Six-year-old Ashley effectively restrained herself from touching a burning candle by inaudibly whispering the word "hot". The advantage of her verbal self-control tactic was most clearly highlighted by
a) Jean Piaget.
b) Erik Erikson.
c) Lawrence Kohlberg.
d) Kev Vygotsky.

In a study, people were asked to imagine simple occasions that made them happy and to remember events that made them feel proud about themselves. it was observed that the subjects developed an increasingly positive attitude. these changes are known to be healthy, leading to greater physical activity and reducing unhealthy habits. based on this excerpt, we can conclude that a positive attitude .