Psychology Tutor: Mentor (PSI) Psycho-Social Incarnation

Frequency Distributions & Histograms We use frequency distributions (distances between scores) to count the number of people/etc that fall within intervals across a range of values. Frequent = often; more than once or twice; influenced by sample number~ distance of range. The mode is a central tendency statistic that we can use to identify where [...]

The overall standard deviations and mean remain the same in terms of distance from each other. Sometimes it is neater or easier to understand the raw data if it is recoded. For example, ranking of topics by a respondent could be recoded to a 3-point scale; 0= None   1= Moderate and 3= High When you [...]

Familiarity with the language (jargon) of statistics is a must to enable learning and use of the tools.  Stats are useful as tools; they enhance your ability to communicate professionally in the workplace (graduate attributes). And~ In your job you can make some real changes for your clients/customers/patients as well for yourself to be a [...]

A composite image, as above, is the “average face” across all visual images of one particular person. When analysing your data in SPSS you may want to see each participant’s average score across a set of questions/tests. Here is how to create a new variable that will add together the set of scores and then [...]

As regular readers know, I am currently working with a clinical postgrad student to analyse her stats on cognitive function within and across two groups. Due to the small sample of the sub-groups (diagnoses) her supervisor has suggested the use of Bayesian statistics. Well, neither of us have used this form of analysis before and [...]

Analysis of the data you have collected takes time.It is not just about plugging in numbers~ analysis requires thought about why variable distributions look as they do, and what this means in terms of the literature and the goals of the study. You, the student need to be able to run analyses at home, or [...]

How great is this?! A selection of free webcasts to guide your use of SPSS for quantitative and qualitative stats analyses. Are you preparing for a Research Method exam? This will be helpful for you. How helpful was it? Share in a comment below… The webcasts are accessible by simply clicking on a link below. [...]

Image by ╭❀ Hibiskus-Wunder.de╭❀ via Flickr Over at EduFire I am running a short course on the basics of statistics. The goal is to help de-stress and motivate students whilst reviewing materials myself~ there is always something else to learn in this life If you would like to purchase the PowerPoint presentation (7 slides, $3) [...]

A BB reader sez: “This is the world’s biggest database for comparing statistics between countries. Sounds boring, sure- but check out the ‘Mortality‘ stats. They’ve got World Health Organization stats on how people die all over the world – e.g. Austria has the highest per-capita rate of deaths resulting from “Falls involving ice-skates, skis, roller-skates [...]

Image by Denis Collette…!!! via Flickr We are faced every day with oceans of facts and figures. It is impossible to consider each fact individually, so we use “statistics” to deal with these piles of numbers… Read and learn more at Science in Action. Return and share your insights and discoveries~

Thompson’s model of strategic choice (1967) provides a framework for an optimal decision-making approach that aligns with the decision-task demands. The primary aim of the study was to determine if success would occur when Thompson’s strategy was followed. Ho: There will be no difference between the means of the decision approaches used, hence no group [...]

Image via Wikipedia Univariate analysis explores each variable in a data set, separately. It looks at the range of values, as well as the central tendency of the values. It describes the pattern of response to the variable. It describes each variable on its own. Descriptive statistics describe and summarize data. Univariate descriptive statistics describe [...]

The layout of the data sheet helps me to take information from it. 1          2          3          4          5          6          7 Not                                                                  Completely As All 2.   The two variables chosen are relevant to my life as a student. 1          2          3          4          5          6          7 Not                                                                  Completely As All 3.   I expect to find that most [...]