This assignment I failed 60-100 score 

Overall, you have covered many elements. However, there is not the details needed to support your thoughts. There were issues with originality of thought. See the Originality reports for your submission. You give various definitions of intelligence but do not "critique" said definitions. Which theory do you think best fits your selected instruments? There is little to no coverage that evaluate the measures of intelligence you selected for reliability, validity, normative procedures, and bias. See rubric for more details.