The following information is available for Murphy Company: Allowance for doubtful accounts at December 31, 2019 $ 24,000 Credit sales during 2020 1,200,000 Accounts receivable deemed worthless and written off during 2020 27,000 As a result of a review and aging of accounts receivable in early January 2021, it has been determined that an allowance for doubtful accounts of $16,000 is needed at December 31, 2020. What amount should Murphy record as "bad debt expense" for the year ended December 31, 2020? Group of answer choices $40,000 $16,000 $19,000 $13,000

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.