Besc 3020 test 2 - Study guides, Class notes & Summaries

BESC 3020 Test 2 Questions and Answers Graded A+ Updated Why are pre-testing and post-testing necessary steps experiments? - Answer-It tests the effects of the independent variable on the dependent variable. The classical experiment tests the effect of an experimental stimulus (the independent variable) on a dependent variable through the pre-testing and post-testing of experimental and control groups. discuss the importance of similarity between experimental and control groups in exper...

BESC 3020 Exam 3 Questions with All Correct Answers What is statistical significance? - Answer-A general term referring to the likelihood or probability that relationships observed in a sample could be attributed to or due to sampling error alone. Identify the common used tests of statistical significance and their key differences. - Answer-Chi Test: A commonly used test of statistical significance when both the independent and dependent variables are nominal or ordinal variables. t-tes...

BESC 3020 CH. 12 TEST WITH ALL CORRECT ANSWERS What does the "way" of a factorial design indicate? - Answer-The number of factors in a study. A researcher tests the effectiveness of couple's therapy (individual, group) for each spouse (husband, wife). The results show that for both spouses, group therapy is most effective. What effect was described in this example? - Answer-Main effect of Therapy A researcher observed 9 groups in a two-way factorial experimental design. If the levels ...