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.