When Shelly hired the housecleaning service, she asked them to use her hypoallergenic cleaning supplies. Instead the workers used their own supplies and Shelly had to lose a day from work because of her allergic reaction to the smell of the cleaners. When Shelly looked at the service guarantee that the workers had left, she found that she could get a reimbursement for all of her out-of-pocket expenses if she had a notarized letter from her doctor describing her condition and her reaction, an affidavit from the workers that they had used the wrong cleaners and another notarized statement that she would not have become ill if the workers had used the right cleaners. This service guarantee is ineffective because it is NOT:

Which of the following is a disadvantage to choosing a sole proprietorship business structure? question 9 options: the owner has personal responsibility for the company's liabilities. the owner has to share the profits with partners. the owner is still liable for personal debts. the owner has to report to shareholders.

Match the type of agreements to their descriptions. will trust living will prenuptial agreement

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.