100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Previously searched by you
Previously searched by you
logo
Psychology 253 $3.97   Add to cart
Quickly navigate to
Preview
  2.  
  3. Stellenbosch University (SUN)
  4.  
  5. Psychology

Exam (elaborations)

Psychology 253

3 reviews
 625 views  7 purchases
  • Course
  • Psychology
  • Institution
  • Stellenbosch University (SUN)

Short notes about the tests and 1st op exams. If your 1st op exam is anything like ours (2015), these notes should help a lot - especially 3rd and 4th term. Each set of notes has 2 - 4 pages. These were the exact questions I received. Go buy the Psychology 3rd Year Bundle though! =D

Preview 1 out of 2  pages

Document information

  • March 8, 2018
  • 2
  • 2018/2019
  • Exam (elaborations)
  • Unknown

Subjects

  • psychology
  • statistics
  • psychology253
  • stellenbosch psychology
  • psychology 253
  • mean
  • mode
  • median
  • maths
  • stellenbosch university

Written for

  • Stellenbosch University (SUN)
  • Psychology
All documents for this subject (13)

3  reviews

review-writer-avatar

By: 18640680 • 6 year ago

reply-writer-avatar

By: jamesm • 5 year ago

Thank you! Hope your exam went well!

review-writer-avatar

By: AmyAnneParker • 6 year ago

review-writer-avatar

By: 19773102 • 6 year ago

reply-writer-avatar

By: jamesm • 5 year ago

Thank you! Hope your exam went well! :D

Seller

avatar-seller
jamesm

Reviews received

Content preview

Psychology 253
(Data Analysis in Psychology)
Chapter 1
Statistical Methods
i. Descriptive Statistics (p.4)
ii. Inferential Statistics (p.4)

Measurement Scales
a. Nominal Scale (p.6)
b. Ordinal Scale (p.7)
c. Interval Scale (p.7)
d. Ratio Scale (p.7)

 Continuous Scale vs Discrete Scale (p.8)

- For all above: be able to differentiate and to match scale/method with a scenario – see
tuts!

Chapter 2
- Distribution
o Positively skewed – skewed to left – more low scores
o Negatively skewed – skewed to right – more high scores
o Symmetric distribution – no skew

Possible Q&A:
 A normal distribution: symmetrical, bell-shaped, can be used to calculate probabilities
 The standard deviation of intelligence score of male students is 14,5 and that of
females is 18,5. This means male students are more homogeneous than female
students regarding intelligence.’
 If Z = 1, then the population is smaller than the raw score.
 A value like the standard deviation that is calculated for a population is the square of
the variance.
 Advantage of mean over median: more stable than the median.
 Positively skewed distribution scores that occur the least will be to the right side of
the distribution.
 More likely to reject null hypothesis if the rest statistic we compute is bigger than .05.
 In a study on the effectiveness of the different therapeutic techniques two judges
ranked twenty patients with regard to the regard of insight shown after the therapeutic
sessions. It is an ordinal scale.
 P > 0,05 means the null hypothesis should be rejected.
 If behaviour problems scores are normally distributed and we want to make inferences
regarding the probability that specific valves can occur we must calculate the Z
values.
 The null hypothesis is rejected if p > .05.

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller jamesm. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $3.97. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

72042 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
$3.97  7x  sold
  • (3)
  Add to cart