remarks
|
Relevance
|
04
|
0.814
|
The reliability level of data is Excellent
|
Predictive Value
|
06
|
0.866
|
Feedback Value
|
04
|
0.854
|
Timeliness
|
04
|
0.864
|
Verifiability
|
06
|
0.875
|
Completeness
|
03
|
0.739
|
Representational Faithfulness
|
05
|
0.885
|
Neutrality
|
02
|
0.612
|
Comparability
|
02
|
0.716
|
Consistency
|
04
|
0.878
|
Clarity
|
04
|
0.801
|
Overall
|
44
|
0.926
|
Source: Annual Reports Of Companies
The Cronbach's Alpha concerning all the financial reporting quality dimensions is more than 0.6. Hence, it can be concluded that the internal consistency and validity of data gathered from annual reports of select companies is excellent.
Statistical Tools
For drawing valid conclusions from the data gathered for the study statistical and econometric tools were used which include ANOVA dummy variable regression models for assessing the level of Quality of Financial Reporting and the Impact of XBRL on the Quality of Financial Reporting and to test the hypothesis Tukey's Post Hoc Multiple comparison tests are used.