This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Explain autocorrelation and why its presence is an issue for the use of parametric statistical ... (Read 68 times)

corkyiscool3328

  • Hero Member
  • *****
  • Posts: 539
on: Jun 20, 2018
Explain autocorrelation and why its presence is an issue for the use of parametric statistical analyses.
 
  What will be an ideal response?

Question 2

Explain how change in level and trend from baseline to intervention phases are immediate indicators of a potentially successful intervention.
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

billybob123

  • Sr. Member
  • ****
  • Posts: 336
Reply #1 on: Jun 20, 2018
Answer to Question 1

Autocorrelation refers to the tendency of observations to correlate with another (rather than being truly independent observations of the dependent variable). In single subject research, one often expects to find trends in data which would indicate the presence of autocorrelation. A lag or time series analysis can definitively establish the presence or absence of autocorrelation. Its presence then precludes the use of parametric statistics because of the assumption that data points are independent of one another.

Answer to Question 2

First, change in level (particularly if there is little or no overlap of data from baseline to intervention phase) indicates the dependent variable is indicating a rapid and substantial change in responding with the introduction of the intervention. This suggests at least a rapid effect.
Second, change in trend in the dependent variable also can be an indicator of rapid effect. An ascending baseline that reverts to a descending trend (assuming reduction in behavior is desired) or vice versa (descending or flat baseline changes to ascending trend in a program to increase the target behavior) is an indicator of a rapid and positive effect.
Repeated measures and replication effects are necessary to fully establish the functional relationship.


corkyiscool3328

  • Member
  • Posts: 539
Reply 2 on: Jun 20, 2018
Thanks for the timely response, appreciate it

parshano

  • Member
  • Posts: 333
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

Did you know?

Approximately 500,000 babies are born each year in the United States to teenage mothers.

Did you know?

The cure for trichomoniasis is easy as long as the patient does not drink alcoholic beverages for 24 hours. Just a single dose of medication is needed to rid the body of the disease. However, without proper precautions, an individual may contract the disease repeatedly. In fact, most people develop trichomoniasis again within three months of their last treatment.

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

Urinary tract infection. A UTI is characterized by fever, lumbar or abdominal pain, and pain or burn Urinary tract infection. A UTI is characterized by fever, lumbar or abdominal pain, and pain or burn
Swabbing a Petri dish to spread apart colonies. Bacitracin disk is used to prove the presence or ... Swabbing a Petri dish to spread apart colonies. Bacitracin disk is used to prove the presence or ...
Social scientists have not done well at devising theories to explain lovely romantic moments Social scientists have not done well at devising theories to explain lovely romantic moments
Explain the assumptions that must be satisfied in order to validly use the one-way ANOVA ... Explain the assumptions that must be satisfied in order to validly use the one-way ANOVA ...
Explain the myogenic autoregulation of the glomerular filtration rate Explain the myogenic autoregulation of the glomerular filtration rate
A mammalian cell demonstrating the presence of mtDNA A mammalian cell demonstrating the presence of mtDNA
Video: Bone processes - resorption and deposition, remodeling and response to stress in adult bones

For a complete list of videos, visit our video library