Abstract
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Method
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Method

Analysis

Because the present study was descriptive, the statistical analyses reported in the following sections of the article are straightforward and consist of crosstabulation of variables, display of distributions, and calculation of measures of central tendency.  Because of missing data in the Institute records, the analyses involved Kinsey ns that were smaller than the total n for the Kinsey census sample.  These active ns are specified in the text and/or tables.  No statistical tests of mean differences were employed between the Kinsey and photo samples since they did not jointly fulfill all the assumptions of such tests.  Differences that are noted in the text will be those that are most apparent and compelling to the writer.

We appreciate that group differences in this study could be due to some combination of the following:  (a) greater than average homosexual and/or naturist (nudist) representation in the photo sample, (b) a secular trend representing actual physical changes between the time of the Kinsey data collection and the current day, (c) more accurate and valid measurement in the photo sample, (d) some degree of reporting bias in the Kinsey data due to face-to-face interview reporting and self-measurements.  All of these may be affecting the study, but in our discussion we will attempt to state what we believe to be the main sources of any observed differences.

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