[Solved] Principles of operant conditioning underlie which of the following techniques? A) counterconditioning B) systematic desensitization C) stress inoculation training D) the token economy Experimental Group: is the group in an experiment that receives the variable being tested, allowing researchers to observe the effects of that variable. Sexual Thought: Mental reflections or fantasies about sexual activity or erotic situations. Explicit Sexual Content: Material that depicts sexual activities or genitalia in a very direct and clear manner, intended for adult audiences. Word-Completion Task: A cognitive assessment activity where individuals fill in the blanks within words based on cues, testing memory or processing ability.