Data for: Singles of Both Sexes Expedite Reproduction: Shifts in Sexual-Timing Strategies Before and After The Typical Age of Female Menopause

The Excel sheet is divided into 3 tabs, reflecting the three different waves of Singles in America used in this work and all raw variables needed to draw identical results described in our paper. This dataset does not include transformations (e.g. Stress remains in categorical, not numeric, form). Singles in America is sponsored by the online dating company Match.com; however, participants were not drawn from the Match.com or subsidiary site populations. Additional details on how each sample was collected are available in the manuscript.

This dataset contains only a subset of the original Singles in America dataset, both in terms of individuals included and variables measured. The original data in Study 1 and 2A limited participation to US residents age 21+ identifying their sex as male and female. Further, those individuals were only included if they were not married, engaged, in a domestic partnership, or living together. The sample provided here is further limited to heterosexuals who were not currently dating someone and also excludes those not providing their marital status. Study 2B recruited individuals as young as 18 who were single in the legal sense (i.e. being unmarried). The sample shown here includes only heterosexuals identifying as male or female who were not in a commited dating relationship and were either single and not seeing anyone or casually dating one or more people.

Data Provided (Varying by Study):
Age: In Years
Sex: Male or Female
Sexual-Timing Strategy: "How long do you typically wait before having sex with a new partner?". Blanks in Study 2B reflect individuals who preferred not to answer or did not give a response.
Sexual Thoughts Frequency: How often participants thought about sex.
Sexual Activity Frequency: How often participants had sex in the past 12 months.
Stress Over Biological Clock: Stress produced by ticking of biological clock on a 5-point Likert-type scale.
Comments on Single Status A Month: 0-19, with individuals replying '20+' having their response removed.

本Excel工作表分为3个工作表标签，分别对应本研究使用的《美国单身人士》（Singles in America）调研的三轮不同轮次，同时包含了复现论文中所述相同结果所需的全部原始变量。本数据集未包含经过转换处理的变量（例如，压力维度仍保留分类变量形式，而非数值型变量）。

《美国单身人士》调研由在线交友平台Match.com赞助，但调研参与者并非从Match.com及其附属站点的用户群体中招募而来。关于各样本的具体采集方式，可查阅论文手稿获取更多细节。

本数据集仅为原版《美国单身人士》数据集的子集，无论是纳入的个体样本还是测量变量均有所筛选。研究1与2A的原始数据仅纳入21岁及以上、自我报告性别为男或女的美国居民，且仅包含未婚、未订婚、无家庭伴侣关系或未同居的受访者。本次提供的样本进一步限定为当前未处于恋爱关系的异性恋者，同时剔除了未提供婚姻状态信息的受访者。研究2B招募的受访者年龄低至18岁，且为法律意义上的单身者（即未婚状态）。本次展示的样本仅包含自我报告性别为男或女的异性恋者，且未处于稳定恋爱关系中，具体分为两类：一是单身且未与他人交往者，二是与一人或多人进行非正式约会者。

提供的数据（因研究不同有所差异）：
年龄：以周岁计
性别：男或女
性节奏策略（Sexual-Timing Strategy）：“你通常会在与新伴侣发生性行为前等待多久？”。研究2B中的空白项代表不愿作答或未给出回应的受访者。
性想法频率：受访者思考性行为的频率。
性行为频率：受访者过去12个月内发生性行为的频率。
生理时钟压力（Stress Over Biological Clock）：基于5点李克特量表测量的、由生理时钟催逼产生的压力水平。
月度单身状态评价：分值范围为0-19，所有作答“20+”的受访者数据均已剔除。