Complete worksheet 7

Problem Set #7

due Sunday, April 14th

Instructions. Watch the lectures for this week’s module covering the independent samples two-way ANOVA. Then, respond to each of the questions below by highlighting the correct answer or typing your answer in the corresponding answer box. If a question has multiple parts, be sure to address each. To receive full credit, you must upload a photo showing your work on items that require calculations (i.e., your hand-written steps that led you to your answer). Upload your completed document (and an image of your work) to the appropriate iCollege submission folder. This assignment must be completed individually, without any assistance or collaboration.

For question 1, refer to the paragraph and data below:

Researchers were interested in examining how children with autism see and understand the world. Participants included children diagnosed with autism and typically developing children, who were all approximately the same age. Children were randomly assigned to view different stimuli on a large computer screen for two minutes. The stimuli were either social (i.e., people’s faces) or nonsocial (inanimate objects). The number of seconds children spent looking at the stimuli was recorded (ranging from 0 to 120). The results are presented below:

1. State each of the research questions associated with this factorial design and conduct the necessary calculations to answer them. Then, describe/interpret the results for each question. Assume that differences greater than or equal to 5 are significant.
   Note: In your responses, use the actual names of the variables instead of labeling them IV1 or IV2.

See next page for Questions 2-4

For questions 2-4, refer to the paragraph and data below:

Seasonal affective disorder (SAD) is a type of depression during seasons with less daylight. One therapy for SAD is phototherapy, which involves the use of increased exposure to light to improve mood. A researcher tests this therapy by exposing different samples of SAD patients to different intensities of light (low or high) in a light box, either in the morning or at night. Participants then rated their mood following this therapy on a scale from 1-10. The data are presented below.