The purchasing agent of an organization acquired some raw materials at a bargain price, even though she knew that their quality was lower than that of the materials customarily used. This action resulted in a favorable raw materials purchase price variance that might very well have been more than offset by:

a. an unfavorable raw materials usage variance
b. a favorable direct labor efficiency variance
c. an unfavorable variable overhead spending variance.
d. an unfavorable direct labor rate variance

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.

Which represents a surplus in the market? a market price equals equilibrium price. b quantity supplied is greater than quantity demanded. c market price is less than equilibrium price. d quantity supplied equals quantity demanded.

Communication comes in various forms. which of the following is considered an old form of communication? a) e-mail b) letter c) skype d) texting