An education researcher was interested in examining the effect of the teaching m

Question

An education researcher was interested in examining the effect of the teaching method and the teacher on students' reading levels. 257 students participated in an experiment. There were two different teachers (Juliana and Felix) and three different teaching methods (A, B, and C). Students were randomly assigned to a teaching method and teacher. At the end of the semester the students took a reading test on which they received a score out of 20. Students who studied with Felix using method B achieved the highest scores O ACompletely randomized over one factor (teaching method) O BRandomized block design, blocking on the teacher, with one factor, the teaching method. ° C Blocked by teacher, blocked by teaching method O D Completely randomized over two factors (teaching method and teacher) O E Randomized block design, blocking on the teaching method, with one factor, the teacher

Explanation / Answer

here cause randomization is being done over teacher and methods

therefore correct option is D

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