Final answer:
The correct description of the speaker's statement is 'deceptive.' In research, deception might be used to prevent bias, but ethical guidelines must be followed. Honesty is typically associated with positive outcomes, and the phrase emphasizes wariness of being deceived.
Step-by-step explanation:
The phrase "50-50! You wouldn't try to pull a fast one on a little kid!" suggests that the speaker is challenging someone who might be attempting to deceive or take advantage of them. Since the speaker is a child and seemingly apprehensive about being cheated, the correct answer to describe the speaker's statement would be b) Deceptive.
Researchers may sometimes use certain methods to ensure the validity of their study, which could include b) deception. This might involve misleading subjects about the true nature of an experiment to prevent biasing the results. However, it's important to note that ethical guidelines, such as informed consent and debriefing, must be followed to respect the rights and well-being of the participants.
The quote "No one who knows that the result of honesty is always positive would choose wickedness when s/he is aware that it has a negative reward." underlines the importance of honesty as it's generally associated with positive outcomes whereas deception is linked to negative consequences.