I believe the answer is: d. <span>Baillargeon eliminated the need for a child to have the motor skills necessary to display object permanence and focused instead on the patterns of their gazes
Development of object permanence would enhance the children's process in examining the environment around them. This would accelerate their understanding on their existence within the environment and the scope of things that they're able to do to their surrounding.</span>
The correct answer is A) How does Brand X affect the amount of grease that is cleaned off of a dish?
Explanation:
In this scenario, the focus of Evan is to test the effect of detergent X on grease because this would allow Evan to verify if this detergent is better than brand Y. This means Evan's question needs to include the two main factors tested which are Brand X and the amount of grease cleaned off the dish.
According to this, the best option is "How does Brand X affect the amount of grease that is cleaned off of a dish?" because this focuses on the factor Evan is interested in. Also, this is a testable question because through experiments Evan can answer it. Moreover, other factors such as the number of dishes, the amount of detergent or the cooking time in other options are not related to Evan's interests.
Answer:
Experimenter, participant
Explanation:
Experimenter expectancy effects can be described or considered as an error in the scientific findings or inquiries, where the researchers' expectations concerning their enquiries or findings are made known unconsciously to the subjects or participant, and this will automatically influence their responses.
This is also known as the object expectancy effect.
The subject or participant expectancy effect occurs when the result being expected by the participants or subjects unconsciously affect the expected result.
It should be noted that the experimental expectancy effect can be prevented by double-blind design. Double-blind design is a situation where both the experimenter and the participant do not know the subject identity.
The participant expectancy effect can be prevented by a single-blind design, where the subject is not aware if he/she is the experimental test object.
A. Even simple things can have a great purpose
