Descriptive Statistics
Normally, professionals claimed with 2.step 1 (SD = 1.71) hookup couples and you can hooking up around six moments (SD = 8.5) in past times 90 days. In total, 34.8% away from students reported having unsafe sex throughout the a connection. 0%), effect intimately disappointed (39.0%), be sorry for you to definitely a relationship ran too far (35.3%), and embarrassment (thirty-five.1%).
Dimensionality
A keen EFA offered evidence one to investigation was indeed well enough unidimensional to meet up with new assumptions of one’s IRT studies (RMSEA = .053, RMSR = .09, ? dos (119) = , CFI = .94, ratio of your own basic to help you second eigenvalue = 5.5:1). Every circumstances was indeed definitely stacked to the single foundation (facts loading .thirty six to help you .83). 1
Goods Match
Defectively fitted facts was eliminated on level considering complement plots of land and you can modified ? dos /df ratios (Stark, Chernyshenko, & Drasgow, 2005). Adjusted ? 2 /df ratios more than about three getting single, double and you can triplet situations was indeed candidates getting deletion (Drasgow, Levine, Tsien, Williams, & Mead, 1995). One item “I’ve sensed distressed one a link did not create me personally feel better regarding me the following day†is removed predicated on poor product match.
Table step 1 merchandise new factor rates and you can basic mistakes of your own leftover 16 affairs. Item hills (a) ranged out-of 0.69 so you’re able to 2.84. The location details (b) varied of 0.fourteen (regretting a hookup) so you’re able to 2.73 (contracting an enthusiastic STI). IIFs and you will items discrimination (a) was basically checked out to determine things to end up being retained regarding finally level. Items that had reduced discrimination and you will lower items recommendations was in fact candidates getting removal, as well as 2 factors (“We have concerned that i could have obtained pregnant otherwise received my relationship spouse expecting†and you may “My friends keeps teased myself regarding a relationship.â€) had been removed about size (a good = 0.69 and you can 0.87 respectively). Removing these items in the measure got absolutely nothing affect the newest limited reliability having ? (sixteen situations r = 0.78 and you can 14-items roentgen = 0.76). The past 14-goods variation got appropriate degrees of accuracy and you will practical error off aspect ( Profile step one ). The latest measure are most reliable on determining negative results for those individuals whoever ? fell involving the indicate (? = 0; roentgen = .85) and you can step 1.5 practical deviation over the imply (? = step one.5; roentgen = .84).
Attempt advice and you may practical error from dimension qualities getting 14-item measure. Solid line indicates overall guidance; dotted range suggests simple error. Theta is plotted regarding dos SD underneath the suggest to three SD over the suggest.
Differential Items Operating
IRTLRDIF was applied to determine four anchor facts (items cuatro, 8, 12, and you will fourteen). With your point circumstances, i recognized half dozen more items that have been DIF totally free (issues 1, step 3, 5, eight, 10, 13) and you will five items having DIF (things dos, 6, 9, 11). All products exhibited tall DIF throughout the b factor (difficulty), but not the fresh ? parameter (discrimination). The last calibration of the five products having DIF is shown into the Table dos . When you look at the for each and every instance, boys called for large levels of the brand new hidden characteristic to help you recommend the thing. Including, while you are women that has a hidden attribute score everything 0.65 SD above the mean got good 50% likelihood of showing they’d experienced upset you to a connections partner hasn’t called her or him pursuing the hookup, boys with a hidden feature rating to one or two SD over the mean had a beneficial 50% odds of promoting a similar item.
Desk dos
For male and female college students, the full quantity of linking negative has an effect on try absolutely synchronised having 
number of relationship people, r(284) = .33, p Table step 3 ). Meant for the brand new standard-associated legitimacy of NIHI, members just who claimed with involved with non-safe sex at least one time throughout a hookup prior to now three months reported higher bad hookup outcomes (Yards = 4.48, SD = step 3.46) than just students who did not have unsafe sex (Yards = 2.72, SD = 2.71), t(605) = 6.89, p ***
| .05 | .25 ** | .thirty-five *** | .35 *** | ||||
| V2 | Level of partners | .twenty-four *** | — | .twenty-eight *** | .03 | .03 | .03 |
| V3 | Connect frequency | .03 | .39 *** | — | ?.07 | .01 | .04 |
| V4 | Despair | .twenty five ** | ?.04 | .10 | — | .68 *** | .70 *** |
| V5 | Anxiety | .twenty-six ** | ?.04 | ?.03 | .68 *** | — | .77 *** |
| V6 | Stress | .twenty eight *** | ?.02 | .07 | .72 *** | .69 *** | — |
