The Procrastination Log (PL) was administered both at intake (pretest to a one-hour individual counseling session on procrastination) and on outtake (posttest). The PL is the most widely used instrument for assessing difficulties with procrastination. It is a 9-item self-report questionnaire that measures procrastination-related behavior during the past week.The table below displays the group means and standard deviations of Procrastination Log scores:| Group | Intake | | Outtake | ||-------------------------------|--------|---------|---------|---------|| | M | SD | M | SD || Same-attribution group (n = 27) | 43.5 | 8.6 | 37.4 | 9.1 || No attribution group (n = 27) | 45.7 | 5.9 | 33.4 | 10.8 || Different-attribution group (n = 27) | 41.9 | 10.7 | 36.8 | 9.2 |*Higher scores indicate greater self-reported procrastination.### Detailed Explanation- **Group Categories**: - **Same-attribution group**: Participants maintain consistent reasons for their procrastination. - **No attribution group**: Participants are not given specific reasons for their procrastination. - **Different-attribution group**: Participants are given different or changing reasons for their procrastination.- **Intake and Outtake**: - **Intake M and SD**: Mean and standard deviation scores at the pretest. - **Outtake M and SD**: Mean and standard deviation scores at the posttest.- **Scores**: - **M (Mean)**: Represents the average self-reported procrastination score. - **SD (Standard Deviation)**: Reflects the variability of scores within each group.- **Interpretation**: - A decrease in average scores from intake to outtake suggests a reduction in self-reported procrastination. - Each group's average score decreased from intake to outtake, indicating that the intervention may have had a positive effect on reducing procrastination. **Transcription:**d. Assuming that the distribution of PL scores for the "No attribution group" at "Intake" is normal, between what two scores did approximately the middle 95% of participants lie?e. Assuming that the distribution of PL scores for the "No attribution group" at "Outtake" is normal, between what two scores did approximately the middle 99.7% of participants lie?**Explanation:**This text discusses statistical concepts related to normal distribution. The queries refer to understanding the spread of scores within a dataset, specifically focusing on the "No attribution group" data during "Intake" and "Outtake" phases. - In part (d), the question pertains to finding the range that includes the middle 95% of participants, which corresponds to the interval within two standard deviations from the mean in a normal distribution.- In part (e), the focus shifts to the interval encompassing the middle 99.7% of participants, representing the range within three standard deviations from the mean. These questions are foundational for understanding data variability and confidence intervals in statistics.

Answered: The Procrastination Log (PL).was…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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