Statistical Analysis for Education and Psychology Researchers

3.5 Statistics as Estimators Whereas this chapter is concerned with initial data analysis, in choosing appropriate descriptive s ...

It is necessary to use the notion of expectation when considering relationships between samples and populations because the expe ...

Deciding which Summary Measure to Use We now have considered descriptive statistics for measures of central tendency and measure ...

3.6 Statistical Models Whereas the primary aim of IDA is to describe and summarize data a secondary aim is to suggest an appropr ...

then is to look at the data using IDA and decide what model may best describe and account for observed variation and in particul ...

Case study A research student collected data on secondary school pupils attributions about chance, mathematical self-concept and ...

Task The initial task facing an investigator would be to perform an initial data analysis. The first step is to scrutinize the d ...

189.. SCORE.. 3 . 188. . 191. . 194. . 200. . 201. . 207. . 208. .. 210 . 214. . 220. . 221. SELFC1.. 44 ..86 . 115. 162.. 181.. ...

How have you dealt with missing values and does this affect your data summary? How have you rounded your summary statistics for ...

Chapter 4 Probability and Inference In this chapter basic statistical concepts involved in the design and subsequent data analys ...

Figure 4.1: Overview of the empirical research process Generally our research questions refer to whole populations of interest, ...

You should by now be convinced of the central role that statistical inference has in quantitative research. Statistical inferenc ...

A probability model for the values of a variable in a population is a mathematical description or a kind of model for randomness ...

explanation until a later section, this should not affect your grasp of how the basic ideas of statistical inference and probabi ...

Interpretation of Statistical Analyses The final stage in the research process is when the researcher interprets the statistical ...

In statistics an event refers to an observable or measurable outcome of an ‘experiment’. The term experiment is unfortunate beca ...

a coin the proportion or long-term relative frequency of heads will approach 0.5, that is half of the outcomes will be heads and ...

Sampling distribution of thestatistic χ^2 stastistic If you are unfamiliar with hypothesis testing you might like to come back t ...

column 1 and a random sample for column 2, but all from one population. In this case the null hypothesis would have to be true b ...

Discrete Probability Distribution Example 4.2: The Binomial Probability Distribution If we choose a simple random sample of 10 s ...