The Effect of Behavioral Finance on Stock Investment Decisions
Normality Test
Many studies especially those concentrating on the emerging stock markets and least developed economies reported that these markets were at a very high level of data nonnormality.
Normality test investigates if the sample observations are normally distributed. The test compared the values of observations distributed with normal distribution mean and standard deviation, and showed that the sample was free of outliers. The null hypothesis was that "sample distribution was normal". If the test was significant, the distribution was non-normal. The main tests for the assessment of normality were Kolmogrov-Semernov (K-S) test and Shapiro-Wilk test. Table 6 shows the results of normality test.
Table 6 : Distributed Sample Normality Test | ||||||
Variable | Kolmogrov-Semirnov | Shapiro-Wilk | ||||
---|---|---|---|---|---|---|
Statistic | df | Sig. | Statistic | df | Sig. | |
Loss Aversion | 0.069 | 150 | 0.200 | 0.981 | 150 | 0.122 |
Overconfidence | 0.073 | 150 | 0.150 | 0.977 | 150 | 0.061 |
Herding | 0.060 | 150 | 0.200 | 0.988 | 150 | 0.200 |
Risk Perception | 0.070 | 150 | 0.165 | 0.983 | 150 | 0.141 |
Stock Investment Decision | 0.075 | 150 | 0.095 | 0.978 | 150 | 0.064 |
Table 6 reveals that all values of the test were not significant (Sig>0.05). This means that there were no outliers, and that the sample followed normal distribution.