1.Random assignment in an experiment helps rule out potential influences of control variables.

True

False

2. Survey results show that individuals who identify themselves as lonely also report a high frequency of Facebook use. This finding indicates a cause relation between perceived loneliness and Facebook use.

True

False

3. A researcher wants to explore if touching a product before purchasing can increase consumers purchase intention. The researcher theorizes that touching a product can enhance consumers' perceived ownership of the product, which in turn increases purchase intention. To measure Perceived Ownership, the researcher created a two-item scale, "I feel a very high degree of personal ownership of the Mug" and "I feel like I own this mug." Participants respond to the questions on a 5-point scale: 1 = strongly disagree, 5 = strongly agree.

According to the above context, which of the following is RIGHT?

		These two items are problematic because they have the same meanings. Using two items with identical meanings is unnecessary when measuring Perceived Ownership.
		These two items are good for measuring Perceived Ownership.
		Adding the item "This mug is well-designed" to the existing two items can make the measurement of Perceived Ownership better.
		All of the above are correct

4. Typically, respondents' personal or demographic information (e.g., age, education level, or income) should be placed at the beginning of a questionnaire.

True

False