with an result consisting of the treatment group having a mean of 70.9 and a standard deviation of 17.2, control group having a mean of 62.4 with a standard deviation of 23.07, The effect size is estimated to be d= 0.418 (small size), probability level will be 0.02 with a power level of 0.1 and a sample size of 30 using a two-tailed test for a research proposal of the halo effect experiment, discuss the results you expect to find, including internal validity of the experiment in terms of the manipulation and validity checks -consistency of findings under all experimental conditions. how would you reduce the halo effect in the future?