Furthermore, from the descriptive statistics of the Type I scores, it was found that the students in the experimental group had better achievements than those in the control group (i.e., the original means were 35.71 versus 31.67), although the difference was not significant.
This implies that MKC could also be helpful to the students in improving their basic knowledge of plants, although the effect was not so apparent. The reason for the non-significant difference could be due to the small sample size; therefore, it is reasonable to expect that significant difference might be derived if the sample size is large enough.