Before using the measure in her study, Dr. Rodriquez gives the measure to a group of participants on the first day of the semester and again on the last day of the semester. Dr. Rodriquez is examining the scatterplot of the data she collected and notices that the dots are very close to forming a diagonal line. This indicates which of the following?

Dr. Morimoto is curious as to whether exposing people to violent video games causes them to be more aggressive. He assigns half his participants to play a video game for 5 minutes and the other half to play for 7 minutes. He finds that there is no effect of playing the game and being aggressive. What might be to blame for this null effect?

READ THE FOLLOWING SCENARIO TO ANSWER THE NEXT 1 QUESTION.  In previous studies, Dr. Schulenberg has established that finding meaning in one’s everyday work activities can lead to greater success in the workplace (e.g., productivity, creativity). He is curious as to whether this can happen in the college classroom. Specifically, he is curious whether finding meaning in one’s classroom experience can lead to greater academic performance. In the spring semester, he has his teaching assistant randomly assign half the class to write a paragraph each class period about how the material has meaning for their lives (meaning group). The other half writes a paragraph about what they did to prepare for class (preparation group). He does not know which of his students are writing which paragraph, and the students are not aware they are responding to different writing assignments. To measure academic performance, he gives the students a midterm essay exam and a final exam.

For his research methods class project, Hiro is studying the effect of pet ownership on stress levels. Although a lot of research has been done on dog and cat owners, not much is known about other pets.  As a result, Hiro decides to study bird owners. Which of the following would demonstrate a snowball sampling technique?

If a sample is biased, then it is  ___________________ the population of interest.

The rest of this exam is the cumulative section covering information from the first 2 exams.  Each question is worth 1 point.  

A psychologist is working with the parents of four children who exhibit violent behaviors toward each other. The parents have been instructed to record the number of these behaviors each child exhibits in the predinner hour for 1 week. The parents then begin using a positive reinforcement technique to shape the behavior of the youngest child while continuing to record violent behaviors. The recording continues and the technique is used on one additional child each week. By the end of 6 weeks, there is a significant decrease in violent behaviors for each of the children. Which type of design is this?

READ THE FOLLOWING SCENARIO TO ANSWER THE NEXT 2 QUESTIONS.  Dr. Ruva creates a survey to measure how happy her students are with her teaching this semester. She is teaching two classes: Psychology and Law and Cognitive Psychology. She writes the following 4 questions for her survey:                   question 1.  What was your favorite part of this class?                   question 2.  Please rate how much you agree with the following statement: This was one of my favorite classes all semester.   strongly agree  agree  neutral  disagree  strongly disagree                                                                                                                            question 3.  Which of the following is most true of you?                                       A) I am a very serious student.                                       B) I try only as hard as I have to.                   question 4: How easy did you feel this class was? very easy easy neither easy or hard hard very hard   

Taking into account the nature of the design and results obtained, what is the best description of their conclusion?

Nick works longer hours at his current job as he know that if he works more now and does a great job on his year end projects that he will be up for the promotion. He works these long hours because he expects by doing so he will get the promotion. What aspect under expectancy theory does this best describe?