This document includes the questions that you will need to respond to for Pat 1. There are two sections in Part 1. For each section, you will need an SPSS file.

Throughout the assignment, please enter exact p-values. In other words, if the p-value is .034, DON’T enter/write p < .05. Generally, you should round to two decimal places, so .034 becomes .03. However, if the p-value starts with two zeroes, like .0046, then you should round to three decimals (i.e., .005). If the p-value is less than .001, please enter < .001.

Type your answers in the Word document and submit them through the submission link on LMS.; the link is in the “Assignment 2” folder on – LMS. Your response must be received by 2359hrs on  Sunday, 03 April 2022.

Finally, note that you are expected to work on this assignment independently. We will check for plagiarism and collusion. Work that is plagiarised or identical to other students may receive a mark of zero.

Section A 

Data are given in the file ADHD.sav.A researcher was interested to know whether a new drug would show improvements in attentional control in children diagnosed with attention deficit hyperactivity disorder. She recruited 24 children who were administered both the drug (i.e., treatment) and a placebo. She tested the percentage of errors made by participants during a test of attentional control both before administration of the treatment and one week later (post-test), and before administration of the placebo and one week later (post-test); the order of administration of the conditions was counterbalanced across participants.

She tested the following hypothesis to confirm the effectiveness of the drug on attentional control: the new drug treatment should reduce attentional control errors from pre- to posttest, but there should be no change from pre- to post-test when participants receive the placebo.

Perform a suitable analysis of variance on these data, using appropriate follow-up tests if necessary.

• Report the results of the ANOVA, for each of the main effects and the interaction.