19. Now that Sanjana is done with college, she is trying to decide whether or not she should buy a new laptop for herself. She has made a preliminary list of questions she can ask herself to determine if the new laptop is a need or a want. Which of the following questions would you ELIMINATE from this list? * Can I afford this laptop right now? Is this the right time to buy this laptop or will it likely be on sale later? What model laptop is trendy right now with people my age? How am I going to pay for this laptop? If I have to charge it or take out a loan, can | afford the monthly payments?​

Reliability and validity reliability and validity are two important considerations that must be made with any type of data collection. reliability refers to the ability to consistently produce a given result. in the context of psychological research, this would mean that any instruments or tools used to collect data do so in consistent, reproducible ways. unfortunately, being consistent in measurement does not necessarily mean that you have measured something correctly. to illustrate this concept, consider a kitchen scale that would be used to measure the weight of cereal that you eat in the morning. if the scale is not properly calibrated, it may consistently under- or overestimate the amount of cereal that’s being measured. while the scale is highly reliable in producing consistent results (e. g., the same amount of cereal poured onto the scale produces the same reading each time), those results are incorrect. this is where validity comes into play. validity refers to the extent to which a given instrument or tool accurately measures what it’s supposed to measure. while any valid measure is by necessity reliable, the reverse is not necessarily true. researchers strive to use instruments that are both highly reliable and valid.