Chi and an pham are self-employed writers. they pay 100% of the ppo insurance premium of $12,345
annually. they also have a dental plant that costs $875 annually and a vision plan that costs $450 annually.
the premiums are paid monthly. how much do they pay each month?

Agroup of student volunteers participates in a study designed to assess several behavioral interventions for improving output in a repetitive task. prior to the beginning of the study, all volunteers unknowingly observed, and their output is measured. at the beginning of the study, prior to any intervention, the volunteers perform the same task under the observation of a study administrator, and their overall output increases. which of the following terms describes this phenomenon? a. simpson's paradox b. hawthorne effect are d. novelty effect d. pygmalion effect e. observer-expectancy effect