Which transformations will produce similar, but not congruent, figures? select each correct answer. parallelogram jklm is dilated by a scale factor of 6 and then translated 2 units down to form parallelogram j"k"l"m" . parallelogram jklm is rotated 90° clockwise and then reflected across the y-axis to form parallelogram j"k"l"m" . parallelogram jklm is translated 8 units left and then reflected across the x-axis to form parallelogram j"k"l"m" . parallelogram jklm is translated 6 units up and then dilated by a scale factor of 10 to form parallelogram j"k"l"m" .

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