Final answer:
The limitations of a multiple baseline across behaviors design include limited internal validity, observer bias, and demand characteristics, affecting the study's outcomes.The correct option is c.
Step-by-step explanation:
The three potential limitations of a multiple baseline across behaviors design might include limited internal validity, observer bias, and demand characteristics. Limited internal validity can occur because this design does not always allow for the clear demonstration that the intervention caused the change in behavior, as other factors might be contributing. Observer bias refers to the possibility that researchers might unconsciously skew their observations to support their hypotheses, an issue that can be mitigated by having clear criteria for observations and using the measure of inter-rater reliability. Demand characteristics are cues that suggest to participants how they are expected to behave, which can lead to altered behavior and affect the study's outcomes.