Apersonality assessment model that taps basic dimensions encompassing most of the significant variation in human personality, namely extraversion, agreeableness, conscientiousness, emotional stability, and openness to experience.

Big Five Model

Explanation:

 The big five model is basically refers to the human personality traits or the assessment model of personality as it helps in describing the theory about the personality analysis by gathering all the survey data or information.

 It is also refers as the FFM (five factor model) and based on the proper observations it analysis all the human personality.  

According to the given question, the big five model is one of the basic model which describe about the human personality, emotional stability, extra-version and the openness for experience.

 Therefore, Big Five Model is the correct answer.

this null effect is caused by a weak manipulation and ineffective internal validity. in a scientific study, as the one dr. morimoto is trying to perfom, internal validity refers to the confidence placed in the cause-effect relationship and to how well an experiment is done and able to eliminate confounding variables.