The experiment is done in a class consisting of 20 subjects. The class is divided in to three groups consisting of five members each. Thus, three samples with size 5 are obtained from the 20 subjects. Each group is given different information. The first group is given word information. The second group is given picture information. And, the last group is given both word and picture information. The memory recognition scores is obtained using yes-no recognition procedure. The scores of the correct answers of the subjects were recorded.

The recorded scores are then used in order to analyze the existence of dual coding theory in memory recognition of a person. After obtaining the memory recognition scores, the researcher used descriptive statistics in order to summarize the data. On the other hand, statistical analysis is used to test for the hypothesis of the research. Particularly, the researcher used One-way analysis of variance. One-way analysis of variance is used to determine if there is a difference between the mean of three groups (Howell, 2008).

In conjunction with one-way analysis of variance, the researcher conducted a post hoc test in order to determine where the differences lie when the result is significant. III. Results One-way analysis of variance is conducted in order to test the null hypothesis that there is no difference between the memory recognition of a person when exposed to different types of information (verbal, non-verbal). The test is conducted at 0. 05 significance level. The decision is to reject the null hypothesis when the p-value of the F-statistic is less than 0. 05 significance level.

Otherwise, the researcher failed to reject the null hypothesis. From the table, one can see that the mean memory recognition for the group given with word information is 5. The value means that the average memory recognition score of a person given with word information is 5. One can see that the mean memory recognition for the group given with picture information is 4. The value means that the average memory recognition score of a person given with picture information is 4. Lastly, one can see that the mean memory recognition for the group given with word and picture information is 8.

The value means that the average memory recognition score of a person given with word and picture information is 8. The standard deviations for the three groups are 2. 8284, 1. 5811 and 1 respectively. The values mean that there is an average spread of 2. 8284, 1. 5811 and 1 respectively from their corresponding mean memory recognition scores. From the table, one can see that the F-statistic value is equal to 5. 652. The corresponding probability value of the F-statistic is 0. 019. Since the p-value of the F-statistic is less than 0.

05 significance level, the researcher rejected the null hypothesis that there is no difference between the memory recognition of a person when exposed to different types of information (verbal, non-verbal). Post Hoc analysis of the data is conducted in order to determine where the difference lie between the three obtained mean memory recognition scores. Specifically, the researcher used Tamhane’s T2 test in order to determine where the differences lie between the three mean memory performances scores. The test is conducted at 0. 05 significance level. After conducting Tamhane’s T2 test, the researcher obtained the following results.