## What's new in *MetaWin* 2.0?

Many new analyses and features are found in *MetaWin* 2.0 that were not
present in the previous version. Below is a brief description of some of these
new features:

**Spreadsheet Editor**

*MetaWin* 2.0 now has a spreadsheet editor that can read
text files, Excel files, and Lotus files. In addition, the data file size is no
longer limited by the program, but only by available space on the hard drive
(and RAM).

**Calculation of Effect Sizes**

*MetaWin* 2.0 now calculates 6 different effect sizes
from the data, rather than 2. These can be calculated from three types of
primary data: (1) means, standard deviations, and sample sizes, (2) two x two
contingency tables, and (3) correlation coefficients.

**Summary Analyses**

*MetaWin* 2.0 allows for the calculation of both
fixed-effects and random-effects meta-analytic models, from three different
types of data structure: data from one population (i.e., no structure),
categorical (ANOVA) data, or continuous (regression) data.

**Exploratory Analyses and Graphics**

A number of exploratory analyses have been added to
*MetaWin* 2.0, including:
- Cumulative analysis
- Fail-safe calculations
- Correlation methods for detecting publication bias
- Graphical analyses such as funnel plots, radial plots, histograms, quantile plots, regression plots

**Statistical Calculator**

*MetaWin* 2.0 also includes a statistical calculator so
that test-statistics may be converted to a common effect size metric.

Return to the *MetaWin*
Home Page

Revised by Dean C. Adams,
dcadams@iastate.edu, 7 December, 1999.